CN204681263U - Be applied to the switching power source control circuit system of power amplifier - Google Patents
Be applied to the switching power source control circuit system of power amplifier Download PDFInfo
- Publication number
- CN204681263U CN204681263U CN201520335377.2U CN201520335377U CN204681263U CN 204681263 U CN204681263 U CN 204681263U CN 201520335377 U CN201520335377 U CN 201520335377U CN 204681263 U CN204681263 U CN 204681263U
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- circuit
- control circuit
- power
- wave filtering
- electrically connected
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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
The utility model discloses the switching power source control circuit system being applied to power amplifier, comprise power amplifier circuit and switching power circuit, switching power circuit comprises the EMI circuit of electrical connection civil power, described EMI circuit rear end is electrically connected with a current rectifying and wave filtering circuit successively, PFC circuit for power conversion, LLC circuit for power conversion, secondary current rectifying and wave filtering circuit, described secondary current rectifying and wave filtering circuit is by DC output electrical connection power amplifier circuit, described PFC circuit for power conversion is electrically connected with PFC control circuit, described LLC circuit for power conversion is connected with a pwm control circuit, accessory power supply is electrically connected on described PFC control circuit and pwm control circuit respectively, the utility model is by being provided with EMI circuit, a current rectifying and wave filtering circuit, secondary current rectifying and wave filtering circuit, pfc circuit carries out the process of voltage and current to civil power, export required each road voltage again to power amplifier, complete power conversion, by being provided with the measure protective circuits such as input over under-voltage protection circuit, current-limiting protection circuit, output overvoltage protection circuit.
Description
Technical field
The utility model belongs to Circuits System, is specifically related to the control circuit of Switching Power Supply.
Background technology
Switching Power Supply utilizes modern power electronics technology, the time ratio that control switch turns on and off, and maintains the power supply of regulated output voltage.Nowadays, switch power technology is constantly brought forth new ideas, and it covers the nearly all electronic equipment of application with small-sized, light weight, high efficiency feature.Switching Power Supply is roughly made up of main circuit, control circuit, testing circuit, accessory power supply four major part, nowadays switch power technology field is limit exploitation associate power electronic device, limit exploitation switch converter technique, to light, little, thin, low noise, highly reliable, jamproof future development.
Need equally in power amplifier to use Switching Power Supply, the technology of the existing Switching Power Supply being applied to power amplifier in low energy consumption, power density are large, lightweight is enough ripe.Therefore study a kind of high efficiency, pollution-free, energy-conservation, that volume is little Switching Power Supply is necessary.
Utility model content
The utility model provides the switching power control system being applied to power amplifier, does not accomplish low energy consumption, high efficiency, technical problem that volume is little to solve in existing Switching Power Supply.
Be applied to the switching power source control circuit system of power amplifier, comprise power amplifier circuit and switching power circuit, switching power circuit comprises the EMI circuit of electrical connection civil power, described EMI circuit rear end is electrically connected with a current rectifying and wave filtering circuit successively, PFC circuit for power conversion, LLC circuit for power conversion, secondary current rectifying and wave filtering circuit, described secondary current rectifying and wave filtering circuit is by DC output electrical connection power amplifier circuit, described PFC circuit for power conversion is electrically connected with a PFC control circuit, described LLC circuit for power conversion is electrically connected with a pwm control circuit, also be provided with accessory power supply, described accessory power supply is electrically connected on described PFC control circuit and pwm control circuit respectively.
Further, described accessory power supply is connected electrically on a current rectifying and wave filtering circuit.
Further, a described current rectifying and wave filtering circuit is also electrically connected with input over under-voltage protection circuit, and described over under-voltage protection circuit is electrically connected described PFC control circuit and pwm control circuit respectively.
Further, described DC output is electrically connected with current-limiting protection circuit and output overvoltage protection circuit, and the output of described current-limiting protection circuit and output overvoltage protection circuit is all connected electrically in pwm control circuit.
The utility model to carry out the process of voltage and current to civil power by being provided with EMI circuit, current rectifying and wave filtering circuit, secondary current rectifying and wave filtering circuit, PFC circuit for power conversion, LLC circuit for power conversion, export required each road voltage again to power amplifier, complete power conversion; By being provided with the measure protective circuits such as input over under-voltage protection circuit, current-limiting protection circuit, output overvoltage protection circuit.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Embodiment
Do not accomplish low energy consumption, high efficiency, technical problem that volume is little to solve in existing Switching Power Supply, the switching power control system being applied to power amplifier is now provided.
Below in conjunction with the accompanying drawing in the utility model, be clearly and completely described the technical scheme in the utility model, obviously, described is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, all belongs to the scope of the utility model protection.
Shown in Figure 1, be applied to the switching power source control circuit system of power amplifier, comprise power amplifier circuit 1 and switching power circuit 2, switching power circuit 2 comprises the EMI circuit 10 of electrical connection civil power, described EMI circuit 10 rear end is electrically connected with a current rectifying and wave filtering circuit 11 successively, PFC circuit for power conversion 12, LLC circuit for power conversion 13, secondary current rectifying and wave filtering circuit 14, described secondary current rectifying and wave filtering circuit 14 is electrically connected power amplifier circuit 1 by DC output 3, described PFC circuit for power conversion electricity 12 is connected with a PFC control circuit 7, described LLC circuit for power conversion 13 is electrically connected with a pwm control circuit 6, also be provided with accessory power supply 9, described accessory power supply 9 is electrically connected on described PFC control circuit 7 and pwm control circuit 6 respectively.
Described accessory power supply 9 is connected electrically on a current rectifying and wave filtering circuit 11; a described current rectifying and wave filtering circuit 11 is also electrically connected with input over under-voltage protection circuit 8; described over under-voltage protection circuit 8 is electrically connected described PFC control circuit 7 and pwm control circuit 8 respectively; described DC output 3 is electrically connected with current-limiting protection circuit 5 and output overvoltage protection circuit 4, and the output of described current-limiting protection circuit 5 and output overvoltage protection circuit 4 is all connected electrically in pwm control circuit 6.
220V civil power is through EMI circuit 10, one time current rectifying and wave filtering circuit 11 obtains 300V direct current, through PFC change-over circuit 12, voltage is risen to 370V again, deliver to LLC circuit for power conversion 13 and carry out voltage transitions, then through secondary current rectifying and wave filtering circuit 14, need to make adjustment to voltage according to the different capacity of power amplifier, power amplifier 1 circuit is everywhere transported to again by DC output 3, accessory power supply 9 obtains electric energy via a current rectifying and wave filtering circuit 11, export toward PFC control circuit 12 and pwm control circuit 6 respectively, if unstable through the current/voltage of current rectifying and wave filtering circuit 11 output, input over under-voltage protection circuit 8 can work, electric current enters PFC control circuit 7 again after the process of over under-voltage protection circuit 8, pwm control circuit 6, PFC control circuit 7 and pwm control circuit 6 respectively control PFC circuit for power conversion 12 and LLC power conversion circuit 13 pairs of electric currents process, when the electric current of DC output 3, voltage do not meet standard, return current-limiting protection circuit 5 and output overvoltage protection circuit 4, flow to LLC circuit for power conversion 13 through pwm control circuit 6 again and process, flow through secondary current rectifying and wave filtering circuit 14 again process meet standard after export through DC output 3.
The utility model to carry out the process of voltage and current to civil power by being provided with EMI circuit, current rectifying and wave filtering circuit, secondary current rectifying and wave filtering circuit, PFC circuit for power conversion, LLC circuit for power conversion, export required each road voltage again to power amplifier, complete power conversion; By being provided with the measure protective circuits such as input over under-voltage protection circuit, current-limiting protection circuit, output overvoltage protection circuit.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be considered as belonging to protection range of the present utility model.
Claims (4)
1. be applied to the switching power source control circuit system of power amplifier, comprise power amplifier circuit and switching power circuit, it is characterized in that, switching power circuit comprises the EMI circuit of electrical connection civil power, described EMI circuit rear end is electrically connected with a current rectifying and wave filtering circuit successively, PFC circuit for power conversion, LLC circuit for power conversion, secondary current rectifying and wave filtering circuit, described secondary current rectifying and wave filtering circuit is by DC output electrical connection power amplifier circuit, described PFC circuit for power conversion is electrically connected with a PFC control circuit, described LLC circuit for power conversion is electrically connected with a pwm control circuit, also be provided with accessory power supply, described accessory power supply is electrically connected on described PFC control circuit and pwm control circuit respectively.
2. be applied to the switching power source control circuit system of power amplifier according to claim 1, it is characterized in that, described accessory power supply is connected electrically on a current rectifying and wave filtering circuit.
3. be applied to the switching power source control circuit system of power amplifier according to claim 1; it is characterized in that; a described current rectifying and wave filtering circuit is also electrically connected with input over under-voltage protection circuit, and described over under-voltage protection circuit is electrically connected described PFC control circuit and pwm control circuit respectively.
4. be applied to the switching power source control circuit system of power amplifier according to claim 3; it is characterized in that; described DC output is electrically connected with current-limiting protection circuit and output overvoltage protection circuit, and the output of described current-limiting protection circuit and output overvoltage protection circuit is all connected electrically in pwm control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520335377.2U CN204681263U (en) | 2015-05-22 | 2015-05-22 | Be applied to the switching power source control circuit system of power amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520335377.2U CN204681263U (en) | 2015-05-22 | 2015-05-22 | Be applied to the switching power source control circuit system of power amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204681263U true CN204681263U (en) | 2015-09-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520335377.2U Expired - Fee Related CN204681263U (en) | 2015-05-22 | 2015-05-22 | Be applied to the switching power source control circuit system of power amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204681263U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107333213A (en) * | 2017-08-30 | 2017-11-07 | 东莞中拓机械技术开发有限公司 | A kind of double 150W (PFC) the power amplifier modules of pulsewidth modulation 300W+ |
| CN107347171A (en) * | 2017-08-25 | 2017-11-14 | 东莞中拓机械技术开发有限公司 | A kind of pulsewidth modulation 600W+150W（PFC）Power amplifier module |
| CN107371095A (en) * | 2017-08-25 | 2017-11-21 | 东莞中拓机械技术开发有限公司 | A kind of pulsewidth modulation 350W 600W+150W power amplifier modules |
| CN107396245A (en) * | 2017-08-25 | 2017-11-24 | 东莞中拓机械技术开发有限公司 | A kind of pulsewidth modulation 700W+700W (PFC) power amplifier module |
-
2015
- 2015-05-22 CN CN201520335377.2U patent/CN204681263U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107347171A (en) * | 2017-08-25 | 2017-11-14 | 东莞中拓机械技术开发有限公司 | A kind of pulsewidth modulation 600W+150W（PFC）Power amplifier module |
| CN107371095A (en) * | 2017-08-25 | 2017-11-21 | 东莞中拓机械技术开发有限公司 | A kind of pulsewidth modulation 350W 600W+150W power amplifier modules |
| CN107396245A (en) * | 2017-08-25 | 2017-11-24 | 东莞中拓机械技术开发有限公司 | A kind of pulsewidth modulation 700W+700W (PFC) power amplifier module |
| CN107371095B (en) * | 2017-08-25 | 2023-12-22 | 东莞精恒电子有限公司 | Pulse width modulation 350W-600W+150W power amplifier module |
| CN107396245B (en) * | 2017-08-25 | 2023-12-22 | 东莞精恒电子有限公司 | Pulse width modulation 700W+700W (PFC) power amplifier module |
| CN107347171B (en) * | 2017-08-25 | 2023-12-22 | 东莞精恒电子有限公司 | Pulse width modulation 600W+150W (PFC) power amplifier module |
| CN107333213A (en) * | 2017-08-30 | 2017-11-07 | 东莞中拓机械技术开发有限公司 | A kind of double 150W (PFC) the power amplifier modules of pulsewidth modulation 300W+ |
| CN107333213B (en) * | 2017-08-30 | 2024-02-13 | 东莞精恒电子有限公司 | Pulse width modulation 300 W+double 150W (PFC) power amplifier module |
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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: 20150930 Termination date: 20170522 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |