WO2017183384A1 - 電源モジュールおよび電源装置 - Google Patents
電源モジュールおよび電源装置 Download PDFInfo
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- WO2017183384A1 WO2017183384A1 PCT/JP2017/011582 JP2017011582W WO2017183384A1 WO 2017183384 A1 WO2017183384 A1 WO 2017183384A1 JP 2017011582 W JP2017011582 W JP 2017011582W WO 2017183384 A1 WO2017183384 A1 WO 2017183384A1
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- Prior art keywords
- power supply
- supply module
- substrate
- resin member
- inductor
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/065—Hermetically-sealed casings sealed by encapsulation, e.g. waterproof resin forming an integral casing, injection moulding
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
- H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
- H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
- H05K1/182—Printed circuits structurally associated with non-printed electric components associated with components mounted in the printed circuit board, e.g. insert mounted components [IMC]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/02—Arrangements of circuit components or wiring on supporting structure
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
- H05K7/1427—Housings
- H05K7/1432—Housings specially adapted for power drive units or power converters
- H05K7/14322—Housings specially adapted for power drive units or power converters wherein the control and power circuits of a power converter are arranged within the same casing
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10015—Non-printed capacitor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/1003—Non-printed inductor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10166—Transistor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10431—Details of mounted components
- H05K2201/10507—Involving several components
- H05K2201/10522—Adjacent components
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10431—Details of mounted components
- H05K2201/10507—Involving several components
- H05K2201/10545—Related components mounted on both sides of the PCB
Definitions
- the present invention relates to a power supply module, and more particularly to a power supply module including a substrate and a plurality of electronic components mounted on the substrate. Moreover, it is related with a power supply device provided with the power supply module and a mounting substrate.
- Patent Document 1 a DC / DC converter module having a structure in which an electronic component such as an IC chip is directly mounted on the upper surface of a chip inductor is known.
- An object of the present invention is to provide a power supply module that can further reduce the mounting area with a simple configuration, and a power supply device including the power supply module and a mounting board.
- the power supply module of the present invention is A first outer surface, and a second outer surface adjacent to the first outer surface and perpendicular to the first outer surface, A substrate having a first surface and a side surface; A plurality of electronic components mounted on at least the first surface; A first resin member formed on the first surface and sealing the electronic component mounted on the first surface; A terminal electrode exposed at least on the first outer surface; With The substrate has the first surface orthogonal to the first outer surface, The first outer surface is formed over at least the side surface of the substrate and the first resin member, The area of the first outer surface is smaller than the area of the second outer surface.
- the thickness of the first resin member is equal to or greater than the thickness necessary for sealing a plurality of electronic components mounted on the first surface. That is, the area of the first outer surface necessary for stable mounting is ensured. Therefore, with this configuration, it is possible to realize a power supply module that can be stably mounted with a small mounting area.
- the substrate further includes a second surface facing the first surface and orthogonal to the first outer surface, and some of the plurality of electronic components are formed on the second surface. And a second resin member formed on the second surface and sealing the electronic component mounted on the second surface, wherein the first outer surface further includes the second resin member. Preferably it is formed.
- an inductor mounted on the first surface or the second surface and sealed by the first resin member or the second resin member, and some of the plurality of electronic components Is preferably disposed at a position overlapping the inductor in plan view of the first surface or the second surface.
- the inductor is a relatively large component. Therefore, with this configuration, the power supply module can be easily downsized.
- the plurality of electronic components include an input capacitor connected to an input unit, an output capacitor connected to an output unit, and between the inductor and the input capacitor or the inductor and the A switching element connected to any one of the output capacitors and configured to switch a current flowing through the inductor, wherein the input capacitor and the output capacitor are either the first surface or the second surface.
- the switch element may be mounted on a surface different from the surface on which the input capacitor and the output capacitor are mounted on the first surface or the second surface.
- the plurality of electronic components include an input capacitor connected to an input unit, an output capacitor connected to an output unit, between the inductor and the input capacitor, and the inductor and the A switching element connected between the output capacitor and switching the current flowing through the inductor, wherein the input capacitor and the output capacitor are either one of the first surface and the second surface.
- the switch element may be mounted on a surface different from the surface on which the input capacitor and the output capacitor are mounted on the first surface or the second surface.
- the switch element is a position where at least a part of the switch element overlaps at least one of the input capacitor or the output capacitor in plan view of the first surface or the second surface. It is preferable to arrange
- This configuration shortens the distance on the plane between the switch element and the input capacitor or output capacitor compared to the case where the switch element and the capacitor are arranged side by side on the same substrate. The wiring length between the two becomes shorter. Therefore, the loop inductance and conductor resistance of the power supply module are reduced, and the switching noise suppression effect by the input capacitor and the output capacitor is enhanced. Therefore, conduction noise from the power supply module to the conductor pattern formed on the substrate is reduced. Further, radiation noise from the power supply module to the outside is reduced. In addition, this configuration improves the power conversion efficiency of the power supply module.
- a conductor formed on the substrate is provided, and the switch element is at least partially in plan view of the first surface or the second surface. It is preferable to be disposed at a position overlapping the conductor.
- the conductor formed on the substrate functions as a shield that shields noise radiated from the switch element, so that noise radiated from the power supply module can be suppressed.
- the terminal electrode is preferably formed from a part of the first outer surface to a part of the second outer surface.
- the number of the terminal electrodes is plural, and the plurality of terminal electrodes are the first along the ridge between the first outer surface and the second outer surface. It may be arranged in the direction.
- the power supply device of the present invention A mounting board; A plurality of power supply modules comprising: a first outer surface; and a second outer surface adjacent to the first outer surface and orthogonal to the first outer surface; With Each of the plurality of power supply modules is A substrate having a first surface and a second surface; A plurality of electronic components mounted on at least the first surface; A first resin member formed on the first surface and sealing the electronic component mounted on the first surface; A terminal electrode exposed at least on the first outer surface; With The substrate has the first surface orthogonal to the first outer surface, The first outer surface is formed over at least the side surface of the substrate and the first resin member, The area of the first outer surface is smaller than the area of the second outer surface, The plurality of power supply modules are arranged in a second direction orthogonal to a first direction along a ridge between the first outer surface and the second outer surface, mounted on the mounting board, and electrically connected in parallel to each other. It is characterized by being.
- the wiring length (conductor resistance) for connecting a plurality of power supply modules to each other is compared with the case where a power supply module having a structure in which the first surface and the second surface of the substrate are parallel to the mounting surface is mounted on the mounting substrate. Therefore, a low-loss power supply device can be realized. Also, with this configuration, a plurality of power supply modules can be connected in parallel with each other by simple wiring. Therefore, it is not necessary to route complicated wiring to connect the plurality of power supply modules in parallel with each other, and the connection between the plurality of power supply modules is facilitated.
- the plurality of power supply modules may be mounted on the mounting board via solder.
- the present invention with a simple configuration, it is possible to realize a power supply module that can further reduce the mounting area, and a power supply device that includes the power supply and the mounting board.
- FIG. 1A is a perspective view of the power supply module 101 according to the first embodiment
- FIG. 1B is a perspective view of the power supply module 101 viewed from another viewpoint
- 2A is a perspective view showing the internal structure of the power supply module 101
- FIG. 2B is a front view of the power supply module 101
- FIG. 3A is a left side view of the power supply module 101
- FIG. 3B is a right side view of the power supply module 101.
- FIG. 4 is a circuit diagram of the power supply module 101.
- FIG. 5 is a front view of the power supply module 102 according to the second embodiment.
- 6A is a left side view of the power supply module 102
- FIG. 6B is a right side view of the power supply module 102.
- FIG. 5 is a front view of the power supply module 102 according to the second embodiment
- 6A is a left side view of the power supply module 102
- FIG. 6B is a right side view of the power supply module 102.
- FIG. 7 is a circuit diagram of the power supply module 102.
- FIG. 8A is a front view of the power supply module 103 according to the third embodiment, and FIG. 8B is a left side view of the power supply module 103.
- FIG. 9A is a circuit diagram of a power supply module 104A according to the fourth embodiment, and FIG. 9B is a circuit diagram of another power supply module 104B according to the fourth embodiment.
- FIG. 10 is a plan view showing a main part of a power supply apparatus 201 according to the fifth embodiment including the power supply module of the present invention.
- FIG. 11 is a plan view showing a main part of a power supply device 200 of a comparative example including the power supply module 100.
- FIG. 1A is a perspective view of the power supply module 101 according to the first embodiment
- FIG. 1B is a perspective view of the power supply module 101 viewed from another viewpoint
- 2A is a perspective view showing the internal structure of the power supply module 101
- FIG. 2B is a front view of the power supply module 101
- FIG. 3A is a left side view of the power supply module 101
- FIG. 3B is a right side view of the power supply module 101.
- the first outer surface VS1 is hatched for easy understanding of the structure.
- illustration of the first resin member 11 and the second resin member 12 is omitted for easy understanding of the structure.
- FIGS. 2B, 3A, and 3B the first resin member 11 and the second resin member 12 are shown transparent for easy understanding of the structure.
- the power supply module 101 is a step-down DC / DC converter module.
- the power supply module 101 is a rectangular parallelepiped module including a first outer surface VS1, a second outer surface VS2, and a third outer surface VS3 that are parallel to the X-axis direction and the Y-axis direction.
- the first outer surface VS1 is a mounting surface of the power supply module 101.
- the second outer surface VS2 and the third outer surface VS3 are both adjacent to the first outer surface VS1 and orthogonal to the first outer surface VS1.
- surface A and surface B are orthogonal is not limited to the case where surface A and surface B intersect with each other at an angle of 90 ° strictly, taking into account design and manufacturing deviations and the like. Including the case of being substantially orthogonal. The same applies to the following embodiments.
- the power supply module 101 includes a substrate 1, an inductor 2, a control IC 3, two capacitors 21, switch elements 31, 32, a first resin member 11, a second resin member 12, and six terminal electrodes P1, P2, P3, P4. , P5, P6 and the like.
- the substrate 1 is a flat plate having a rectangular planar shape, and has a first surface PS1, a second surface PS2 facing the first surface PS1, and a side surface SS1.
- the first surface PS1 and the second surface PS2 of the substrate 1 are both surfaces parallel to the X-axis direction and the Z-axis direction.
- the side surface SS1 is adjacent to both the first surface PS1 and the second surface PS2, and is orthogonal to the first surface PS1 and the second surface PS2.
- the first surface PS1 and the second surface PS2 of the substrate 1 are orthogonal to the first outer surface VS1, and are parallel to the second outer surface VS2 and the third outer surface VS3.
- the substrate 1 is a printed wiring board including a thermosetting resin such as an epoxy resin.
- the control IC 3, the two capacitors 21, and the switch elements 31 and 32 are mounted (mounted) on the first surface PS 1 of the substrate 1, and the inductor 2 is mounted (mounted) on the second surface PS 2 of the substrate 1.
- the control IC 3 is, for example, a microprocessor chip or an IC chip.
- the two capacitors 21 are an input capacitor and an output capacitor, for example, a ceramic chip capacitor.
- the switch elements 31 and 32 are, for example, FETs.
- the inductor 2 is a chip inductor, for example.
- the control IC 3, the two capacitors 21, and the switch elements 31 and 32 are mounted on the first surface PS1 of the substrate 1 via a conductive bonding material such as solder.
- control IC 3 the two capacitors 21, the switch elements 31, 32, and the like correspond to “a plurality of electronic components mounted on the first surface” in the present invention.
- the inductor 2 is mounted on substantially the entire second surface PS2 of the substrate 1. Therefore, all of the plurality of electronic components (the control IC 3, the capacitor 21, the switch elements 31, 32, etc.) are arranged on the inductor 2 in a plan view (viewed from the Y-axis direction) of the first surface PS1 or the second surface PS2. It is arranged at the overlapping position.
- the inductor 2 is mounted on the second surface PS2 of the substrate 1 via a conductive bonding material such as solder.
- the first resin member 11 is formed on the first surface PS1 of the substrate 1, and corresponds to the control IC 3 and the two capacitors 21 ("input capacitor” and “output capacitor” in the present invention) mounted on the first surface PS1. ) And the switch elements 31 and 32 are rectangular parallelepiped resin blocks. In other words, the control IC 3, the two capacitors 21, and the switch elements 31, 32 are embedded in the first resin member 11 formed on the first surface PS1 of the substrate 1.
- the first resin member 11 is a thermosetting resin such as an epoxy resin.
- the second resin member 12 is a rectangular parallelepiped resin block that is formed on the second surface PS2 of the substrate 1 and seals the inductor 2 mounted on the second surface PS2. In other words, the inductor 2 is embedded in the second resin member 12 formed on the second surface PS2 of the substrate 1.
- the second resin member 12 is a thermosetting resin such as an epoxy resin.
- the first outer surface VS1 of the power supply module 101 is formed across the side surface SS1, the first resin member 11, and the second resin member 12 of the substrate 1.
- the second outer surface VS ⁇ b> 2 of the power supply module 101 is formed on the first resin member 11.
- the area of the first outer surface VS1 is smaller than the area of the second outer surface VS2.
- the power supply module 101 has a structure in which a plurality of electronic components mounted on the first surface PS1 of the substrate 1 are sealed in the first resin member 11. That is, the thickness of the first resin member 11 (the thickness of the first resin member 11 in the direction orthogonal to the first surface PS1 of the substrate 1 (Y-axis direction)) is a plurality of electronic components mounted on the first surface PS1. It is more than the thickness necessary for sealing.
- the power supply module 101 has a structure in which the inductor 2 mounted on the second surface PS ⁇ b> 2 of the substrate 1 is sealed with the second resin member 12. That is, the thickness of the second resin member 12 (the thickness of the second resin member 12 in the Y-axis direction) is equal to or greater than the thickness necessary for sealing the inductor 2 mounted on the second surface PS2.
- the width of the power supply module (the dimension of the power supply module in the Y-axis direction) is larger than that required for the above structure. That is, the area of the first outer surface VS1 necessary for stable mounting is ensured.
- Terminal electrodes P1, P2, P3, P4, P5, and P6 are columnar electrodes for connection to external electrodes, and a part thereof is embedded in the first resin member 11 so as to be exposed at least on the first outer surface VS1.
- the terminal electrodes P1, P2, P3, P4, P5, and P6 are mounted on the first surface PS1 of the substrate 1 and connected to a conductor pattern or the like formed on the substrate 1.
- the terminal electrodes P1, P2, P3, P4, P5, and P6 are located on the first side of the substrate 1 (the lower side of the substrate 1 in FIG. 3A), and the first outer surface VS1 and the second outer surface. It is exposed to VS2. Further, as shown in FIG.
- the terminal electrodes P1, P2, P3, P4, P5, and P6 are formed from a part of the first outer surface VS1 to a part of the second outer surface VS2, and the first outer surface VS1. And the second outer surface VS2 are arranged in a first direction (X-axis direction) along a ridge.
- the terminal electrodes P1, P2, P3, P4, P5 and P6 are, for example, rectangular parallelepiped Cu blocks.
- FIG. 4 is a circuit diagram of the power supply module 101.
- the inductor 2, the two capacitors 21, and the switch elements 31 and 32 shown in FIG. 3A and FIG. 3B are respectively connected to the inductor L, the input capacitor Cin, the output capacitor Cout, and the switch element Q1. This is indicated by Q2.
- the terminal electrode P1 is a voltage input unit that receives a DC voltage
- the terminal electrode P2 is a ground
- the terminal electrode P6 is a voltage output unit.
- the inductor L and the switch element Q1 are connected between the terminal electrode P1 and the terminal electrode P6.
- the switch elements Q1 and Q2 are elements that switch the current flowing through the inductor L.
- the switch element Q1 is connected between the terminal electrode P1 and the inductor L, and the switch element Q2 is connected between the terminal electrode P2 (ground) and the inductor L.
- the input capacitor Cin is connected between the terminal electrode P1 and the terminal electrode P2 (ground)
- the output capacitor Cout is connected between the terminal electrode P6 and the ground
- the control IC 3 is connected to the switch elements Q1 and Q2, respectively. Yes.
- the drain of the switch element Q1 is connected to the terminal electrode P1
- the source of the switch element Q1 is connected to the first end of the inductor L
- the second end of the inductor L is connected to the terminal electrode P6.
- the drain of the switch element Q2 is connected to the first end of the inductor L, and the source of the switch element Q2 is connected to the terminal electrode P2 (ground).
- the first end of the input capacitor Cin is connected to the terminal electrode P1
- the second end of the input capacitor Cin is connected to the terminal electrode P2 (ground)
- the first end of the output capacitor Cout is connected to the terminal electrode P6.
- the second end of Cout is connected to the terminal electrode P2 (ground).
- the control IC 3 is connected to the gate and source of the switch elements Q1 and Q2, respectively.
- the power supply module 101 constitutes a step-down DC / DC converter module.
- the power module 101 according to this embodiment has the following effects.
- a plurality of electronic components and an inductor 2 are mounted on the first surface PS1 and the second surface PS2 of the substrate 1, and the first outer surface VS1 in which the first surface PS1 and the second surface PS2 are mounting surfaces. It is a structure orthogonal to.
- the area of the first outer surface VS1 is smaller than the area of the second outer surface VS2.
- the power supply module 101 has a structure in which a plurality of electronic components mounted on the first surface PS1 of the substrate 1 are sealed with the first resin member 11, and the inductor 2 mounted on the second surface PS2 is the second.
- the resin member 12 is sealed. That is, the thickness of the first resin member 11 in the Y-axis direction is equal to or greater than the thickness necessary for sealing a plurality of electronic components mounted on the first surface PS1, and the second resin member 12 in the Y-axis direction. The thickness is equal to or greater than the thickness necessary for sealing the inductor 2 mounted on the second surface PS2. That is, with this configuration, the area of the first outer surface VS1 necessary for stable mounting is ensured. Therefore, it is possible to realize a power supply module that can be stably mounted with a small mounting area (even if the first outer surface VS1 is orthogonal to the first surface PS1 and the second surface PS2 of the substrate 1).
- the inductor and the plurality of electronic components are mounted on the first surface PS1 and the second surface PS2 of the substrate 1, respectively. Therefore, compared with the case where the inductor and the plurality of electronic components are mounted on one of the first surface PS1 and the second surface PS2 of the substrate 1, the size is small (particularly, the dimensions in the X-axis direction and the Z-axis direction are small). Can be realized.
- the terminal electrodes P1, P2, P3, P4, P5, and P6 are formed from a part of the first outer surface VS1 to a part of the second outer surface VS2, and the first outer surface VS1 and the first outer surface VS1. 2 Exposed on the outer surface VS2.
- the electronic components (the control IC 3, the capacitor 21, and the switch elements 31, 32) mounted on the first surface PS1 are sealed with the first resin member 11, and the inductor mounted on the second surface. 2 is sealed with the second resin member 12.
- the entire power supply module is robust, and the durability of the power supply module itself with respect to mechanical strength, external force, and the like is increased.
- heat generating components electronic components that generate heat during operation of the switch elements 31 and 32, the control IC 3 and the like (hereinafter referred to as “heat generating components”) are sealed with a resin member having higher thermal conductivity than air. . Therefore, heat generated from the heat generating component is dispersed through the resin member, so that heat dissipation is improved.
- the heat generating component (switch elements 31, 32, etc.) is mounted on the first surface PS1, and the first resin member 11 on which the power module mounting surface (first outer surface VS1) is formed is formed. It is sealed.
- the resin member is filled in the gap between the heat generating component and the mounting board, and the heat generating component contacts the mounting board through the resin member. Therefore, this configuration makes it easier to disperse the heat generated from the heat-generating component to the mounting substrate than when a power supply module having a structure in which the heat-generating component is not sealed by the resin member is mounted on the mounting substrate. Further increase.
- substrate 1 can be shortened by forming the board
- Second Embodiment an example of a power supply module in which electronic components other than the inductor are mounted on the second surface PS2 of the substrate 1 is shown.
- FIG. 5 is a front view of the power supply module 102 according to the second embodiment.
- 6A is a left side view of the power supply module 102
- FIG. 6B is a right side view of the power supply module 102.
- the first resin member 11 and the second resin member 12 are shown to be transparent in order to make the structure of the power supply module 102 easy to understand.
- the positions of the switch elements 31 and 32 are indicated by broken lines for easy understanding of the structure
- FIG. 6B the positions of the conductors 4 are indicated by broken lines for easy understanding of the structure. Is shown.
- the power supply module 102 is that the power supply module according to the first embodiment is that some of the plurality of electronic components (control IC 3, two capacitors 21) are mounted on the second surface PS2 of the substrate 1. Different from the module 101.
- the power supply module 102 is different from the power supply module 102 in that the power supply module 102 has a conductor 4 formed on the substrate 1.
- Other configurations are substantially the same as those of the power supply module 101.
- the conductor 4 is a U-shaped (C-shaped) conductor pattern formed inside the substrate 1.
- the conductor 4 is a ground conductor formed inside the substrate 1, for example.
- the control IC and the two capacitors 21 are mounted on the second surface PS2 of the substrate 1 and are sealed by the second resin member 12 formed on the second surface PS2 of the substrate 1.
- the switch elements 31, 32 are different from the surface (second surface PS2) on which the capacitor 21 (input capacitor and output capacitor) is mounted (first surface PS2) of the first surface PS1 or the second surface PS2. It is mounted on the surface PS1).
- these switch elements 31, 32 and the like correspond to “a plurality of electronic components mounted on the first surface” in the present invention.
- the control IC 3 and the capacitor 21 correspond to “a plurality of electronic components respectively mounted on the second surface” in the present invention.
- the switch elements 31 and 32 are arranged at positions where at least a part thereof overlaps the capacitor 21 (at least one of the input capacitor and the output capacitor) when viewed from the Y-axis direction. Is done. Further, as shown in FIG. 6B, the switch elements 31 and 32 are arranged at positions where at least a part thereof overlaps the conductor 4 when viewed from the Y-axis direction.
- FIG. 7 is a circuit diagram of the power supply module 102. As shown in FIG. 7, in the power supply module 102, a loop Llp is configured by the input capacitor Cin and the switch elements Q1 and Q2.
- the power supply module 102 has the following effects in addition to the effects described in the first embodiment.
- the switch elements 31 and 32 when viewed from the Y-axis direction, are arranged at positions where at least a portion overlaps the capacitor 21 (at least one of the input capacitor and the output capacitor).
- the distance on the plane (XZ plane) between the switch elements 31 and 32 and the input capacitor (or output capacitor) compared to the case where the switch elements 31 and 32 and the capacitor 21 are arranged side by side on the same substrate. Therefore, the wiring length between the switch elements 31 and 32 and the input capacitor (or output capacitor) is shortened (specifically, the sections D1 and D2 in FIG. 7 are shortened).
- the inductance and conductor resistance of the loop Llp included in the power supply module 102 are reduced, and the switching noise suppression effect by the input capacitor (or output capacitor) is increased. Therefore, conduction noise from the power supply module to the conductor pattern or the like formed on the substrate 1 is reduced. Further, radiation noise from the power supply module to the outside is reduced. Furthermore, this configuration improves the power conversion efficiency of the power supply module. The improvement of the power conversion efficiency of the power supply module is particularly effective in operation at high frequencies.
- the wiring length of the interlayer connection conductor or the like connecting the first surface PS1 and the second surface PS2 of the substrate 1 can be shortened, so that the conductor resistance can be further reduced.
- the power conversion efficiency of the power supply module can be further improved.
- the switch elements 31 and 32 are arranged at positions where at least a part thereof overlaps the conductor 4 when viewed from the Y-axis direction.
- the conductor 4 formed on the substrate 1 functions as a shield that shields the noise radiated from the switch elements 31 and 32, so that the noise radiated from the power supply module can be suppressed.
- the conductor 4 is formed inside the substrate 1 and the planar shape is a U-shaped (C-shaped) conductor pattern.
- the conductor 4 may be formed on the first surface PS1 of the substrate 1 or may be formed on the second surface PS2 of the substrate 1.
- the planar shape of the conductor 4 can be changed as appropriate within the scope of the effects and effects of the present invention, and may be, for example, a square, a rectangle, a polygon, a circle, an ellipse, an L shape, or a T shape.
- the number of conductors 4 is not limited to one, and a plurality of conductors 4 may be formed on the substrate 1.
- some of the plurality of electronic components are arranged at positions overlapping the inductor 2 when viewed from the Y-axis direction. Can be easily downsized.
- the switch elements 31 and 32 are mounted on the first surface PS1 of the substrate 1, but the switch elements may be incorporated in other electronic components such as the control IC 3.
- the electronic component in which the switch element is incorporated is disposed at a position overlapping the capacitor 21 (at least one of the input capacitor and the output capacitor) when viewed from the Y-axis direction.
- the electronic component in which the switch element is incorporated is disposed at a position overlapping the conductor 4 formed on the substrate 1 when viewed from the Y-axis direction.
- Third Embodiment an example of a power supply module in which a plurality of electronic components are mounted only on the first surface of the substrate is shown.
- FIG. 8A is a front view of the power supply module 103 according to the third embodiment
- FIG. 8B is a left side view of the power supply module 103.
- the first resin member 11 is shown transparent in order to make the structure of the power supply module 103 easier to understand.
- the power supply module 103 has a first point that all of the plurality of electronic components (control IC 3, capacitor 21, switch elements 31, 32, etc.) are mounted only on the first surface PS1 of the substrate 1. Different from the power supply module 101 according to the embodiment.
- the power supply module 103 is different from the power supply module 101 in that the second resin member is not formed on the second surface PS of the substrate 1. Other configurations are substantially the same as those of the power supply module 101.
- an inductor 2 On the first surface PS1 of the substrate 1, an inductor 2, a control IC 3, a capacitor 21 (input capacitor and output capacitor), and switch elements 31 and 32 are mounted.
- the inductor 2, the control IC 3, the capacitor 21 (input capacitor and output capacitor) and the switch elements 31, 32 are embedded in the first resin member 11 formed on the first surface PS1 of the substrate 1.
- the first outer surface VS1 of the power supply module 103 is formed over the side surface SS1 of the substrate 1 and the first resin member 11. As shown in FIG. The second outer surface VS ⁇ b> 2 of the power supply module 103 is formed on the first resin member 11.
- the inductor 2 and the plurality of electronic components are all mounted on the first surface PS1 of the substrate 1 and sealed by the first resin member 11. It may be a configuration.
- the inductor 2 is mounted on the second surface PS2 of the substrate 1 and sealed with the second resin member.
- the configuration is limited to this configuration. It is not a thing.
- the inductor 2 may be mounted on the first surface PS ⁇ b> 1 of the substrate 1 and sealed with the first resin member 11.
- FIG. 9A is a circuit diagram of a power supply module 104A according to the fourth embodiment
- FIG. 9B is a circuit diagram of another power supply module 104B according to the fourth embodiment.
- the inductor L and the switch element Q2 are connected between the terminal electrode P1 and the terminal electrode P6.
- the switch element Q2 is connected between the terminal electrode P6 and the inductor L, and the switch element Q1 is connected between the terminal electrode P2 (ground) and the inductor L.
- the input capacitor Cin is connected between the terminal electrode P1 and the terminal electrode P2 (ground)
- the output capacitor Cout is connected between the terminal electrode P2 and the terminal electrode P2 (ground)
- the control IC 3 includes the switch elements Q1, Q2. Are connected to each.
- the first end of the inductor L is connected to the terminal electrode P1
- the source of the switch element Q2 is connected to the second end of the inductor L
- the drain of the switch element Q2 is connected to the terminal electrode P6.
- the drain of the switch element Q1 is connected to the second end of the inductor L, and the source of the switch element Q1 is connected to the terminal electrode P2 (ground).
- the first end of the input capacitor Cin is connected to the terminal electrode P1
- the second end of the input capacitor Cin is connected to the terminal electrode P2 (ground)
- the first end of the output capacitor Cout is connected to the terminal electrode P6.
- the second end of Cout is connected to the terminal electrode P2 (ground).
- the control IC 3 is connected to the gate and source of the switch elements Q1 and Q2, respectively.
- the power supply module 104A constitutes a step-up DC / DC converter module.
- the switch element Q1 and the switch element Q2 are connected between the terminal electrode P1 and the terminal electrode P6.
- the inductor L is connected between the switch elements Q1, Q2 and the terminal electrode P2 (ground).
- the drain of the switch element Q1 is connected to the terminal electrode P1
- the source of the switch element Q1 is connected to the first end of the inductor L
- the drain of the switch element Q2 is connected to the first end of the inductor L.
- the second end of the inductor L is connected to the terminal electrode P2 (ground), and the source of the switch element Q2 is connected to the terminal electrode P6.
- the control IC 3 is connected to the gate and source of the switch elements Q1 and Q2, respectively.
- the power supply module 104B constitutes a step-up / step-down DC / DC converter module.
- the power supply module of the present invention may constitute not only a step-down DC / DC converter module but also a step-up DC / DC converter module and a step-up / step-down DC / DC converter module. Further, the power supply module of the present invention is not limited to a DC / DC converter module, and may constitute an AC / DC converter module or a DC / AC converter module.
- FIG. 10 is a plan view showing a main part of a power supply device 201 according to the fifth embodiment including the power supply module of the present invention.
- the terminal electrodes Vin, Vout, GND1, GND2, Para, ON / OFF, PWGOOD, Trim, and Sense are indicated by broken lines for easy understanding of the structure.
- the conductor patterns CP1, CP2, CP3, CP4, and CL1 are shown as dot patterns for easy understanding of the structure.
- the power supply device 201 includes a mounting substrate 5 and three power supply modules 101A.
- the power supply module 101A is substantially the same as the power supply module 101 described in the first embodiment.
- the power supply module 101A is different from the power supply module 101 according to the first embodiment in that it includes nine terminal electrodes Vin, Vout, GND1, GND2, Para, ON / OFF, PWGOOD, Trim, and Sense.
- the terminal electrodes Vin, GND1, Para, PWGOOD, ON / OFF, Vout, GND2 are formed on a part of the first outer surface (mounting surface), and in the first direction along the ridge between the first outer surface and the second outer surface ( Are sequentially arranged in the X-axis direction).
- the terminal electrodes Trim and Sense are formed on a part of the first outer surface (mounting surface), and are sequentially arranged in the first direction (X-axis direction) along the ridge between the first outer surface and the second outer surface. .
- the conductor patterns CP1, CP2, CP3, CP4 and CL1 are formed on the mounting substrate 5.
- Five conductor patterns CP 1, CP 2, CP 3, CP 4 and CL 1 are formed on the surface of the mounting substrate 5. All of the five conductor patterns CP1, CP2, CP3, CP4, and CL1 are linear conductor patterns extending in the Y-axis direction, and are arranged in the X-axis direction.
- Conductor patterns CP1, CP2, CP3, and CP4 are conductor patterns for power supply wiring, and a large current flows therethrough. Therefore, the conductor patterns CP1, CP2, CP3, and CP4 have a larger line width than the conductor pattern CL1.
- the conductor pattern CL1 is a conductor pattern for signal wiring.
- the three power supply modules 101 are mounted on the mounting board 5.
- the power supply module 101 is mounted on the mounting substrate 5 via a conductive bonding material such as solder.
- the three power supply modules 101 are arranged in a second direction (Y-axis direction) orthogonal to the first direction (X-axis direction) along the edge of the first outer surface and the second outer surface. Are electrically connected in parallel with each other.
- the terminal electrodes Vin of the three power supply modules 101 are respectively connected in parallel via the conductor pattern CP1, and the terminal electrodes GND1 of the three power supply modules 101 are respectively connected in parallel via the conductor pattern CP2.
- the terminal electrodes Vout of the three power supply modules 101 are connected in parallel via the conductor pattern CP3, and the terminal electrodes GND2 of the three power supply modules 101 are connected in parallel via the conductor pattern CP4.
- the terminal electrodes Para of the three power supply modules 101 are connected in parallel through the conductor pattern CL1.
- FIG. 11 is a plan view showing a main part of a power supply device 200 of a comparative example provided with the power supply module 100.
- terminal electrodes Vin, Vout, GND1, GND2, Para, ON / OFF, PWGOOD, Trim, and Sense are indicated by broken lines for easy understanding of the structure.
- the conductor patterns CP1, CP2, CP3, CP4, and CL1 are shown as dot patterns for easy understanding of the structure.
- the power supply device 200 of the comparative example includes a mounting substrate 5A and three power supply modules 100.
- the power supply module 100 is a power supply module in which a first surface and a second surface on which a plurality of electronic components and inductors are mounted are parallel to a mounting surface in a structure including a substrate having a first surface and a second surface.
- the nine terminal electrodes Vin, Vout, GND1, GND2, Para, ON / OFF, PWGOOD, Trim, Sense of the power supply module 100 are the nine terminal electrodes Vin, Vout, GND1, GND2, Para, ON / OFF of the power supply module 101A. , PWGOOD, Trim, and Sense.
- the conductor patterns CP1A, CP2A, CP3A, CP4A, CL1A and three interlayer connection conductors V1 are formed on the mounting substrate 5A.
- the conductor patterns CP1A, CP2A, CP4A, CL1 are formed on the surface of the mounting substrate 5A.
- the conductor pattern CP3A and the three interlayer connection conductors V1 are formed inside the mounting substrate 5A.
- the conductor pattern CP3A is a conductor pattern formed inside the mounting substrate 3A in relation to other wiring, and is routed to the surface of the mounting substrate 5A via the interlayer connection conductor V1.
- the conductor patterns CP1A, CP2A, CP3A, CP4A, and CL1A are linear conductor patterns that extend in the Y-axis direction, and are arranged in the X-axis direction. As shown in FIG. 11, the three power supply modules 100 are arranged in the second direction (Y-axis direction), mounted on the mounting substrate 5A, and electrically connected in parallel to each other.
- the terminal electrodes Vin of the three power supply modules 100 are connected in parallel via the conductor pattern CP1A, and the terminal electrodes GND1 of the three power supply modules 100 are connected in parallel via the conductor pattern CP2A.
- the terminal electrodes Vout of the three power supply modules 100 are connected in parallel through the conductor pattern CP3A and the three interlayer connection conductors V1, respectively.
- the terminal electrodes GND2 of the three power supply modules 100 are connected in parallel through the conductor pattern CP4A, respectively.
- the terminal electrodes Para of the three power supply modules 100 are connected in parallel via the conductor pattern CL1A.
- the power supply device 201 has the following effects.
- the power supply device 201 has a structure in which three power supply modules 101 are arranged in the second direction (Y-axis direction). Therefore, compared with the case where a power supply module having a structure in which the first surface and the second surface of the substrate are parallel to the mounting surface is mounted on the mounting substrate, the wiring length for connecting a plurality of power supply modules (high conductor resistance) The conductor pattern can be shortened (see the wiring distance G1 in FIG. 10 and the wiring distance G2 in FIG. 11). Therefore, compared with the case where the power supply module having a structure in which the first surface and the second surface of the substrate are parallel to the mounting surface is mounted on the mounting substrate, the power supply device 201 with low loss can be realized.
- the plurality of power supply modules 101A can be connected in parallel to each other by the linear conductor patterns CP1, CP2, CP3, CP4, and CL1. That is, in the present embodiment, the plurality of power supply modules 101A can be connected in parallel to each other by simple wiring. Therefore, according to the present embodiment, it is not necessary to route complicated wiring (for example, the conductor pattern CP3A in FIG. 11) in order to connect the plurality of power supply modules in parallel with each other, and it is easy to connect the plurality of power supply modules. Become.
- the plurality of power supply modules 101A are connected to each other by the conductor patterns CP1, CP2, CP3, CP4, and CL1 extending linearly. That is, since the plurality of power supply modules 101A can be connected in parallel with each other at the shortest distance, the low-loss power supply device 201 can be realized. Further, since the plurality of power supply modules are connected in parallel with each other at the shortest distance, unstable operation of the power supply device due to external noise is suppressed. Furthermore, by connecting a plurality of power supply modules in parallel with each other at the shortest distance, variation in load current between the power supply modules 101A due to the difference in wiring length can be reduced, and the operation stability of the power supply apparatus is improved.
- the power supply device 201 since the power supply device 201 according to the present embodiment uses the power supply module 101A that can be stably mounted, the power supply device 201 can be mounted on the mounting substrate 5 in the reflow process. Therefore, the number of processes is shortened compared with the flow process, and the power supply module 101A can be easily mounted on the mounting substrate 5.
- the power supply module 101A since a plurality of electronic components and inductors are sealed with a resin member (first resin member or second resin member), a plurality of electronic components (or the substrate 1) (or even at a high temperature during reflow) The connection part of the inductor) by solder or the like is protected.
- the resin member (first resin member or second resin member) and the substrate 1 are bonded by bonding between the resins, Electronic parts and inductors do not fall off, and after cooling, the joined state of the joined part by solder or the like returns to normal.
- the present invention is not limited to this configuration.
- the number of power supply modules can be changed as appropriate.
- planar shape of the substrate 1 is rectangular has been described, but the present invention is not limited to this configuration.
- the planar shape of the substrate 1 can be changed as appropriate within the scope of the function and effect of the present invention, and may be, for example, circular, elliptical, polygonal, L-shaped, T-shaped, Y-shaped, or the like.
- the rectangular parallelepiped power supply module is shown, but the present invention is not limited to this configuration.
- the shape of the power supply module can be changed as appropriate within the range where the functions and effects of the present invention are achieved.
- the surface other than the mounting surface (first outer surface VS1) of the power supply module is not limited to a flat surface, and may be a curved surface or the like.
- the power supply module including the control IC 3, the capacitor 21 (input capacitor and output capacitor), the switch elements 31 and 32, and the inductor 2 is shown.
- the power supply module includes other electronic components. It does not have to be provided.
- the plurality of electronic components may include, for example, a power inductor, a choke coil, a transformer, and the like.
- the number, type, arrangement, and the like of the plurality of electronic components provided in the power supply module can be changed as appropriate within the scope of the operations and effects of the present invention.
- the plurality of electronic components may be mounted on any one of the first surface PS1 and the second surface PS2 of the substrate 1.
- the switch elements 31 and 32 are different from the surface on which the capacitor 21 (input capacitor and output capacitor) is mounted on the first surface PS1 or the second surface PS2. It is preferable to be mounted.
- terminal electrodes P1, P2, P3, P4, P5, and P6 are formed from a part of the first outer surface VS1 to a part of the second outer surface VS2, and the first outer surface VS1 and
- the configuration example exposed to the second outer surface VS2 has been described, it is not limited to this.
- the terminal electrode only needs to be exposed to at least the first outer surface VS1.
- the six terminal electrodes P1, P2, P3, P4, P5, and P6 are arranged in the first direction (X-axis direction) along the ridge between the first outer surface VS1 and the second outer surface VS2.
- the present invention is not limited to this configuration.
- the terminal electrode is not limited to a rectangular parallelepiped metal block, and may be an elliptical column shape, a polygonal column shape, or the like.
- Control IC 4 Conductor 5, 5A ... Mounting substrate 11 ... First resin member 12 . Second resin member 21 ... Capacitor (input capacitor and output capacitor) 31, 32 ... Switch elements 100, 101, 102, 103 ... Power supply modules 200, 201 ... Power supply device
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Abstract
Description
第1外面と、前記第1外面に隣接し、前記第1外面に直交する第2外面と、を備えるものであって、
第1面および側面を有する基板と、
少なくとも前記第1面に搭載される複数の電子部品と、
前記第1面に形成され、前記第1面に搭載される前記電子部品を封止する第1樹脂部材と、
少なくとも前記第1外面に露出する端子電極と、
を備え、
前記基板は、前記第1面が前記第1外面に直交し、
前記第1外面は、少なくとも前記基板の前記側面および前記第1樹脂部材にわたって形成され、
前記第1外面の面積は、前記第2外面の面積よりも小さいことを特徴とする。
実装基板と、
第1外面と、前記第1外面に隣接し、前記第1外面に直交する第2外面と、を備える複数の電源モジュールと、
を備え、
前記複数の電源モジュールのそれぞれは、
第1面および第2面を有する基板と、
少なくとも前記第1面に搭載される複数の電子部品と、
前記第1面に形成され、前記第1面に搭載される前記電子部品を封止する第1樹脂部材と、
少なくとも前記第1外面に露出する端子電極と、
を備え、
前記基板は、前記第1面が前記第1外面に直交し、
前記第1外面は、少なくとも前記基板の前記側面および前記第1樹脂部材にわたって形成され、
前記第1外面の面積は、前記第2外面の面積よりも小さく、
前記複数の電源モジュールは、前記第1外面と前記第2外面との稜に沿う第1方向に対して直交する第2方向に配列されて前記実装基板に実装され、電気的に互いに並列に接続されることを特徴とする。
図1(A)は第1の実施形態に係る電源モジュール101の斜視図であり、図1(B)は電源モジュール101を別の視点から視た斜視図である。図2(A)は、電源モジュール101の内部構造を示す斜視図であり、図2(B)は電源モジュール101の正面図である。図3(A)は電源モジュール101の左側面図であり、図3(B)は電源モジュール101の右側面図である。
第2の実施形態では、基板1の第2面PS2にインダクタ以外にも電子部品が搭載された電源モジュールの例を示す。
第3の実施形態では、基板の第1面にのみ複数の電子部品が搭載される電源モジュールの例を示す。
第4の実施形態では、降圧型DC/DCコンバータモジュール以外の電源モジュールの例を示す。
第5の実施形態では3つの電源モジュール101を備える電源装置について示す。
以上に示した各実施形態では、基板1の平面形状が矩形である例を示したが、この構成に限定されるものではない。基板1の平面形状は本発明の作用・効果を奏する範囲において適宜変更可能であり、例えば円形、楕円形、多角形、L字形、T字形、Y字形等であってもよい。また、以上に示した第1・第2・第3の各実施形態では、直方体状の電源モジュールを示したが、この構成に限定されるものではない。電源モジュールの形状は本発明の作用・効果を奏する範囲において適宜変更可能である。また、電源モジュールの実装面(第1外面VS1)以外の面は、平面に限定されるものではなく、曲面等であってもよい。
Cout…出力コンデンサ
L…インダクタ
Q1,Q2…スイッチ素子
D1,D2…区間
Llp…ループ
P1,P2,P3,P4,P5,P6,Vin,Vout,GND1,GND2,ON/OFF,Trim,Sense,PWGOOD,Para…端子電極
PS1…基板の第1面
PS2…基板の第2面
VS1…第1外面
VS2…第2外面
VS3…第3外面
CP1,CP1A,CP2,CP2A,CP3,CP3A,CP4,CP4A,CL1,CL1A…導体パターン
G1,G2…配線距離
1…基板
2…インダクタ
3…制御IC
4…導体
5,5A…実装基板
11…第1樹脂部材
12…第2樹脂部材
21…コンデンサ(入力コンデンサおよび出力コンデンサ)
31,32…スイッチ素子
100,101,102,103…電源モジュール
200,201…電源装置
Claims (11)
- 第1外面と、前記第1外面に隣接し、前記第1外面に直交する第2外面と、を備える電源モジュールであって、
第1面および側面を有する基板と、
少なくとも前記第1面に搭載される複数の電子部品と、
前記第1面に形成され、前記第1面に搭載される前記電子部品を封止する第1樹脂部材と、
少なくとも前記第1外面に露出する端子電極と、
を備え、
前記基板は、前記第1面が前記第1外面に直交し、
前記第1外面は、少なくとも前記基板の前記側面および前記第1樹脂部材にわたって形成され、
前記第1外面の面積は、前記第2外面の面積よりも小さい、電源モジュール。 - 前記基板は、前記第1面に対向し、前記第1外面に直交する第2面をさらに有し、
前記複数の電子部品のいくつかは、前記第2面に搭載され、
前記第2面に形成され、前記第2面に搭載される前記電子部品を封止する第2樹脂部材をさらに備え、
前記第1外面は、前記第2樹脂部材をさらに含んで形成される、請求項1に記載の電源モジュール。 - 前記第1面または前記第2面に搭載され、前記第1樹脂部材または前記第2樹脂部材に封止されるインダクタを備え、
前記複数の電子部品のいくつかは、前記第1面または前記第2面を平面視して、前記インダクタに重なる位置に配置される、請求項2に記載の電源モジュール。 - 前記複数の電子部品は、入力部に接続された入力コンデンサと、出力部に接続された出力コンデンサと、前記インダクタと前記入力コンデンサとの間または前記インダクタと前記出力コンデンサとの間のいずれかに接続され、前記インダクタに流れる電流をスイッチングするスイッチ素子と、を含み、
前記入力コンデンサおよび前記出力コンデンサは、前記第1面または前記第2面のうちいずれか一方の面に搭載され、
前記スイッチ素子は、前記第1面または前記第2面のうち前記入力コンデンサおよび前記出力コンデンサが搭載された面とは異なる面に搭載される、請求項3に記載の電源モジュール。 - 前記複数の電子部品は、入力部に接続された入力コンデンサと、出力部に接続された出力コンデンサと、前記インダクタと前記入力コンデンサとの間および前記インダクタと前記出力コンデンサとの間にそれぞれ接続され、前記インダクタに流れる電流をスイッチングするスイッチ素子と、を含み、
前記入力コンデンサおよび前記出力コンデンサは、前記第1面または前記第2面のうちいずれか一方の面に搭載され、
前記スイッチ素子は、前記第1面または前記第2面のうち前記入力コンデンサおよび前記出力コンデンサが搭載された面とは異なる面に搭載される、請求項3に記載の電源モジュール。 - 前記スイッチ素子は、前記第1面または前記第2面を平面視して、少なくとも一部が前記入力コンデンサまたは前記出力コンデンサの少なくとも一方に重なる位置に配置される、請求項4または5に記載の電源モジュール。
- 前記基板に形成される導体を備え、
前記スイッチ素子は、前記第1面または前記第2面を平面視して、少なくとも一部が前記導体に重なる位置に配置される、請求項4から6のいずれかに記載の電源モジュール。 - 前記端子電極は、前記第1外面の一部から前記第2外面の一部にわたって形成される、請求項1から7のいずれかに記載の電源モジュール。
- 前記端子電極の数は複数であり、
複数の前記端子電極は、前記第1外面と前記第2外面との稜に沿った第1方向に配列される、請求項1から8のいずれかに記載の電源モジュール。 - 実装基板と、
第1外面と、前記第1外面に隣接し、前記第1外面に直交する第2外面と、を備える複数の電源モジュールと、
を備え、
前記複数の電源モジュールのそれぞれは、
第1面および側面を有する基板と、
少なくとも前記第1面に搭載される複数の電子部品と、
前記第1面に形成され、前記第1面に搭載される前記電子部品を封止する第1樹脂部材と、
少なくとも前記第1外面に露出する端子電極と、
を備え、
前記基板は、前記第1面が前記第1外面に直交し、
前記第1外面は、少なくとも前記基板の前記側面および前記第1樹脂部材にわたって形成され、
前記第1外面の面積は、前記第2外面の面積よりも小さく、
前記複数の電源モジュールは、前記第1外面と前記第2外面との稜に沿う第1方向に対して直交する第2方向に配列されて前記実装基板に実装され、電気的に互いに並列に接続される、電源装置。 - 前記複数の電源モジュールは、はんだを介して前記実装基板に実装される、請求項10に記載の電源装置。
Priority Applications (4)
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| JP2018513076A JP6583545B2 (ja) | 2016-04-21 | 2017-03-23 | 電源モジュールおよび電源装置 |
| EP17785726.5A EP3432458B1 (en) | 2016-04-21 | 2017-03-23 | Power supply module and power supply device |
| CN201780024709.7A CN109075706A (zh) | 2016-04-21 | 2017-03-23 | 电源模块以及电源装置 |
| US16/143,509 US10602614B2 (en) | 2016-04-21 | 2018-09-27 | Power supply module and power supply device |
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| JP2016084990 | 2016-04-21 | ||
| JP2016-084990 | 2016-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| US16/143,509 Continuation US10602614B2 (en) | 2016-04-21 | 2018-09-27 | Power supply module and power supply device |
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| WO2017183384A1 true WO2017183384A1 (ja) | 2017-10-26 |
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| Country | Link |
|---|---|
| US (1) | US10602614B2 (ja) |
| EP (1) | EP3432458B1 (ja) |
| JP (1) | JP6583545B2 (ja) |
| CN (1) | CN109075706A (ja) |
| WO (1) | WO2017183384A1 (ja) |
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| CN110139477A (zh) * | 2018-02-09 | 2019-08-16 | 台达电子企业管理(上海)有限公司 | 应用于智能终端的电源模块及电源模块组装结构 |
| CN111902690A (zh) * | 2018-01-22 | 2020-11-06 | 美蓓亚三美株式会社 | 传感器模组 |
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| US11375607B2 (en) * | 2019-03-28 | 2022-06-28 | Apple Inc. | Mirrored voltage regulator for high-current applications and method the same |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP3432458A1 (en) | 2019-01-23 |
| JP6583545B2 (ja) | 2019-10-02 |
| EP3432458B1 (en) | 2021-07-28 |
| US10602614B2 (en) | 2020-03-24 |
| JPWO2017183384A1 (ja) | 2018-12-13 |
| US20190037700A1 (en) | 2019-01-31 |
| CN109075706A (zh) | 2018-12-21 |
| EP3432458A4 (en) | 2019-10-09 |
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