CN2325922Y - AC-DC insulation module - Google Patents
AC-DC insulation module Download PDFInfo
- Publication number
- CN2325922Y CN2325922Y CN 97214424 CN97214424U CN2325922Y CN 2325922 Y CN2325922 Y CN 2325922Y CN 97214424 CN97214424 CN 97214424 CN 97214424 U CN97214424 U CN 97214424U CN 2325922 Y CN2325922 Y CN 2325922Y
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- frequency
- voltage
- electrically connected
- electricity
- primary coil
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Abstract
The utility model relates to an AC-DC insulation module. The AC commercial power which is rectified is supplied to a high-frequency oscillator, so a high-frequency pulse is generated to convert the voltage and transfer the energy by a high-frequency transformer in a mode of electricity-magnetism-electricity, and the rectification and the voltage stabilization for the high-frequency pulse are implemented until a safe DC power supply is obtained. In the high-frequency transformer, an insulating frame of a primary coil and an insulating frame of a secondary coil are inlaid on a ferrite core in an adjacent way. The utility model is characterized in that the high-frequency oscillator which is rectified and is supplied with electricity by the commercial power is electrically connected with the primary coil, so that a rectifying voltage stabilizer at the load end can be electrically connected with the secondary coil.
Description
The utility model relates to and a kind ofly alternating current is converted to galvanic rectifier power source, curing module especially insulated from each other.
At present, known rectifier power source is made up of low-frequency transformer (silicon steel sheet, primary and secondary winding coil), rectifier, filter element, is operated in 50 hertz.Volume is big, efficient is low, temperature rise, filter effect are poor.
The purpose of this utility model provides and a kind ofly converts alternating current to galvanic safety power supply, high-insulation between its input and the output.Withstand voltage more than 5000 volts, become curing module easy to use.
The purpose of this utility model is achieved in that 50 hz AC commercial power rectification.Become direct current.The supply high frequency oscillator produces 500 KHz high-frequency impulses.And via high frequency transformer, with electricity-magnetic-electric mode changing voltage and transmission of power.The Insulating frame of primary coil is adjacent with the Insulating frame of secondary coil to be inlaid on the FERRITE CORE.High-frequency generator through the commercial power rectification power supply is electrically connected with primary coil.Rectifying pressurizer for load end is electrically connected with secondary coil.Can obtain the DC power supply that insulate fully with civil power.
Owing to adopt such scheme.Can produce the safe DC power supply of saving low-frequency transformer.Efficient is up to more than 90%, and cost is low, and volume is little, and is easy to use.
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is circuit theory diagrams of the present utility model.
Fig. 2 is 50 hz AC mains waveform.
Fig. 3 is with the direct current waveform behind the commercial power rectification.
Fig. 4 is the high-frequency generator impulse waveform.
Fig. 5 is with the direct current waveform after high-frequency impulse rectification and the voltage stabilizing.
Fig. 6 is the high frequency transformer structure.
Fig. 7 is the integral installation structure.
Integrated 8. primary coil of 1.50 hz AC civil power 2. low frequency rectifiers, 3. power factor correction 4. high-frequency generators, 5. high frequency transformer 6. hf rectifiers, 7. buck switch voltage-stabilizings 9. secondary coils 10. feedback coils among the figure
In Fig. 1 embodiment, 50 hz AC civil powers 1 (waveform is seen Fig. 2) become pulsating direct current (waveform is seen Fig. 3) through low frequency rectifier 2.But its ripple composition of power factor correction 3 filterings.Significantly improve more than the power factor to 0.9 of circuit.Transistor collector and base stage form the positive feedback relation, produce the higher-order of oscillation (waveform is seen Fig. 4) of 500 KHz.Collector electrode output rectangular pulse enters high frequency transformer 5.This part circuit is not established voltage stabilizing function, finishes and voltage stabilizing is placed on load end.The structure of high frequency transformer is seen Fig. 6.Primary coil 8, feedback coil 10 and secondary coil 9 on two Insulating frames, are inlaid on the high frequency ferrite core respectively.This structure has guaranteed to have high insulation property between primary and secondary, and is withstand voltage more than 5000 volts.The secondary high-frequency current of high frequency transformer is through hf rectifier 6.Obtain an intermediate voltage.Its amplitude is the twice of output DC voltage-stabilizing value.Pass through the buck switch voltage-stabilizing more integrated 7.Carry out accurate voltage stabilizing.Integrated inside has perfect overcurrent, short-circuit protection and overheat protective function.This design that high-frequency generator and voltage stabilizing function are separated has unique advantage: can simplify high-frequency generator; Utilizing the middle dc voltage value is the twice of voltage stabilizing value, and load capacity is strengthened, and improves the precision of voltage regulation.For reduced volume, use the SMD device of SMD, adopt the SMT surface mounting technology.On ceramic substrate, make printed substrate with silk screen printing and sintering process.After the whole machine installation, draw AC input terminal and dc output end, with the insulating resin encapsulation, become curing module again.The safe DC voltage waveform of output is seen Fig. 5.The integral installation structure is seen Fig. 7.
Claims (1)
- A kind of interchange--D.C. isolation module, in high frequency transformer, the Insulating frame of primary coil is adjacent with the Insulating frame of secondary coil to be inlaid on the FERRITE CORE, it is characterized in that: the high-frequency generator through the commercial power rectification power supply is electrically connected with primary coil, supplies the rectifying pressurizer of load end to be electrically connected with secondary coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97214424 CN2325922Y (en) | 1997-04-23 | 1997-04-23 | AC-DC insulation module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97214424 CN2325922Y (en) | 1997-04-23 | 1997-04-23 | AC-DC insulation module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2325922Y true CN2325922Y (en) | 1999-06-23 |
Family
ID=33931886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97214424 Expired - Fee Related CN2325922Y (en) | 1997-04-23 | 1997-04-23 | AC-DC insulation module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2325922Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004086588A1 (en) * | 2003-03-27 | 2004-10-07 | Yuanhong Chen | A wireless power supply apparatus |
-
1997
- 1997-04-23 CN CN 97214424 patent/CN2325922Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004086588A1 (en) * | 2003-03-27 | 2004-10-07 | Yuanhong Chen | A wireless power supply apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |