CN202906769U - A computer switching power supply - Google Patents
A computer switching power supply Download PDFInfo
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- CN202906769U CN202906769U CN2012205873176U CN201220587317U CN202906769U CN 202906769 U CN202906769 U CN 202906769U CN 2012205873176 U CN2012205873176 U CN 2012205873176U CN 201220587317 U CN201220587317 U CN 201220587317U CN 202906769 U CN202906769 U CN 202906769U
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- 238000001914 filtration Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 24
- 230000000087 stabilizing effect Effects 0.000 abstract 2
- 230000001737 promoting effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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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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Abstract
The utility model relates to a computer switching power supply. The computer switching power supply comprises a first stage EMI filter, a second stage EMI filter, a full bridge rectification filter, a master switching tube, a driving transformer, a standby power transformer, a rectification filtering follower, a master power transformer, a promoting tube, an output rectification filter, and a voltage stabilizing controller. The computer switching power supply is characterized by also comprising a resistor and a switch. A group in which the resistor is connected with the switch in series is connected with two ends of a biasing resistor of the voltage stabilizing controller in parallel. The advantages of the computer switching power supply are that output voltage can be boosted by external control so as to achieve stable output voltage value, and that the computer switching power supply has easy adjustment and a simple structure.
Description
Technical field
The utility model relates to a kind of computer switching power supply.
Background technology
At present, the computer switching power supply on the market all is to be installed in the power supply casing by fixed resistance or adjustable resistance; During computer switching power supply work, output voltage can not be controlled by external device (ED), thereby causes computer switching power supply larger at the output voltage error of full load.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art and provide a kind of to improve output voltage by external control, makes the stable computer switching power supply of magnitude of voltage of output.
In order to achieve the above object, the utility model is to realize like this, it is a kind of computer switching power supply, comprises first order electromagnetic interface filter, second level electromagnetic interface filter, full-bridge rectifier filter device, main switch, driving transformer, standby power transformer, rectifying and wave-filtering follower, main power transformer, promotion pipe, output rectification filter device and voltage-stabilizing controller; Wherein said first order electromagnetic interface filter receives the 220V AC signal and processes rear output, described second level electromagnetic interface filter receives the output signal of first order electromagnetic interface filter and processes rear output, described full-bridge rectifier filter device receives the output signal of second level electromagnetic interface filter and processes rear output, described main switch, standby power transformer and main power transformer receive respectively the output signal of full-bridge rectifier filter device and process respectively rear output, described main power transformer also receives the output signal of main switch and processes rear output, described driving transformer receives the output signal of main switch and processes rear output, output+12V respectively after the output signal that described output rectification filter device receives main power transformer is processed,-12V, + 5V, the voltage of-5V and+3.3 V, described promotion pipe receives the output signal of driving transformer and processes rear output, after the output signal of described rectifying and wave-filtering follower reception standby power transformer is processed two tunnel outputs are arranged, one tunnel output+5V voltage, another road outputs to an input of voltage-stabilizing controller, another input of described voltage-stabilizing controller receives the output signal that promotes pipe process after output+12V respectively,-12V, + 5V,-5V, + 3.3 V, PG signal and PS/ON signal; Characterized by further comprising resistance and switch, after described resistance is connected with switch and the biasing resistor two ends of receiving voltage-stabilizing controller.
The biasing resistor of described voltage-stabilizing controller is below-center offset resistance.
Described switch (K) is hand switch or intelligent control switch.
The utility model advantage compared with prior art is: can improve output voltage by external control, make the magnitude of voltage of output stable, easy to adjust, simple in structure.
Description of drawings
Fig. 1 is circuit block diagram of the present utility model;
Fig. 2 is the circuit diagram that resistance of the present utility model, switch are electrically connected with below-center offset resistance.
Embodiment
The below describes embodiment of the present utility model in detail, and the example of described embodiment is shown in the drawings, among the figure from start to finish identical or similar label represent identical or similar element or the element with identical or similar functions.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, term " first " reaches " second " and only is used for describing purpose, and can not be interpreted as indication or hint relative importance.
As shown in Figure 1, it is a kind of computer switching power supply, comprises first order electromagnetic interface filter, second level electromagnetic interface filter, full-bridge rectifier filter device, main switch, driving transformer, standby power transformer, rectifying and wave-filtering follower, main power transformer, promotion pipe, output rectification filter device and voltage-stabilizing controller; Wherein said first order electromagnetic interface filter receives the 220V AC signal and processes rear output, described second level electromagnetic interface filter receives the output signal of first order electromagnetic interface filter and processes rear output, described full-bridge rectifier filter device receives the output signal of second level electromagnetic interface filter and processes rear output, described main switch, standby power transformer and main power transformer receive respectively the output signal of full-bridge rectifier filter device and process respectively rear output, described main power transformer also receives the output signal of main switch and processes rear output, described driving transformer receives the output signal of main switch and processes rear output, output+12V respectively after the output signal that described output rectification filter device receives main power transformer is processed,-12V, + 5V, the voltage of-5V and+3.3 V, described promotion pipe receives the output signal of driving transformer and processes rear output, after the output signal of described rectifying and wave-filtering follower reception standby power transformer is processed two tunnel outputs are arranged, one tunnel output+5V voltage, another road outputs to an input of voltage-stabilizing controller, another input of described voltage-stabilizing controller receives the output signal that promotes pipe process after output+12V respectively,-12V, + 5V,-5V, + 3.3 V, PG signal and PS/ON signal; Characteristics of the present utility model are also to comprise resistance R and K switch, after described resistance R is connected with K switch and the biasing resistor two ends of receiving voltage-stabilizing controller.
In the present embodiment, the biasing resistor of described voltage-stabilizing controller is below-center offset resistance R 6.Described K switch is hand switch or intelligent control switch.
During work, when external control switch K was closed, resistance R was in parallel with the below-center offset resistance R 6 of voltage-stabilizing controller, and the resistance of below-center offset resistance R 6 parallel connections is diminished, and feedback reference voltage is reduced, and output voltage raises; In the middle of work, can improve output voltage according to own needs.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple variation, modification, replacement and distortion to these embodiment in the situation that does not break away from principle of the present utility model and aim, scope of the present utility model is limited by claim and equivalent thereof.
Claims (3)
1. a computer switching power supply comprises first order electromagnetic interface filter, second level electromagnetic interface filter, full-bridge rectifier filter device, main switch, driving transformer, standby power transformer, rectifying and wave-filtering follower, main power transformer, promotion pipe, output rectification filter device and voltage-stabilizing controller; Wherein said first order electromagnetic interface filter receives the 220V AC signal and processes rear output, described second level electromagnetic interface filter receives the output signal of first order electromagnetic interface filter and processes rear output, described full-bridge rectifier filter device receives the output signal of second level electromagnetic interface filter and processes rear output, described main switch, standby power transformer and main power transformer receive respectively the output signal of full-bridge rectifier filter device and process respectively rear output, described main power transformer also receives the output signal of main switch and processes rear output, described driving transformer receives the output signal of main switch and processes rear output, output+12V respectively after the output signal that described output rectification filter device receives main power transformer is processed,-12V, + 5V, the voltage of-5V and+3.3 V, described promotion pipe receives the output signal of driving transformer and processes rear output, after the output signal of described rectifying and wave-filtering follower reception standby power transformer is processed two tunnel outputs are arranged, one tunnel output+5V voltage, another road outputs to an input of voltage-stabilizing controller, another input of described voltage-stabilizing controller receives the output signal that promotes pipe process after output+12V respectively,-12V, + 5V,-5V, + 3.3 V, PG signal and PS/ON signal; Characterized by further comprising resistance (R) and switch (K), after described resistance (R) is connected with switch (K) and the biasing resistor two ends of receiving voltage-stabilizing controller.
2. computer switching power supply according to claim 1, the biasing resistor that it is characterized in that described voltage-stabilizing controller is below-center offset resistance (R6).
3. computer switching power supply according to claim 1 is characterized in that described switch (K) is hand switch or intelligent control switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205873176U CN202906769U (en) | 2012-11-09 | 2012-11-09 | A computer switching power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205873176U CN202906769U (en) | 2012-11-09 | 2012-11-09 | A computer switching power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202906769U true CN202906769U (en) | 2013-04-24 |
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ID=48127387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205873176U Expired - Fee Related CN202906769U (en) | 2012-11-09 | 2012-11-09 | A computer switching power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202906769U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375760A (en) * | 2018-12-14 | 2019-02-22 | 佛山市伙伴联扬电子有限公司 | A computer power detection device |
| CN109782885A (en) * | 2019-01-08 | 2019-05-21 | 佛山市伙伴联扬电子有限公司 | A kind of power supply and switching device of automatic sensing control lamp effect |
-
2012
- 2012-11-09 CN CN2012205873176U patent/CN202906769U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375760A (en) * | 2018-12-14 | 2019-02-22 | 佛山市伙伴联扬电子有限公司 | A computer power detection device |
| CN109782885A (en) * | 2019-01-08 | 2019-05-21 | 佛山市伙伴联扬电子有限公司 | A kind of power supply and switching device of automatic sensing control lamp effect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20131109 |