CN201440637U - Novel digital power phase-shifted full-bridge DC/DC converter - Google Patents
Novel digital power phase-shifted full-bridge DC/DC converter Download PDFInfo
- Publication number
- CN201440637U CN201440637U CN2009201755041U CN200920175504U CN201440637U CN 201440637 U CN201440637 U CN 201440637U CN 2009201755041 U CN2009201755041 U CN 2009201755041U CN 200920175504 U CN200920175504 U CN 200920175504U CN 201440637 U CN201440637 U CN 201440637U
- Authority
- CN
- China
- Prior art keywords
- circuit
- bridge
- output
- converter
- digital power
- Prior art date
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
Abstract
The utility model discloses a novel digital power phase-shifted full-bridge DC/DC converter, comprising an input circuit and an output circuit; an H bridge circuit, a switch transformer and a rectification filtering circuit are arranged between the input circuit and the output circuit, the output circuit is connected with a DSP signal processing circuit by a feedback circuit, and the DSP signal processing circuit is connected with the H bridge circuit by a gate driving circuit; the novel digital power phase-shifted full-bridge DC/DC converter converts direct current voltage Vbus supplied by PFC into direct current voltage Vo to output; the feedback circuit measures output direct current voltage and switches on/off a primary side circuit of the switch transformer, and the DSP carries out control operation according to the measuring value, so as to lead the output voltage or current to be constant; by adopting the structure, higher output power is obtained compared with the topology structure.
Description
Technical field
The utility model relates to a kind of new digital power supply phase-shifting full-bridge DC/DC converter
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 (TotalHarmonic Distortion) 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 overcome the defective of prior art, and a kind of new digital power supply phase-shifting full-bridge DC/DC converter is provided, and it can
For addressing the above problem, the utility model adopts following technical scheme:
A kind of new digital power supply of the utility model phase-shifting full-bridge DC/DC converter, comprise input circuit and output circuit, be provided with H bridge circuit, switch transformer and current rectifying and wave filtering circuit between described input circuit and the output circuit, described output circuit connects the DSP signal processing circuit by feedback circuit, and described DSP signal processing circuit inserts the H bridge circuit by gate drive circuit.
The direct voltage Vbus that the utility model is brought PFC is transformed into direct voltage Vo output.Feedback loop is measured output dc voltage and the former limit of switch transformer circuit, and DSP carries out the control computing according to measured value, makes output voltage or current constant.This structure can access bigger power output than other topological structure.
Description of drawings
Fig. 1 is the utility model schematic block circuit diagram.
Fig. 2 is the utility model circuit theory diagrams.
Embodiment
As shown in Figure 1 and Figure 2, a kind of new digital power supply of the utility model phase-shifting full-bridge DC/DC converter, comprise input circuit and output circuit, be provided with H bridge circuit, switch transformer and current rectifying and wave filtering circuit between described input circuit and the output circuit, described output circuit connects the DSP signal processing circuit by feedback circuit, and described DSP signal processing circuit inserts the H bridge circuit by gate drive circuit.
The direct voltage Vbus that the utility model is brought PFC is transformed into direct voltage Vo output.Feedback loop is measured output dc voltage and the former limit of switch transformer circuit, and DSP carries out the control computing according to measured value, makes output voltage or current constant.This structure can access bigger power output than other topological structure.
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. new digital power supply phase-shifting full-bridge DC/DC converter, comprise input circuit and output circuit, it is characterized in that: be provided with H bridge circuit, switch transformer and current rectifying and wave filtering circuit between described input circuit and the output circuit, described output circuit connects the DSP signal processing circuit by feedback circuit, and described DSP signal processing circuit inserts the H bridge circuit by gate drive circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201755041U CN201440637U (en) | 2009-08-21 | 2009-08-21 | Novel digital power phase-shifted full-bridge DC/DC converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201755041U CN201440637U (en) | 2009-08-21 | 2009-08-21 | Novel digital power phase-shifted full-bridge DC/DC converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201440637U true CN201440637U (en) | 2010-04-21 |
Family
ID=42545296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201755041U Expired - Fee Related CN201440637U (en) | 2009-08-21 | 2009-08-21 | Novel digital power phase-shifted full-bridge DC/DC converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201440637U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104734509A (en) * | 2013-12-18 | 2015-06-24 | 英飞凌科技股份有限公司 | System and method for power converter |
-
2009
- 2009-08-21 CN CN2009201755041U patent/CN201440637U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104734509A (en) * | 2013-12-18 | 2015-06-24 | 英飞凌科技股份有限公司 | System and method for power converter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102301574B (en) | PFC convertor and pfc conversion device | |
| CN201435845Y (en) | LED lamp circuit with high power factor | |
| CN202931222U (en) | Inverter power supply control device | |
| CN103683952B (en) | A kind of integration in parallel connection formula Buck-Flyback power factor correction pfc converter topology | |
| CN202918023U (en) | Battery management power module | |
| CN102780409A (en) | Unity-power-factor buck-boost circuit | |
| CN102005915B (en) | Boost and buck integrated bridge-free power factor correction (PFC) circuit | |
| CN103762839B (en) | A kind of magnetic coupling type single-phase high-gain Bridgeless power factor circuit correcting circuit | |
| CN203027134U (en) | Tri-state boosting power-factor correction circuit | |
| CN103706923B (en) | A kind of inversion welding machine | |
| CN201440634U (en) | Novel digital control power PFC circuit | |
| CN201440637U (en) | Novel digital power phase-shifted full-bridge DC/DC converter | |
| CN102769394A (en) | Single-phase controllable rectification circuit | |
| CN205212694U (en) | Two boost of common mode rejection do not have bridge PFC converter | |
| CN203942441U (en) | A kind of non-bridge PFC transducer | |
| CN202737745U (en) | Heavy-current switch power supply and heavy-current switch power supply system | |
| CN101592970B (en) | AC voltage stabilizer circuit and three-phase AC voltage stabilizer | |
| CN205212701U (en) | Two boost of Z type do not have bridge PFC converter | |
| CN107257194B (en) | Resonant converter | |
| CN206981961U (en) | A kind of arc welder power source of High Power Factor technology | |
| CN201821265U (en) | Non-polar isolation reverse converter | |
| CN203691228U (en) | Magnetic coupling type single-phase high-gain bridge-less power factor correction circuit | |
| CN201134761Y (en) | Modular high-power high-frequency IGBT inversion electric plating power source | |
| CN205160396U (en) | Two boost of high efficiency do not have bridge PFC converter | |
| CN204559387U (en) | A kind of Buck code converter improving power factor |
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 |