CN203261244U - High-frequency switching power supply module - Google Patents
High-frequency switching power supply module Download PDFInfo
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- CN203261244U CN203261244U CN2013202917393U CN201320291739U CN203261244U CN 203261244 U CN203261244 U CN 203261244U CN 2013202917393 U CN2013202917393 U CN 2013202917393U CN 201320291739 U CN201320291739 U CN 201320291739U CN 203261244 U CN203261244 U CN 203261244U
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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Abstract
A high-frequency switching power supply module is provided. The high-frequency switching power supply module is composed of a main circuit and a control/detection circuit. The high-frequency switching power supply module is characterized in that the main circuit is composed of a lightning protection electro magnetic interference (EMI) protection circuit, a full-bridge rectifying circuit, a passive (power factor correction) PFC circuit, a DC/AC conversion circuit, a smoothing filtering circuit and an output protection circuit; and the control/detection circuit is composed of a power supply control circuit, a sampling feedback circuit, a current-equalizing control circuit, a module monitoring circuit, an over temperature protection circuit, an overvoltage and overcurrent/short-circuit protection circuit. The high-frequency switching power supply module of the utility model has the advantages of long service life, high efficiency, strong anti-interference performance and environmental protection.
Description
Technical field:
The utility model relates to a kind of Switching Power Supply, and particularly kind of high-frequency switching power supply module has simple in structurely, and efficient is high, the characteristics such as dependable performance, environmental protection.
Background technology:
The traditional full-bridge soft-switching technology of the most of employing of the direct current system that the conventional power source module is used, it has improved reliability, efficient, electromagnetic interference (EMI) the three large basic functions of power supply really to a great extent, but also there are many deficiencies and sorry, as: its soft switch is not on the complete meaning unfortunately: heavily loaded duty-cycle loss reduces fan-out capability, and circulation loss lowers efficiency; The same pulse mode that is with hard switching PWM of operating current causes electromagnetic interference; The master control ring still is monocycle voltage control mode that falls behind etc., and this has all restricted the raising of power supply three large key propertys, so that the aspects such as the efficient of module, ripple, electromagnetic radiation, thermal radiation, noise are unsatisfactory.
The utility model content:
For the technical deficiency of existing the said goods, the purpose of this utility model just provides a kind of high-frequency switching power supply module, and this module performance is reliable, and is practical.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of high-frequency switching power supply module is comprised of main circuit and control, testing circuit; It is characterized in that: described main circuit is comprised of lightning protection EMI protective circuit, full bridge rectifier, passive PFC circuit, DC/AC translation circuit, smoothed filter circuit, output protection circuit; Described control, testing circuit are comprised of power control circuit, sampling feedback circuit, equalizing control circuit, module monitors circuit, thermal-shutdown circuit, over-voltage and over-current short-circuit protection circuit; Be connected with lightning protection EMI protective circuit input after the input of three-phase alternating-current supply voltage; lightning protection EMI protective circuit output is connected with the input of full bridge rectifier; the full bridge rectifier output is connected with the input of passive PFC circuit; the output of passive PFC circuit is connected with the input of DC/AC translation circuit; the output of DC/AC translation circuit is connected with the input of smoothed filter circuit and the input of power control circuit connects; the output of smoothed filter circuit is connected with the input of output protection circuit; power control circuit is connected with the module monitors circuit, and the module monitors circuit connects and shows; keyboard circuit and communication interface.
As improvement of the present utility model, described power control circuit is dicyclo voltage-type control loop.
As improvement of the present utility model, the input of described power control circuit also connects over-voltage and over-current short-circuit protection circuit, thermal-shutdown circuit, equalizing control circuit, sampling feedback circuit.
The utility model beneficial effect: have long service life, high, the strong interference immunity of efficient, the environmental protection characteristics.
Description of drawings:
Fig. 1 is that the utility model module connects block diagram
Embodiment:
As shown in Figure 1, the utility model provides a kind of high-frequency switching power supply module, it is characterized in that: be comprised of main circuit 1 and control, testing circuit 2; Main circuit 1 is comprised of lightning protection EMI protective circuit (11), full bridge rectifier (12), passive PFC circuit (13), DC/AC translation circuit (14), smoothed filter circuit (15), output protection circuit (16); It is to finish the major part that exchanges the overall process that is input to direct current output; after the 380VAC alternating current input through after the lightning protection EMI protective circuit (11); signal access full bridge rectifier (12) with output; purpose is in order to be level and smooth DC power supply with the direct rectification of AC power in the electrical network, finishes the overall process of DC/AC.Provide the galvanic current source with passive PFC circuit (13) simultaneously.Behind passive PFC circuit (13), eliminated harmonic current pollution electrical network and the minimizing reactive loss of being drawn by full bridge rectifier (12) and come the bring to power factor.Through behind the passive PFC circuit (13) signal being sent into smoothed filter circuit (15); send into again output protection circuit (16) after in this circuit, direct current being become high-frequency alternating current, behind output protection circuit so that direct current output is more stable.
Described control, testing circuit 2 comprise that power control circuit (21), sampling feedback circuit (22), equalizing control circuit (23), module monitors circuit (24), thermal-shutdown circuit (26), over-voltage and over-current short-circuit protection circuit (27) form.Power control circuit (21) is dicyclo voltage-type control loop, and dicyclo voltage-type control loop provides all circuit workings of module itself the required various different power supplys that require.Equalizing control circuit (23) is finished the control of output current, voltage.Feedback sampling circuit (22) is finished the collection of the signal of output current, voltage, and with signal feedback in dicyclo voltage-type control loop.Over-voltage and over-current short-circuit protection circuit (27) is finished the protective effect to output current, voltage.Thermal-shutdown circuit (26) is finished the detection of power control circuit (21) and radiator.All signals in above loop are in order to dicyclo voltage-type control loop.The output of power control circuit (21) is connected with the input of module monitors circuit (24), and the output of module monitors circuit (24) is connected with communication interface with liquid crystal display, keyboard circuit (25).On the charactron of module monitors circuit (24) with its signal converting digital information demonstration, communication interface can be with the data upload of measuring.
Claims (3)
1. a high-frequency switching power supply module is comprised of main circuit and control, testing circuit; It is characterized in that: described main circuit is comprised of lightning protection EMI protective circuit, full bridge rectifier, passive PFC circuit, DC/AC translation circuit, smoothed filter circuit, output protection circuit; Described control, testing circuit are comprised of power control circuit, sampling feedback circuit, equalizing control circuit, module monitors circuit, thermal-shutdown circuit, over-voltage and over-current short-circuit protection circuit; Be connected with lightning protection EMI protective circuit input after the input of three-phase alternating-current supply voltage; lightning protection EMI protective circuit output is connected with the input of full bridge rectifier; the full bridge rectifier output is connected with the input of passive PFC circuit; the output of passive PFC circuit is connected with the input of DC/AC translation circuit; the output of DC/AC translation circuit is connected with the input of smoothed filter circuit and the input of power control circuit connects; the output of smoothed filter circuit is connected with the input of output protection circuit; power control circuit is connected with the module monitors circuit, and the module monitors circuit connects and shows; keyboard circuit and communication interface.
2. a kind of high-frequency switching power supply module according to claim 1, it is characterized in that: described power control circuit is dicyclo voltage-type control loop.
3. a kind of high-frequency switching power supply module according to claim 1, it is characterized in that: the input of described power control circuit also connects over-voltage and over-current short-circuit protection circuit, thermal-shutdown circuit, equalizing control circuit, sampling feedback circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202917393U CN203261244U (en) | 2013-05-19 | 2013-05-19 | High-frequency switching power supply module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202917393U CN203261244U (en) | 2013-05-19 | 2013-05-19 | High-frequency switching power supply module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203261244U true CN203261244U (en) | 2013-10-30 |
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ID=49473781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202917393U Expired - Fee Related CN203261244U (en) | 2013-05-19 | 2013-05-19 | High-frequency switching power supply module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203261244U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993728A (en) * | 2015-07-07 | 2015-10-21 | 安徽继远电网技术有限责任公司 | Intelligent high-frequency switching power source module applied to substation power source system |
| CN108347185A (en) * | 2018-01-30 | 2018-07-31 | 安徽省金屹电源科技有限公司 | A kind of high-frequency high-voltage switch power source |
-
2013
- 2013-05-19 CN CN2013202917393U patent/CN203261244U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993728A (en) * | 2015-07-07 | 2015-10-21 | 安徽继远电网技术有限责任公司 | Intelligent high-frequency switching power source module applied to substation power source system |
| CN108347185A (en) * | 2018-01-30 | 2018-07-31 | 安徽省金屹电源科技有限公司 | A kind of high-frequency high-voltage switch power source |
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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: 20131030 Termination date: 20140519 |