CN203276159U - Power supply of computer - Google Patents
Power supply of computer Download PDFInfo
- Publication number
- CN203276159U CN203276159U CN 201320344946 CN201320344946U CN203276159U CN 203276159 U CN203276159 U CN 203276159U CN 201320344946 CN201320344946 CN 201320344946 CN 201320344946 U CN201320344946 U CN 201320344946U CN 203276159 U CN203276159 U CN 203276159U
- Authority
- CN
- China
- Prior art keywords
- voltage
- circuit
- output
- power supply
- input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a power supply of a computer, and belongs to the field of the computer. In order to solve the problem of single output voltage of the traditional power supply of the computer, the power supply of the computer disclosed by the utility model adopts the technical scheme as follows: the input end of a filter circuit is connected with an alternating current power supply; the output end of the filter circuit is connected with an alternating current input end of an input rectifier circuit; the direct current output end of the input rectifier circuit is connected with the direct current input end of a power converter; a high-frequency alternating current voltage output end of the power converter is connected with the alternating current input end of an output rectifier circuit; the output rectifier circuit outputs +5V voltage and -5V voltage; the direct current output end of the output rectifier circuit is also connected with the input end of a DC/DC (direct current/direct current) conversion circuit; the DC/DC conversion circuit outputs +12V voltage and -12V voltage; a monitoring circuit monitors the +5V voltage, the -5V voltage, the +12V voltage and the -12V voltage; and the output end of the monitoring circuit is connected with the control end of the power converter.
Description
Technical field
The utility model relates to computer power supply, belongs to computer realm.
Background technology
In the personal computer system, power supply is an indispensable element.The power supply of computing machine arranges the inner tip of computer cabinet mostly with fixing standard specification.Power supply can receive civil power (alternating current), and the conversion alternating current is that direct current gives personal computer with the supply power supply.
Power supply is the power producer of main frame, and in computer system, all by the Power supply of cabinet inside, therefore, the quality of power supply output dc voltage will directly have influence on quality, life-span and the performance of computing machine use to all component.
The alternating voltage that computer power supply need to provide electrical network is changed output dc voltage and is supplied to computing machine, and it need to design according to the power standard of computing machine.Parts required voltage in cabinet is different, and the voltage of computer power supply output now is single, needs could power respectively for other parts in cabinet through subsequent treatment.
Summary of the invention
The utility model purpose is in order to solve the single problem of active computer electric power output voltage, a kind of computer power supply to be provided.
Computer power supply described in the utility model, it comprises filtering circuit, input rectification circuit, power converter, output rectification circuit, DC/DC change-over circuit and observation circuit,
The input termination AC power of filtering circuit, the output terminal of filtering circuit is connected with the ac input end of input rectification circuit, the dc output end of input rectification circuit is connected with the direct-flow input end of power converter, the high-frequency ac voltage output terminal of power converter is connected with the ac input end of output rectification circuit, output rectification circuit output+5V piezoelectric voltage and-5V voltage;
The dc output end of output rectification circuit also is connected with the input end of DC/DC change-over circuit, DC/DC change-over circuit output+12V voltage and-12V voltage;
Monitoring circuit monitors+5V piezoelectric voltage ,-5V voltage ,+12V voltage and-12V voltage, the output terminal of observation circuit is connected with the control end of power converter.
Advantage of the present utility model: computer power supply described in the utility model is exported multiple DC voltage, satisfies the power requirement of each parts in cabinet, and is simple in structure, is conducive to promote.
Description of drawings
Fig. 1 is the theory diagram of computer power supply described in the utility model.
Embodiment
Embodiment one: below in conjunction with Fig. 1, present embodiment is described, the described computer power supply of present embodiment, it comprises filtering circuit 1, input rectification circuit 2, power converter 3, output rectification circuit 4, DC/DC change-over circuit 5 and observation circuit 6,
The input termination AC power of filtering circuit 1, the output terminal of filtering circuit 1 is connected with the ac input end of input rectification circuit 2, the dc output end of input rectification circuit 2 is connected with the direct-flow input end of power converter 3, the high-frequency ac voltage output terminal of power converter 3 is connected with the ac input end of output rectification circuit 4, output rectification circuit 4 output+5V piezoelectric voltages and-5V voltage;
The dc output end of output rectification circuit 4 also is connected with the input end of DC/DC change-over circuit 5, DC/DC change-over circuit 5 output+12V voltages and-12V voltage;
The full bridge rectifier that input rectification circuit 2 adopts four diodes to form.
In present embodiment, filtering circuit 1 directly is connected with AC power, converts interchange to direct current with input rectification circuit 3, and described direct current exports power converter 3 to, and buffer circuit 4 plays buffer action.
The course of work: 1 pair of 220V ac signal of filtering circuit carries out filtering to be processed, and is used for eliminating the undesired signal that the electrical network various factors produces; Input rectification circuit 2 carries out rectification for suitable DC voltage is provided with the electric signal of filtering circuit 1 output; Power converter 3 becomes high-frequency ac voltage with DC converting, simultaneously, input end and output terminal is isolated, and output rectification circuit 4 is transformed into DC voltage with high-frequency ac voltage, output two-way+5V and-5V voltage;
Simultaneously, the voltage of output rectification circuit 4 output is through DC/DC change-over circuit 5 output+12V voltages and-12V voltage;
+ 5V ,-5V voltage ,+12V voltage and-12V voltage is fit to the DC voltage that computing machine is used.
During electric voltage exception, observation circuit 6 output steering orders, regulating power transducer 3, with the voltage that guarantees computer power supply output within normal range.
Monitored by 6 pairs of four road voltages of observation circuit, compare with normal voltage, whether normally monitor four road voltages.
Embodiment two: present embodiment is described further embodiment one, and it also comprises warning circuit 7, and the alarm command output terminal of observation circuit 6 is connected with the alarm command input end of warning circuit 7.
When electric voltage exception, carry out self-control, but when voltage when regulating or can not get back to normal range, report to the police, remind people to keep in repair.
Claims (3)
1. computer power supply, is characterized in that, it comprises filtering circuit (1), input rectification circuit (2), power converter (3), output rectification circuit (4), DC/DC change-over circuit (5) and observation circuit (6),
The input termination AC power of filtering circuit (1), the output terminal of filtering circuit (1) is connected with the ac input end of input rectification circuit (2), the dc output end of input rectification circuit (2) is connected with the direct-flow input end of power converter (3), the high-frequency ac voltage output terminal of power converter (3) is connected with the ac input end of output rectification circuit (4), output rectification circuit (4) output+5V piezoelectric voltage and-5V voltage;
The dc output end of output rectification circuit (4) also is connected with the input end of DC/DC change-over circuit (5), DC/DC change-over circuit (5) output+12V voltage and-12V voltage;
Observation circuit (6) monitoring+5V piezoelectric voltage ,-5V voltage ,+12V voltage and-12V voltage, the output terminal of observation circuit (6) is connected with the control end of power converter (3).
2. computer power supply according to claim 1, is characterized in that, it also comprises warning circuit (7), and the alarm command output terminal of observation circuit (6) is connected with the alarm command input end of warning circuit (7).
3. computer power supply according to claim 1, is characterized in that, the full bridge rectifier that input rectification circuit (2) adopts four diodes to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320344946 CN203276159U (en) | 2013-06-17 | 2013-06-17 | Power supply of computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320344946 CN203276159U (en) | 2013-06-17 | 2013-06-17 | Power supply of computer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203276159U true CN203276159U (en) | 2013-11-06 |
Family
ID=49506528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320344946 Expired - Fee Related CN203276159U (en) | 2013-06-17 | 2013-06-17 | Power supply of computer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203276159U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107562168A (en) * | 2017-09-12 | 2018-01-09 | 深圳凯晖电子科技有限公司 | Power supply adaptor with usb data read-write |
-
2013
- 2013-06-17 CN CN 201320344946 patent/CN203276159U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107562168A (en) * | 2017-09-12 | 2018-01-09 | 深圳凯晖电子科技有限公司 | Power supply adaptor with usb data read-write |
| WO2019051997A1 (en) * | 2017-09-12 | 2019-03-21 | 深圳凯晖电子科技有限公司 | Power adapter with usb data reading and writing function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103736592A (en) | Automatic control system of electrical dust removal high-frequency power supply | |
| CN203276159U (en) | Power supply of computer | |
| CN202721612U (en) | Intelligent frequency-conversion variable-voltage test power supply | |
| CN204597786U (en) | A kind of variable frequency power supply based on IGBT | |
| CN203102148U (en) | Computer power supply | |
| CN203587685U (en) | Voltage-adaptive three-phase multifunctional electric energy meter | |
| CN209784432U (en) | Electric energy quality disturbance signal acquisition device | |
| CN209542733U (en) | A kind of energy back feed device in current transformer load test | |
| CN202929563U (en) | Computer safe power source | |
| CN204794713U (en) | Electrified way detection module's modularization converter | |
| CN204537582U (en) | The digital power source of power training device | |
| CN203759119U (en) | Electric power user low-voltage harmonic wave on-line monitoring device | |
| CN203038203U (en) | Computer power supply | |
| CN205336134U (en) | Digital power transducer 's of generator DC auxiliary power supply | |
| CN205265370U (en) | Novel SVG controller | |
| CN202340192U (en) | Variable-frequency power supply with monitoring function | |
| CN202133698U (en) | Novel photovoltaic conflux detection device | |
| CN203553976U (en) | Intelligent uninterruptible power supply (UPS) | |
| CN203149554U (en) | Computer power source | |
| CN203695223U (en) | Automatic control system of high-frequency power supply for electric precipitator | |
| CN204696906U (en) | A kind of Modularized current transformer with circuit detection module | |
| CN203387187U (en) | Reactive power compensation intelligent controller | |
| CN203299743U (en) | Computer power supply | |
| CN203967758U (en) | A kind of reactive power compensation system with temperature acquisition function | |
| CN203326895U (en) | Pulse electroplate power source based on one-chip microcomputer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20140617 |
|
| EXPY | Termination of patent right or utility model |