CN201440634U - Novel digital control power PFC circuit - Google Patents
Novel digital control power PFC circuit Download PDFInfo
- Publication number
- CN201440634U CN201440634U CN2009201755037U CN200920175503U CN201440634U CN 201440634 U CN201440634 U CN 201440634U CN 2009201755037 U CN2009201755037 U CN 2009201755037U CN 200920175503 U CN200920175503 U CN 200920175503U CN 201440634 U CN201440634 U CN 201440634U
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- CN
- China
- Prior art keywords
- circuit
- input
- control power
- digital control
- dsp processor
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- 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.)
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Classifications
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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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- 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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- Rectifiers (AREA)
- Dc-Dc Converters (AREA)
Abstract
The utility model discloses a novel digital control power PFC circuit, comprising an input circuit and an output circuit; a two-phase interactive BOOST topology converter is arranged between the input circuit and the output circuit, the input circuit is connected with a DSP processor by a feedback circuit, and the DSP processor is connected with the two-phase interactive BOOST topology converter by a gate driving circuit; the DSP processor comprises a PID operation module, an ADC module and a plurality of PWM modules; the feedback circuit is connected with the PID operation module by the ADC module, and the PID operation module is connected with the gate driving circuit by a plurality of the PWM modules; the novel digital control power PFC circuit can convert AC input into 385V direct current and keep the input current to be sine, so as to obtain high input power factor. The novel digital control power PFC circuit has the functions of inhibiting various high-frequency harmonic wave currents and effectively improving voltage waveform distortion and current peak; the novel digital control power PFC circuit is suitable for AC front end of DC/DC and can greatly improve the power.
Description
Technical field
The utility model relates to a kind of novel numerical control power supply pfc circuit.
Background technology
One of main developing trend of modern Switching Power Supply is to improve AC/DC converter input power factor, reduces the harmonic pollution to electrical network.Traditional AC/DC switch converters input is diode rectification-capacitor filtering combinational circuit, its input current waveform is pulse type, AC network side power factor has only 0.6～0.7, and total harmonic distortion THD (TotalHarmonicDistortion) of electric current reaches 100%.(power factor is 0.999 o'clock, and THD is about 3%).Therefore carrying out the power factor correction of net side becomes one of focus of present research.
Research at present and maximum isolated high power factor converting device of using will be connected with two-stage DC/DC switch converters, and cost increases by 15%～20%.The disadvantage of sort circuit is to need a plurality of components and parts, the cost height, and efficient is low, and is especially when the middle low power applications, very uneconomical.For small-power AC/DC converter, researching and developing single-stage high-power rate factor circuit now both at home and abroad, power factor can reach 0.9, and cost only increases by 5%.Thereby the research isolated power factor correction of one pole (PFC) converter has become very urgent requirement.
The utility model content
The utility model technical issues that need to address just are to provide a kind of novel numerical control power supply pfc circuit, and it can be transformed into the AC input 385V direct current and keep the input current sine, obtains high input power factor.Have the various high-frequency harmonic electric currents of inhibition, can improve the function of voltage waveform distortion and current spike effectively; The AC front end that it is suitable for DC/DC can reach the purpose that significantly improves power.
For addressing the above problem, the utility model adopts following technical scheme:
A kind of novel numerical control power supply of the utility model pfc circuit, comprise input circuit and output circuit, be provided with two interaction BOOST topological transformation devices between described input circuit and the output circuit, output circuit connects dsp processor by feedback circuit, described dsp processor inserts two interaction BOOST topological transformation devices by gate drive circuit, described dsp processor comprises PID computing module, ADC module and a plurality of PWM module, described feedback circuit inserts the PID computing module by the ADC module, and described PID computing module inserts gate drive circuit by a plurality of PWM modules.
Two interaction BOOST topological transformation devices described in the utility model are transformed into the direct current input 385V direct current and keep the input current sine, obtain high input power factor.Have the various high-frequency harmonic electric currents of inhibition, can improve the function of voltage waveform distortion and current spike effectively; The AC front end that it is suitable for DC/DC can reach the purpose that significantly improves power.
Description of drawings
Fig. 1 is the utility model schematic block circuit diagram.
Fig. 2 is the utility model circuit theory diagrams.
Embodiment
As Fig. 1, shown in Figure 2, a kind of novel numerical control power supply of the utility model pfc circuit, comprise input circuit and output circuit, be provided with two interaction BOOST topological transformation devices between described input circuit and the output circuit, output circuit connects dsp processor by feedback circuit, described dsp processor inserts two interaction BOOST topological transformation devices by gate drive circuit, described dsp processor comprises the PID computing module, ADC module and a plurality of PWM module, described feedback circuit inserts the PID computing module by the ADC module, and described PID computing module inserts gate drive circuit by a plurality of PWM modules.
Two interaction BOOST topological transformation devices described in the utility model are transformed into the direct current input 385V direct current and keep the input current sine, obtain high input power factor.Have the various high-frequency harmonic electric currents of inhibition, can improve the function of voltage waveform distortion and current spike effectively; The AC front end that it is suitable for DC/DC can reach the purpose that significantly improves power.
It should be noted that at last: above embodiment only in order to the explanation the utility model and and the described technical scheme of unrestricted the utility model; Therefore, although this specification has been described in detail the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technical scheme and the improvement thereof of spirit and scope of the present utility model, all should be encompassed in the claim scope of the present utility model.
Claims (1)
1. novel numerical control power supply pfc circuit, comprise input circuit and output circuit, it is characterized in that: be provided with two interaction BOOST topological transformation devices between described input circuit and the output circuit, output circuit connects dsp processor by feedback circuit, described dsp processor inserts two interaction BOOST topological transformation devices by gate drive circuit, described dsp processor comprises PID computing module, ADC module and a plurality of PWM module, described feedback circuit inserts the PID computing module by the ADC module, and described PID computing module inserts gate drive circuit by a plurality of PWM modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201755037U CN201440634U (en) | 2009-08-21 | 2009-08-21 | Novel digital control power PFC circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201755037U CN201440634U (en) | 2009-08-21 | 2009-08-21 | Novel digital control power PFC circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201440634U true CN201440634U (en) | 2010-04-21 |
Family
ID=42545293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201755037U Expired - Fee Related CN201440634U (en) | 2009-08-21 | 2009-08-21 | Novel digital control power PFC circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201440634U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753333A (en) * | 2013-12-31 | 2015-07-01 | 德州仪器公司 | Multiple output integrated power factor correction |
| CN107306461A (en) * | 2016-04-25 | 2017-10-31 | 佛山市顺德区美的电热电器制造有限公司 | Power circuit and electromagnetic heater |
| CN107528464A (en) * | 2017-09-22 | 2017-12-29 | 郑州云海信息技术有限公司 | A kind of frequency modulating device and method of lifting PFC efficiency |
-
2009
- 2009-08-21 CN CN2009201755037U patent/CN201440634U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753333A (en) * | 2013-12-31 | 2015-07-01 | 德州仪器公司 | Multiple output integrated power factor correction |
| CN104753333B (en) * | 2013-12-31 | 2017-12-22 | 德州仪器公司 | Multi output integrated power factor correcting |
| US9912229B2 (en) | 2013-12-31 | 2018-03-06 | Texas Instruments Incorporated | Multiple output integrated power factor correction |
| US10476375B2 (en) | 2013-12-31 | 2019-11-12 | Texas Instruments Incorporated | Multiple output integrated power factor correction |
| CN107306461A (en) * | 2016-04-25 | 2017-10-31 | 佛山市顺德区美的电热电器制造有限公司 | Power circuit and electromagnetic heater |
| CN107528464A (en) * | 2017-09-22 | 2017-12-29 | 郑州云海信息技术有限公司 | A kind of frequency modulating device and method of lifting PFC efficiency |
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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: 20100421 Termination date: 20150821 |
|
| EXPY | Termination of patent right or utility model |