CN201533248U - High-power switching power supply - Google Patents
High-power switching power supply Download PDFInfo
- Publication number
- CN201533248U CN201533248U CN2009202318259U CN200920231825U CN201533248U CN 201533248 U CN201533248 U CN 201533248U CN 2009202318259 U CN2009202318259 U CN 2009202318259U CN 200920231825 U CN200920231825 U CN 200920231825U CN 201533248 U CN201533248 U CN 201533248U
- Authority
- CN
- China
- Prior art keywords
- power supply
- switching power
- main circuit
- output
- control system
- 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
Landscapes
- Dc-Dc Converters (AREA)
Abstract
The utility model discloses a high-power switching power supply. The output of commercial power input rectifying equipment is connected with the input of a main circuit of the switching power supply, the output of the main circuit of the switching power supply is connected with a load, a current-voltage detection module is connected between the main circuit of the switching power supply and the load, the output of the current-voltage detection module is connected with the input of a control system, one output of the control system is connected with the main circuit of the switching power supply, and the other output is connected with the main circuit of the switching power supply through a protective circuit. A high-power switching element IGBT replaces the traditional MOS pipe, the make-and-break of the IGBT is realized through the control system consisting of a TMS 320 and an LF 2812, and the power can reach 20 KVA.
Description
Technical field
The utility model relates to a kind of high power switching power supply.
Background technology
Traditional middle low power Switching Power Supply adopts field-effect transistor more, and the through-current capability of field-effect transistor and voltage endurance capability have limited the power of Switching Power Supply, even adopt new topological structure, it is very big that power also is difficult to do; The break-make of switching device is generally finished by PWM (pulse-width modulation) control chip of specialty, but is not suitable for high power switching power supply.
Summary of the invention
The purpose of this utility model is for overcoming the defective of prior art, providing a kind of topological structure of circuit to pass through to adopt full-bridge circuit, the high power switching power supply of transformer secondary output rectification employing full-wave rectification.
The technical solution adopted in the utility model is: the output of civil power input rectifying equipment connects the input of Switching Power Supply main circuit; the output of Switching Power Supply main circuit connects load; between Switching Power Supply main circuit and load, connect the current/voltage detection module; the input of the output connection control system of current/voltage detection module; an output of control system connects the Switching Power Supply main circuit, and another output connects the Switching Power Supply main circuit by protective circuit.
The beneficial effects of the utility model are: select for use high-power switch device IGBT to replace traditional metal-oxide-semiconductor, the break-make of IGBT realizes that by the control system that TMS320LF2812 forms power can reach 20KVA.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1. civil power input equipment; 2. Switching Power Supply main circuit; 3. load; 4. current/voltage detection module; 5. control system; 6. protective circuit.
Embodiment
As shown in Figure 1, the output of civil power input rectifying equipment 1 connects the input of Switching Power Supply main circuit 2, the break-make that has 4 IGBT in the Switching Power Supply main circuit 2, the topological structure of circuit is by adopting full-bridge circuit, full-wave rectification is adopted in the transformer secondary output rectification, selects all-controlling power electronics device IGBT for use.The output of Switching Power Supply main circuit 2 connects load 3; between Switching Power Supply main circuit 2 and load 3, connect current/voltage detection module 4; the input of the output connection control system 5 of current/voltage detection module 4; an output of control system 5 connects Switching Power Supply main circuit 2; another output connects Switching Power Supply main circuit 2 by protective circuit 6, and control system 5 is that core is formed with dsp chip TMS320LF2812.
Behind civil power input rectifying equipment 1 input rectifying, give Switching Power Supply main circuit 2, the control system of being made up of dsp chip TMS320LF2812 5 produces the PWM ripple, the break-make of 4 IGBT in the control switching main circuit 2, load 3 is exported in 2 work of Switching Power Supply main circuit, and current/voltage detection module 4 detects output current in real time, Voltage Feedback is given control system 5; Control system 5 is according to feedback, again switching device IGBT in the control switching main circuit 2 and protective circuit 6; Protective circuit 6 is 4 IGBT in the protection switch electric power main circuit 2.
Claims (1)
1. high power switching power supply; it is characterized in that: the output of civil power input rectifying equipment (1) connects the input of Switching Power Supply main circuit (2); the output of Switching Power Supply main circuit (2) connects load (3); between Switching Power Supply main circuit (2) and load (3), connect current/voltage detection module (4); the input of the output connection control system (5) of current/voltage detection module (4); an output of control system (5) connects Switching Power Supply main circuit (2), and another output connects Switching Power Supply main circuit (2) by protective circuit (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202318259U CN201533248U (en) | 2009-09-14 | 2009-09-14 | High-power switching power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202318259U CN201533248U (en) | 2009-09-14 | 2009-09-14 | High-power switching power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201533248U true CN201533248U (en) | 2010-07-21 |
Family
ID=42528647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202318259U Expired - Fee Related CN201533248U (en) | 2009-09-14 | 2009-09-14 | High-power switching power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201533248U (en) |
-
2009
- 2009-09-14 CN CN2009202318259U patent/CN201533248U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202840965U (en) | Power supply conversion device with control switch | |
| US8503198B2 (en) | High boost ratio DC converter | |
| CN101997434A (en) | Synchronous rectification device | |
| CN203368326U (en) | Boost circuit and LED driving power supply | |
| CN102105010A (en) | LED drive circuit | |
| CN102723869A (en) | Power converter | |
| CN102005915B (en) | Boost and buck integrated bridge-free power factor correction (PFC) circuit | |
| CN101969722A (en) | LED drive circuit and LED lamp | |
| TW201342782A (en) | Power converting device with control switch | |
| CN203590550U (en) | Large-power LED lamp realized by adopting voltage-isolated fly-back controller | |
| CN201533248U (en) | High-power switching power supply | |
| CN202759386U (en) | Flyback switch power supply circuit and flyback switch power supply | |
| CN201766502U (en) | Circuit topological structure of non-isolation type zero-voltage soft switching DC (direct current) to DC converter | |
| CN101847937A (en) | Power module | |
| CN101009470A (en) | A power circuit for the calculating device | |
| CN103762841B (en) | A kind of embedded single switch Buck-Boost converter | |
| CN103825447A (en) | Anti-surge bridgeless power factor correction circuit | |
| CN203691272U (en) | Single/three-phase wide range input switch power supply | |
| CN102223058B (en) | Interlaced on-line isolated double-cuk circuit | |
| CN201256280Y (en) | Electric power conversion circuit for residual current actuating relay | |
| CN202334273U (en) | Controllable silicon constant current driving circuit based on planar transformer | |
| CN201955393U (en) | Single-phase guide rail type carrier wave electric energy meter | |
| CN205407592U (en) | No -voltage quasi -resonance boost circuit | |
| CN206727873U (en) | A kind of high efficiency energy two-way DC converter | |
| CN107404230B (en) | Step-down type dc converter |
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: 20100721 Termination date: 20100914 |