CN101424967A - Power circuit for computer - Google Patents
Power circuit for computer Download PDFInfo
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- CN101424967A CN101424967A CNA2007100311424A CN200710031142A CN101424967A CN 101424967 A CN101424967 A CN 101424967A CN A2007100311424 A CNA2007100311424 A CN A2007100311424A CN 200710031142 A CN200710031142 A CN 200710031142A CN 101424967 A CN101424967 A CN 101424967A
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- power supply
- computer
- circuit
- power
- output
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Direct Current Feeding And Distribution (AREA)
Abstract
The invention discloses a computer power supply circuit which belongs to the filed of the computer power supply and aims at providing a computer power supply circuit with safety, energy conservation and consumption reduction. The computer power supply circuit comprises an input electrical network filter which is connected with an input rectification filter, the input rectification filter is connected with a power inverter and a standby power supply, the power converter is connected with an output rectification filter which is connected with a control circuit and a protective circuit, and the output rectification filter outputs DC power supply. The computer power supply circuit can provide a safe and stable power supply for a computer, and is suitable for the field of computers.
Description
Technical field
The present invention relates to a kind of computer power supply, more particularly, relate to a kind of safe, energy-saving and cost-reducing calculating power circuit.
Background technology
Power circuit for computer will be supplied to computing machine from the power supply of electrical network; Computer power supply is according to corresponding power standard design of computing machine and production, between these more than ten years of computing machine high speed development, the computer power supply standard is also and then constantly changing, to adapt to the requirement of computing machine high speed development, power supply is the power producer of main frame, all parts are all by the power supply of the power supply of cabinet inside in the computer system, and the quality of power supply output dc voltage directly influences quality, life-span and the performance of parts.Many power supplys producer in the face of market competition often reducing components and parts, as saving the filtering circuit device, holding circuit etc., or adopt low price, the components and parts of low allowance to reduce cost and improve the competitive power in market, and the domestic consumer often that is injured like this; Current, technological deficiency such as the security that computer power supply exists is not high, power consumption is big; Become those skilled in the art anxious technical matters to be solved.
Summary of the invention
Technical purpose of the present invention provides a kind of safe, energy-saving and cost-reducing calculating power circuit.
For realizing above technical purpose, technical scheme of the present invention is:
Power circuit for computer includes the input line filter, and the input line filter connects the input rectifying wave filter; Described input rectifying wave filter connects power converter and standby power, and described power converter connects the output rectifier filer, and described output rectifier filer connects control circuit and holding circuit, output rectifier filer output DC source.
Described input line filter includes choking coil, electric capacity and telefault.
Useful technique effect of the present invention is: by the design of filtering circuit and holding circuit; Make the present invention use energy safely, energy-conservationly be the computer supplies power supply; Circuit theory of the present invention is simple, designs ingeniously, and technology maturation is later than enforcement.
Description of drawings
Fig. 1 is a circuit module block diagram of the present invention;
Fig. 2 is the circuit theory diagrams of one embodiment of the invention.
Embodiment
In conjunction with Fig. 1 and Fig. 2, describe the specific embodiment of the present invention in detail
In the present invention, the civil power of electrical network is input to the input line filter, and the input line filter connects the input rectifying wave filter; Described input rectifying wave filter connects power converter and standby power, and described power converter connects the output rectifier filer, and described output rectifier filer connects control circuit and holding circuit, output rectifier filer output DC source.
When the electricity of electrical network enters power supply of the present invention, at first to pass through choking coil and electric capacity, filtering high frequency clutter and interference signals mutually, and then through telefault and electric capacity, further filtering high frequency clutter; And then, carry out rectification through the full-bridge circuit of forming by four diodes, after jumbo filter capacitor filtering, electric current just is converted to high voltage direct current by High Level AC Voltage, passed through after the conversion of exchange and direct current, electric current has entered on-off circuit, on-off circuit is made up of two switching tubes, conducting or disconnection in turn by these two switching tubes, direct current is converted to high-frequency Rectified alternating current, and then, electric current is delivered to transformation on the high frequency switch transformer, through the pulsating volage after the high frequency switch transformer step-down, to use diode and filter capacitor to carry out rectification and filtering equally, in addition, also be provided with telefault with filter capacitor filtering high-frequency current composition, through the above-mentioned course of work, the electric current supply computing machine of power supply output stability and safety of the present invention.
In the present invention, the input line filter is used for eliminating electrical network because the interference that factors such as motor start-up, electric switch or thunderbolt produce, and also absorbs high frequency noise that power supply produces simultaneously and spreads to utility network preventing; The input rectifying wave filter is used for the alternating voltage of electrical network input is carried out rectifying and wave-filtering, for transducer provides ripple less DC voltage; Power converter is used for dc voltage conversion is become high-frequency ac voltage; And will import electrical network and output circuit isolation; The output rectifier filer is used for the high-frequency alternating current rectifying and wave-filtering with power converter output, thereby obtains the DC voltage of needs; Control circuit is used to detect output dc voltage, and compares and enlarges with reference voltage, the modulating oscillation pulse width, thus the control change device is to keep the stable of output voltage; Holding circuit is used for when Switching Power Supply generation overvoltage, overcurrent or short circuit Switching Power Supply being quit work, with protection load and power supply itself; Standby power among the present invention is+the 5VSB standby power, is an independent power circuit, being used to provides+and 5VSB voltage, as long as this power supply has input voltage, with regard to output+5VSB voltage; Be mainly used in the call service of power supply and system, and the operating voltage of main control chip is provided.
Claims (2)
1. power circuit for computer, it is characterized in that: described power circuit includes the input line filter, and the input line filter connects the input rectifying wave filter; Described input rectifying wave filter connects power converter and standby power, and described power converter connects the output rectifier filer, and described output rectifier filer connects control circuit and holding circuit, output rectifier filer output DC source.
2. power circuit for computer according to claim 1 is characterized in that: described input line filter includes choking coil, electric capacity and telefault.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100311424A CN101424967A (en) | 2007-10-31 | 2007-10-31 | Power circuit for computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100311424A CN101424967A (en) | 2007-10-31 | 2007-10-31 | Power circuit for computer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101424967A true CN101424967A (en) | 2009-05-06 |
Family
ID=40615612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100311424A Pending CN101424967A (en) | 2007-10-31 | 2007-10-31 | Power circuit for computer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101424967A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895191A (en) * | 2010-04-08 | 2010-11-24 | 山东高效能服务器和存储研究院 | Method for designing high-power and high-reliability server power supply by using modular power supply |
| CN106598190A (en) * | 2016-12-22 | 2017-04-26 | 吴锐 | Computer power supply |
-
2007
- 2007-10-31 CN CNA2007100311424A patent/CN101424967A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895191A (en) * | 2010-04-08 | 2010-11-24 | 山东高效能服务器和存储研究院 | Method for designing high-power and high-reliability server power supply by using modular power supply |
| CN106598190A (en) * | 2016-12-22 | 2017-04-26 | 吴锐 | Computer power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090506 |