TW201228175A - Multiple power supply device - Google Patents

Abstract

A multiple power supply device including a power unit, a plurality of power supply units and a plurality of switching units is provided. The power unit receives a plurality of power good signals and outputs a plurality of power control signals accordingly to the power good signals. The power supply units outputs a plurality of work voltages respectively. In the meanwhile, the power supply units outputs the power good signals respectively. When the power unit is work and one of the power good signals is enabling, the power unit enables the corresponding power control signal. When the power unit is work and a part of the power good signals are enabling, the power unit enables one of the power control signal corresponding the enabled power good signals. The switching units transmits the corresponding work voltage to the power unit.

Description

201228175 1UU&12.1W 35782twf.doc/I VI. Description of the Invention: [Technical Field] The present invention relates to a power supply device, and more particularly to a multi-power supply device. [Prior Art] Since the programmable chip has flexibility in programming adjustment, it is widely used in the design of the server system, such as a programmable programmable logic device (CPLD), Field programmable gate array (FPGA), etc. In traditional designs, the power to the programmable chip is stable and unique. However, as the complexity of the system increases, the programmable chip may have multiple power supplies, and it is necessary to select among multiple power supplies and switch one as the power supply. SUMMARY OF THE INVENTION The present invention provides a multi-power supply device that automatically selects an operating voltage output by a plurality of power supply units. The invention provides a multi-power supply device comprising an electric power unit, a plurality of power supply units and a plurality of switch units. The power unit has a power terminal and a plurality of detection terminals. The detection terminals respectively receive a plurality of power-good signals, and the power unit outputs a plurality of power control signals according to the power-good signals. The power supply units are respectively configured to output a plurality of operating voltages, and the power supply units respectively output the power supplies when outputting the operating voltage. 201228175

100612.TW 35782twf.doc/I signal. The switch units are coupled to the power units and respectively coupled to the power supply units. When the power unit is in the power supply state, these power-good signals are - when enabled, the power supply unit (4) should use the power control signal. These switch units transmit the corresponding working voltage to the power unit according to the power control signal. When the power unit is in operation and part of these power-good signals are enabled, the power-on unit enables one of the power control signals corresponding to the enabled power source.

The element transmits the corresponding working voltage to the power unit according to the enabled power control signal. In the embodiment of the present invention, when the electric power unit is not activated and the power supply unit has the output I as the electric material, the switch single tL receiving the servo voltage outputs the starting voltage to the electric power unit. The phase power unit is not activated and some of the power supply units are powered by (4) some of the working powers, and (4) of the switching materials of the working voltages - the output starting voltage is applied to the power unit 0. The switch unit includes a switch and a body. The first end of the switch is coupled to the corresponding power supply unit, and the ^- terminal of the switch uses the power supply end of the power supply unit, and the control end of the switch receives the corresponding power control signal. The diode forward _ is connected between the first end and the first end of the switch. When the power unit is not activated and the operating voltages of the power supply units 1 are out, the corresponding diodes of the switching units are forwarded, and a starting voltage is output according to the operating voltage and transmitted to the power supply end of the power unit. Use the electric unit to start working. When the power unit is started and the power supply unit outputs these operating voltages, this is opened 201228175

Ιυυοιζ.ι W 35782twf.doc/I The first of these diodes in the unit is the first to receive the operating voltage, and the output voltage is output according to the received operating voltage and transmitted to Start to enter the working state by using the electric unit. When the power unit is in operation and one of the power-good signals is enabled, the corresponding power control signal is enabled to turn on the corresponding switch of the switch units, and the operating voltage is supplied through the turned-on switch. The power terminal of the electrical unit. When the power unit is in the state of the state and part of the power-good signal is enabled, the power control signals are correspondingly enabled - 'to turn on the corresponding switches of the switch unit towels, and the jade is turned on through the switch The voltage is supplied to the power supply terminal of the power unit. In the embodiment of the invention, when the power unit is not activated, these power ready signals are all disabled and all of the switches are open. In one embodiment of the invention, all of the other diodes are worn when the diodes are turned on. One of the switches having the above-mentioned starting voltage is less than the operating voltage, respectively, is one of the switches in one embodiment of the invention. In one embodiment of the invention a PMOS transistor. In one embodiment of the invention, a plurality of power supplies are provided. In one embodiment of the invention, it is a plurality of power converters. The above-mentioned power supply units are divided into the above-mentioned power supply units. In the embodiment of the present invention, the above-mentioned sheets and the above-mentioned electric power elements are complex programmable logic devices.

201228175 100612.TW 35782twf.doc/I Shield array. Based on the above, in the multi-power supply device of the present invention, the power unit automatically selects the operating voltage output by one of the power supply units in accordance with the power supply ready signal. Before the power unit is started, one of the switching units generates a starting voltage according to an operating voltage that is turned on by the power supply unit and transmits it to the power unit. The above described features and advantages of the present invention will become more apparent from the description of the appended claims. [Embodiment] At present, due to the increasing complexity of the system, a system that may be shared by multiple motherboards is used, so that the programmable chip = the system to be selected and switched over in the evening voltage In the case of using two motherboards that can be edited, since these motherboards may be forced to use: and the motherboard that is turned on is not fixed, therefore: Design: seeking: in any - block The voltage of the motherboard of the motherboard is: 2: (4) corresponding to one of the working sounds 1. According to the system of the present invention - the multi-power supply device, the plurality of power supply units are called:: a wide switch unit - 1 ,",.,. Among them, use =

201228175 100612.TW 35782twf.doc/I 110 can be a programmable chip, and can be (CPLD) or field programmable gate array (_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ : The unit should output the power ready signal (such as PGm, ·.= 'and etc.) at the output voltage, and the voltages of f GD2, ··· - 11Λ of the voltages VI, V2, etc. will be approximately the same.兀110 has a power supply Pw chat, traces, etc.) and multiple outputs (such as two power supply PWD to receive the working voltage vcc = work. Side PD1, PD2, .. · Rong Bayi system earlier 110 PGDi, PGD2, ..., etc., while the power meter 4 = receiving power ready signal brain, .GD2, ..., etc. respectively output: ° 〇:: source = multiple power control signals (such as PCU, pcu, .. . . . ) to open the power unit (10), and the power supply unit 120-1, 120-2, ..., etc. * Power | το 110 in the I state and these power ready signals PGD1, PGD2, ... When one of them is enabled, the power supply control signal (such as pCLl, pCL2, ..., etc.) corresponding to the month b is generated by the electric unit, and the switch is 7L 130-; 130, 2, ..., etc., according to the enabled power control signals (such as PCL1, PCL2, ..., etc.) to transfer the corresponding voltage (such as V1, V2, ..., etc.) to the power unit 110' as the power unit 11 The operating voltage VCC of (), wherein the operating voltage VCC is approximately equal to the voltage V1 or V2. When the power unit 110 is in operation and part of the power-good signals pGD1, pGD2, ..., etc. are enabled, the power unit U0 Enable the power control signals corresponding to the above-mentioned enabled power-good signals (such as PGD1, PGD2, . . . , etc.) (eg

One of 201228175 100612.TW 35782twf.doc/I PCL1, PCL2, ..., etc.), the switching unit 13〇_Bu 13〇_2, ..., etc. are based on the enabled power control signals (such as PCL1, PCL2) ...etc.) Transfer the corresponding voltage (such as VI, V2, ..., etc.) to the power unit 110 as the operating voltage VCC of the power unit 11A. For example, when the power unit 110 is in operation and the power supply unit 120-1 outputs the voltage VI, the power ready signal PGD1 is enabled. At this time, the power unit 110 enables the power control signal pcL1, and the switch unit 130_1 transmits the voltage vi to the power terminal PWD of the power unit 110 according to the enabled power control signal PCL1 to work as the power unit 110. Voltage VCC. When the power unit 11 is in operation and the power supply units 120_1 and 120-2 respectively output the voltages VI and V2, the power-good signals PGD1 and PGD2 are enabled. At this time, the power supply unit no enables one of the power control signals PCL1 and PCL2, so that one of the switch units 130_1 and 130-2 will apply voltage according to the enabled power control signal (PCL1 or PCL2) (VI) Or V2) is transmitted to the power terminal PWD of the power unit 110 to serve as the operating voltage VCC of the power unit 11A. In addition, when the power unit 110 is not activated and one of the power supply units uoj, 120-2, ..., etc. outputs a voltage (such as V Bu V2, ..., etc.), a voltage is received (eg, ΛΠ, V2, ..., etc.) The switching unit (such as no", 130-2, ..., etc.) outputs the starting voltage VST according to the received voltage (such as VI, V2, ..., etc.) and transmits it to the power unit 11〇 for startup. Electrical unit 110. When the power unit 110 is not activated and part of the power supply unit 120-1, 120-2, ..., etc. output voltage (such as v Bu V2, ..., etc.), 201228175

100612.TW 35782twf.doc/I One of the switching units (such as uo+i, 130-2, ..., etc.) that receives a voltage (such as VBu V2, ..., etc.) will depend on the received voltage ( The startup voltage VST is output as the VI, V2, ..., etc., and is transmitted to the power consumption unit 110 to activate the power consumption unit 110. Wherein, the starting voltage VST is smaller than the operating voltage VCC. For example, when the power unit 110 is not activated and the power supply unit 12 turns off the standby voltage VI, the switch unit 130_1 outputs the startup voltage according to the machine voltage VI and transmits it to the power terminal PWD of the power unit 11〇. 'To start the power unit u〇. When the power unit 11() is not activated and the power supply units 12〇_1 and 120_2 respectively output the voltages VI and V2, one of the switch units 130_1 and 13〇_2 is activated according to the voltage (VI or V2) output. The voltage VST is transmitted to the power terminal PWD of the power unit 11A to activate the power unit 11A, and the other switch unit does not operate. Fig. 2 is a circuit diagram of a multi-supply power supply device in accordance with an embodiment of the present invention. Referring to FIG. 2 and FIG. 2, in the present embodiment, the power supply units 120-1, 120-2, ..., etc. are exemplified by power supplies 120J, 120_2, ..., etc. 'But in other embodiments, power supply The unit can be a power converter. And the switch unit 130_1 includes the transistor M1 and the diode m, the switch unit 130-2 includes the transistor M2 and the diode D2, and the rest of the switch unit 70 has the same structure as the switch units 130_1 and 130_2, and will not be described herein. . The transistors M1, M2, ..., etc. are exemplified herein as PMOS transistors, and each transistor can be regarded as a switch. The source (ie, the first end) of the transistor M1 is coupled to the power supply 120_1 to receive the voltage VI 'the drain of the transistor M1 (ie, the second end) is coupled to the power 201228175 100612.TW 35782twf.doc/I unit 110 The power terminal F\VD outputs the working voltage to the power terminal PWD' of the power supply unit 110. The power supply control signal PCL1 (the control power supply control signal PCL1. The diode D1 forward _ the electricity (four) M1 recording and source The anode of the diode D1 is connected to the source of the transistor M1, and the cathode of the diode D1 is coupled to the drain of the transistor. The source of the transistor M2 is coupled to the power supply 12〇2 The gate of the transistor M2 receives the power supply control signal PCL2 by the power supply terminal pwD of the receiving voltage V2' of the transistor M2 coupled to the power supply terminal pwD. The diode 〇2 is coupled in the forward direction between the drain and the source of the transistor M2, that is, the anode of the diode D2 is coupled to the source of the transistor M2, and the cathode of the diode D2 is coupled to the transistor M2. Bungee jumping. The rest are deduced by analogy, and will not be described here. When the power supplies 120_1, 120_2, ..., etc. are not turned on, On behalf of all the motherboards are not turned on. At this time, the power supply 12〇i, 120-2, ..., etc. can not provide the voltage V: l, V2, ..., etc., and the power supply; eu φ signal PGD1, PGD2, ..., etc. Will be disabled (for example, low voltage level), so that the transistors Ml, M2, ..., etc. will appear non-conducting (that is, equivalent to the switch is off) and the diodes D1, D2, ... will be worn. The voltages VI, V2, ..., etc. cannot be transmitted to the power supply terminal pwD of the power consumption unit 110 as the operating voltage VCC, and the diodes D1, D2, ..., etc. cannot generate the startup voltage VST according to the voltage Vb, V2, etc., Therefore, the power unit 110 is in an unactivated state. When one of the power supplies 120J, 120_2, ..., etc. is turned on, it indicates that the corresponding motherboard is turned on. It is assumed that the power supply is turned on.

201228175 100612.TW 35782twf.doc/I indicates that the corresponding motherboard is turned on. Assuming that the powered power supply is the power supply 120-1, the power supply will provide a voltage Vb and the power ready signal PGD1 will be enabled (e.g., at a high voltage level). At this time, the diode D1 will receive the forward bias and pass the conduction, and the voltage vi will be lowered to a threshold voltage and then transmitted to the power terminal PWD of the power unit 11〇 as the starting voltage VST, that is, the diode. D1 will output a starting voltage VST according to the voltage VI, wherein the starting voltage VST will be less than the voltage Vl. Before the power supply terminal PWD of the power consumption unit 110 receives the startup voltage VST or the operation VCC, the power unit 11 呈现 will assume an unactivated state. Therefore, the output terminals 01, 02, ..., etc. will assume a floating state. Since the gates of the transistors M2, . . . , etc. do not receive any voltage, the transistors M1, Μ 2, ..., etc. may exhibit non-conduction (equivalent to the switch being turned off). After the power supply terminal PWD of the power unit 110 receives the startup voltage ^st, the power unit 110 is in an active state. Since the power supply is ready l^PGD1 is enabled, the power supply unit 11 致 enables the power control signal pcu ′ to switch the power control signal pcu from the high voltage level to the low voltage level. At this time, the voltage of the gate of the transistor M1 is much smaller than the voltage of the source of the germanium transistor M1, so that the transistor M1 is turned on, and the voltage VI is transmitted to the power generating unit 11G__pwD as the operating voltage VCC 'where the operating voltage is Vcc will be approximately equal to voltage V1. Also, since the operating voltage VCC is approximately equal to the voltage V, the diode D1 is turned off due to insufficient forward bias. On the other hand, when two or more of the power supplies 12〇_1, 12〇_2, ..., etc. are turned on, it means that the corresponding motherboard is turned on. Assume that the 12 is open 201228175

100612.TW 35782twf.doc/I The power supply is the power supply 12〇_1 and 120_2, then the power supply 120_1 will supply the voltage. The power supply 12〇2 will provide the standby voltage V2, and the power ready signal PGdi And PGD2 will be enabled. At this time, the diodes D1 and D2 will receive the forward bias 'and the first one of the diodes D1 and D2 receives the voltage (V1 or V2) will be turned on first, and the starting voltage is output according to the voltage (VI or V2). The VST is connected to the power terminal PWD of the power unit 11〇, and the other diode is turned off. Since the diodes D1 and φ D2 are forward-conducting elements, the power supply 1 and 120-2 can be prevented from communicating with each other to avoid a situation in which the power supply is back-filled or unbalanced. Assuming that the turned-on diode is the diode D2, the diode 〇2 generates the startup voltage VST according to the voltage V2 and transmits it to the power supply terminal PWD of the power unit 11A. Before the power supply terminal PWD of the power consumption unit 110 receives the startup voltage VST and the operating voltage VCC, the power unit 11 〇 is in an unactivated state, so the output terminals 01, 02, ... and the like are in a floating state. Since the gates of the transistors M1, M2, ..., etc. do not receive any voltage, the transistors M1, M2, ..., etc. may be rendered non-conductive. After receiving the startup voltage VST at the power terminal PWD of the power unit HQ, the power unit u〇 will be in a working state. Since the power-good signals PGdi and pgd2 are enabled, the power unit 110 enables the power control signals pcu and PCL2, wherein the selection may be sequential or random, which may be designed by a person skilled in the art. And the invention is not limited thereto. It is assumed here that the power supply control signal PCL2 is enabled, the transistor m2 is turned on, and the voltage V2 is transmitted to the power unit_electrical; (4) pw^ 13

201228175 100612.TW 35782twf.doc/I is the operating voltage VCC, where the operating voltage vcc will be approximately equal to the voltage V2. Also, since the operating voltage VCC is approximately equal to the voltage V2, the diodes D1 and D2 are turned off due to insufficient forward bias. In summary, the multi-supply power supply device of the embodiment of the present invention, before the operation of the power unit, the diode that receives the voltage is turned on, and outputs the startup voltage to the power unit through the turned-on diode to activate the power. unit. When the power unit is in operation, the power unit can automatically select the received voltage as the operating voltage according to the power supply ready signal of the power supply. And because of the extremely long (four) conduction components, the power supply can be avoided and the power supply backflow or imbalance can be avoided. X Ming has been exposed as described above, but it is not intended to limit the scope of protection of the invention. It is attached as a matter of fact. [Simplified illustration of the drawing] FIG. 1 is a schematic diagram of a system of a power supply according to the present invention. . The power supply of the column is connected to the power supply I. The schematic diagram is the circuit of the multi-supply supply according to the embodiment of the present invention. [Main component symbol description] 1〇〇: Multi-supply power supply unit u〇: Power unit 201228175

100612.TW 35782twf.doc/I 130-1, 130_2: Switch unit D1, D2: diode

Ml, M2: Transistor 01, 02: Output PCU, PCL2: Power control signal PD1, PD2: Detection terminal PGD1, PGD2: Power ready signal PWD: Power supply terminal VCC: Operating voltage VI, V2: Voltage VST: Starting voltage

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Claims (1)

201228175 ιυυοχ-ί.ι W 35782twf.doc/I VII. Patent application scope: 1. A multi-power supply device, comprising: a power unit having a power terminal and a plurality of detection terminals, the detection terminals respectively Receiving a plurality of power supply ready signals, the power consumption unit outputs a plurality of power supply control signals according to the power supply ready signals; the plurality of power supply units ' are configured to respectively output a plurality of working voltages, and the power supply units output the work And outputting the power supply ready signals correspondingly to the voltage; and a plurality of switch units, engaging the power unit, and respectively respectively connecting the power supply units; wherein, when the power unit is in operation and the power sources are ready Letter: The tiger is one of them - when it is enabled, 'the power supply unit is enabled to correspond to the power control signal', and the open source is controlled by the t source control letter to send the corresponding work, press to the power unit, when When the power unit is in operation and part of the "power" ready signal is enabled, the power source can enable the above-mentioned power, the power source corresponding to the ready signal. One signal is produced, the switches operating unit according to the enable control signal corresponding to the voltage of the power supply to the power unit ❶. 2. The multi-supply power supply device of claim 1, wherein the power receiving unit is not activated and one of the Wei supply units outputs a voltage. The unit outputs a starting power unit, so that the power unit starts into a working state, and when the power transmission unit outputs the work, the switch receives the working voltage. One of the units 201228175 100612.TW 35782twf.docA outputs the starting voltage to the power unit. 3. The multi-power supply device according to claim 2, wherein each of the switch units comprises: /, a switch, the first end of the switch is coupled to a corresponding power supply unit, and the switch is second Connected to the power terminal of the power unit, the switch terminal receives a corresponding power control signal; and the upper y diode is coupled to the first end and the second end of the switch, respectively; When the power unit is not activated and the power supply units output the operating voltage, the corresponding diode members of the switch units are turned on, and the starting voltage is output according to the operating voltage and transmitted to the ^ The power supply end of the electric power is used to enable the electric power material to be put into a working state. 'While the f unit is not activated and some of the electric secret cells output the working voltage, the some of the switch unit towels In the diode, the first receiving = voltage is turned on, and the two-way voltage is output according to the received servo voltage and transmitted to the power terminal of the power unit to make the power enter the working state. When the power unit is in the I state When the ready signal is enabled, the corresponding power supply is controlled to be 2% to turn on the corresponding switch of the switch units, and the red voltage is transmitted to the power supply end of the power supply unit through the guide. When the 1 unit is in the working state and part of the power supply ready signals are the same: the second one correspondingly enables one of the power control signals to guide the corresponding one of the switch units, and the through switch The switch transmits the operating voltage to the power terminal of the power unit. 17 201228175 100612.TW 35782twf.doc/I 4. The multiple power supply device according to claim 3, wherein when the power unit is not activated, the power ready signals are all disabled, and the switches are all disconnect. 5. The multi-supply power supply device of claim 3, wherein when one of the diodes is turned on, all of the other diodes are turned off. 6. The multiple power supply device of claim 3, wherein the switches are each a PMOS transistor. 7. The multi-supply power supply device of claim 2, wherein the starting voltage is less than the operating voltage. 8. The multiple power supply device of claim 1, wherein the power supply units are respectively a plurality of power supplies. 9. The multiple power supply device of claim 5, wherein the power supply units are respectively a plurality of power converters. 10. The multiple power supply device of claim 1, wherein the power unit is a programmable chip, and the power unit is a complex programmable logic device or a programmable gate array.