CN103729048A - Power supply circuit for computer - Google Patents
Power supply circuit for computer Download PDFInfo
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- CN103729048A CN103729048A CN201310586701.3A CN201310586701A CN103729048A CN 103729048 A CN103729048 A CN 103729048A CN 201310586701 A CN201310586701 A CN 201310586701A CN 103729048 A CN103729048 A CN 103729048A
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- resistance
- power supply
- computer
- triode
- ground
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- 239000003990 capacitor Substances 0.000 claims abstract description 10
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 4
- 229920005591 polysilicon Polymers 0.000 claims description 4
- 230000010354 integration Effects 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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Abstract
The invention discloses a power supply circuit for a computer. The power supply circuit comprises an inductor and an audion. The inductor is connected with a collector of the audion through a resistor R1. A base of the audion is connected to the ground through the resistor R3 which is connected in parallel to a capacitor C1. An emitter of the audion is connected to the ground through a resistor R4. The common end of the inductor and the resistor R1 is connected to an anode of a diode. A cathode of the diode is connected to the ground through a resistor R2 which is connected in parallel with a capacitor C2. The power supply circuit has the advantages of being simple in structure and suitable for power supply miniaturization integration, a power supply is stable, and guarantee can be provided for computer stable operation.
Description
Technical field
The present invention relates to power circuit field, relate in particular a kind of power circuit for computer.
Background technology
Computer, i.e. computing machine, is that one can be moved according to program, automatically, the modernization intelligent electronic device of high speed processing mass data.Due to the progress of technology, computer is more and more universal.Power supply is very important to computer, and the power-supply system of computer has not only needed charging to control, and has also needed the step-down processing to power supplies such as microprocessor and hard disks, and the tributary exchange conversion to screen power supply etc.This just requires all functions of power supply all in less volume, to complete as far as possible, and therefore, miniaturization is the main development direction of power supply.
Summary of the invention
The invention provides a kind of power circuit for computer, its circuit structure is simple, and the miniaturization that is applicable to power supply is integrated, and power supply is stable, can be computer stable operation and provides safeguard.
For solving above-mentioned technical matters, the present invention by the following technical solutions:
A kind of power circuit for computer, it comprises inductance and triode, described inductance is connected with the collector of triode by resistance R 1, the base stage of described triode is connected to the ground by resistance R 3, in described resistance R 3, be parallel with capacitor C 1, the emitter of described triode is connected to the ground by resistance R 4, and the common port of described inductance and resistance R 1 is connected on the anode of diode, the negative electrode of described diode is connected to the ground by resistance R 2, in described resistance R 2, is parallel with capacitor C 2.
Further technical scheme is:
As preferably, described resistance R 1, resistance R 2, resistance R 3 and resistance R 4 are polysilicon resistance.
Further, the resistance of described resistance R 1 or resistance R 4 is not more than the resistance of resistance R 2.
Further, the resistance of described resistance R 3 is less than the resistance of resistance R 4.
Compared with prior art, the invention has the beneficial effects as follows:
1, the present invention utilizes triode and peripheral circuit to form booster circuit, and its circuit structure is simple, meets the developing direction of miniaturization, is applicable to miniaturization integrated.
2, output voltage stabilization of the present invention, can be computer stable operation and provides safeguard.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is circuit theory diagrams of the present invention.
Label in figure is: 1, port A; 2, port B; 3, port C.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.Embodiments of the present invention include but not limited to the following example.
[embodiment]
A kind of power circuit for computer as shown in Figure 1, it comprises inductance and triode, described inductance is connected with the collector of triode by resistance R 1, the base stage of described triode is connected to the ground by resistance R 3, in described resistance R 3, be parallel with capacitor C 1, the emitter of described triode is connected to the ground by resistance R 4, the common port of described inductance and resistance R 1 is connected on the anode of diode, the negative electrode of described diode is connected to the ground by resistance R 2, in described resistance R 2, is parallel with capacitor C 2.In the present invention, port A1 is input port, i.e. one end of inductance; Port B2 is output port, i.e. the negative electrode of diode; Port C3 is the base stage of triode.In the base stage of triode, be port C input sine wave, when triode conducting, inductance storage power.When triode by time, inductance induces left negative right positive voltage, this voltage is superimposed upon on the voltage that input voltage is port A1 input, through diode, powers to the load, and makes output voltage be greater than input voltage, forms booster circuit.Contact resistance R3 in the base stage of triode, and in resistance R 3, be parallel with capacitor C 1, resistance R 3 and capacitor C 1 play filtering voltage regulation effect, to avoid direct current to impact circuit, the stability that improves circuit, makes input voltage more stable, and being convenient to provides more stable power supply for computer.
In order to strengthen the stability of this circuit, described resistance R 1, resistance R 2, resistance R 3 and resistance R 4 are polysilicon resistance.Resistance in this circuit all being adopted to polysilicon resistance, can improve the matching of circuit, is that the stability of this circuit strengthens.
In order to make the stability of output voltage of this circuit stronger, described resistance R 1 or the resistance of resistance R 4 are not more than the resistance of resistance R 2.The voltage at resistance R 2 two ends is the voltage pressure value that load provides, and in order to make the voltage of getting at resistance R 2 two ends larger, the resistance of resistance R 2 should be large.Resistance R 1 and resistance R 4 are connected on the collector and emitter of triode, when triode conducting, can protect triode, and its resistance should be not excessive.
The resistance of described resistance R 3 is less than the resistance of resistance R 4.If the resistance of resistance R 3 is greater than the resistance of resistance R 4, if the voltage at resistance R 3 two ends is less than the voltage at resistance R 4 two ends and adds the pressure reduction between transistor base and transmitter, this circuit can not normally move, for fear of this situation, also in order to debug conveniently, the resistance of resistance R 3 is less than the resistance of resistance R 4.
Be as mentioned above embodiments of the invention.The present invention is not limited to above-mentioned embodiment, and anyone should learn the structural change of making under enlightenment of the present invention, and every have identical or close technical scheme with the present invention, within all falling into protection scope of the present invention.
Claims (4)
1. the power circuit for computer, it is characterized in that: it comprises inductance and triode, described inductance is connected with the collector of triode by resistance R 1, the base stage of described triode is connected to the ground by resistance R 3, in described resistance R 3, be parallel with capacitor C 1, the emitter of described triode is connected to the ground by resistance R 4, the common port of described inductance and resistance R 1 is connected on the anode of diode, the negative electrode of described diode is connected to the ground by resistance R 2, in described resistance R 2, is parallel with capacitor C 2.
2. a kind of power circuit for computer according to claim 1, is characterized in that: described resistance R 1, resistance R 2, resistance R 3 and resistance R 4 are polysilicon resistance.
3. a kind of power circuit for computer according to claim 1 and 2, is characterized in that: described resistance R 1 or the resistance of resistance R 4 are not more than the resistance of resistance R 2.
4. a kind of power circuit for computer according to claim 3, is characterized in that: the resistance of described resistance R 3 is less than the resistance of resistance R 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310586701.3A CN103729048A (en) | 2013-11-21 | 2013-11-21 | Power supply circuit for computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310586701.3A CN103729048A (en) | 2013-11-21 | 2013-11-21 | Power supply circuit for computer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103729048A true CN103729048A (en) | 2014-04-16 |
Family
ID=50453159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310586701.3A Pending CN103729048A (en) | 2013-11-21 | 2013-11-21 | Power supply circuit for computer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103729048A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100292859A1 (en) * | 2007-12-04 | 2010-11-18 | Dyden Corporation | Electric power supply apparatus |
| EP2348625A2 (en) * | 2000-12-21 | 2011-07-27 | Hitachi, Ltd. | Parallel power system and an electronic apparatus using the power system |
| CN203573240U (en) * | 2013-11-21 | 2014-04-30 | 成都市宏山科技有限公司 | Power circuit applicable to computer |
-
2013
- 2013-11-21 CN CN201310586701.3A patent/CN103729048A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2348625A2 (en) * | 2000-12-21 | 2011-07-27 | Hitachi, Ltd. | Parallel power system and an electronic apparatus using the power system |
| US20100292859A1 (en) * | 2007-12-04 | 2010-11-18 | Dyden Corporation | Electric power supply apparatus |
| CN203573240U (en) * | 2013-11-21 | 2014-04-30 | 成都市宏山科技有限公司 | Power circuit applicable to computer |
Non-Patent Citations (1)
| Title |
|---|
| 钟建伟等: "基于PIC16F716的多功能变频治疗仪的设计与实现", 《湖北民族学院学报(自然科学版)》, vol. 25, no. 4, 31 December 2007 (2007-12-31), pages 405 - 407 * |
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Application publication date: 20140416 |