CN200947579Y - Power supply device with multiple power outputs - Google Patents
Power supply device with multiple power outputs Download PDFInfo
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- CN200947579Y CN200947579Y CN 200620131553 CN200620131553U CN200947579Y CN 200947579 Y CN200947579 Y CN 200947579Y CN 200620131553 CN200620131553 CN 200620131553 CN 200620131553 U CN200620131553 U CN 200620131553U CN 200947579 Y CN200947579 Y CN 200947579Y
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- 230000005611 electricity Effects 0.000 claims description 10
- 230000009466 transformation Effects 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 4
- 208000032365 Electromagnetic interference Diseases 0.000 abstract 1
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- 238000010586 diagram Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 1
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Abstract
A power supply device with multi-power output, the utility model provides the AC signal through a power source and the signal is received by an electro magnetic interference filter unit (EMI) and a rectifier unit, after the treatment of the filtering and rectifying, the full-wave/half-wave pulse DC signal is output to a reverse-current device to increase the voltage, thus to output the high-voltage power signal to drive a first load, the utility model is still provided with a DC variable voltage unit, after the voltage dropping, the low-voltage power signal is output to a second load, therefore, the power supply device that can output multi-power has greater flexibility and efficiency on the power supply, which is applicable to be applied on the displays for example, thus the utility model can make the displays supply the required low-voltage DC power supply to other peripheral devices, such as speakers, lights, 3C products, etc,.
Description
Technical field
The utility model relates to a kind of power supply device, especially a kind of power supply device that possesses many electric power outputs.
Background technology
In recent years, because electronics, computer product are very general, wherein more popular with the application surface of LCD screen, especially extend to household appliances in the LCD screen technology, so the consumer improves the requirement meeting of product thereupon, and then make producer and research staff more will pay attention to the technology aspect multi-functional and power saving, on market, just have preferable competitiveness like this.
Please refer to the TaiWan, China publication No. 200534569, two kinds of existing drive circuits have wherein been disclosed, first kind of drive circuit is directly to provide ac signal to power supply unit by electric power source, output power signal to inverter carries out exporting the high-tension electricity signal after the boost action after carrying out voltage transitions by power supply unit again, the existing power supply supply is in the ac signal of handling electric power source output, comprise the electromagnetic interference filter unit, rectification unit, power factor corrector and converting unit, by electromagnetic interference filter unit (EMI) and rectification unit receive this ac signal and involve after filtration rectification handle back output complete/the half-wave DC signal, being received by power factor corrector should be complete again/after the half-wave DC signal carries out Active PFC the output power signal to converting unit (DC-DC), carry out voltage transitions and export the low-voltage power signal to inverter after receiving electric power signal by converting unit, inverter then exports the load that the rear end connects to after boosting to the high-tension electricity signal.
Another kind of drive circuit and aforementioned drive circuit difference are, this drive circuit is the ac signal that electric power source is exported to be received this ac signal by electromagnetic interference filter unit and rectification unit and involves after filtration export entirely/the half-wave DC signal after rectification is handled, should be complete/the half-wave DC signal is the medium voltage electricity signal, and (for example electric power source is 100V, then should be complete/the straight signal of half-wave is 150V), this medium voltage electricity signal arrives and directly boosts behind inverter and export the high-tension electricity signal to load.
Yet, more than existing drive circuit be applied on the flat-panel screens, only can provide the high-tension electricity signal to this load (being cold cathode fluorescent lamp CCFL) separately, the result causes the display that appears on the market can't set up peg graft the voluntarily extra connectivity port of required ancillary equipment for the user, for example: loudspeaker, lampet, or even can respond to that the screen image changes and the 3C Product of having an effect etc.Therefore,, and it is applied in field of display, will makes the power supply supply side have more elasticity and efficient, with existing design structure on the breakthrough industry if a kind of power supply device that possesses many electric power outputs (comprising the low-voltage direct electric power signal) can be provided.
The utility model content
The purpose of this utility model is to provide a kind of power supply device that possesses many electric power outputs, and its electric power output can comprise a high pressure and a low-voltage direct electric power signal at least, to drive corresponding different loads.
For realizing this novel above-mentioned purpose, according to the power supply device that possesses many electric power outputs of the present utility model, be used to receive at least two electric power outputs of AC signal and supply, it is characterized in that comprising: electromagnetic interference filter unit and rectification unit, be used to receive ac signal, and export complete/half-wave pulse wave direct current signal after involving the rectification processing after filtration; Inverter is used for receiving complete/half-wave pulse wave direct current signal, and the back output high-tension electricity signal that boosts; And the direct current transformation unit, be used for receiving complete/half-wave pulse wave direct current signal, and carry out exporting the low-voltage power signal after the step-down.
Thus, the utility model can provide the power supply device of electric power more than one output, has more elasticity and efficient in the power supply supply, is applied to field of display and then can makes the connectivity port that display has additionally provides low-voltage direct, for user's use of pegging graft.
Description of drawings
Fig. 1 is the circuit block diagram of the utility model preferred embodiment.
Fig. 2 is the circuit block diagram of the utility model preferred embodiment.
Fig. 3 is the circuit block diagram of another preferred embodiment of the utility model.
Embodiment
Relevant detailed description of the present utility model and technology contents, existing accompanying drawings is as follows:
Please refer to Fig. 1, the circuit block diagram of its expression the utility model preferred embodiment, as shown in the figure: the utility model is a kind of power supply device that possesses many electric power outputs, be by electric power source 10 (it can be civil power) provide ac signal to middle volt circuit system 20 and with this in the low-voltage circuit system 30 that is in parallel of volt circuit system 20, respectively in order to drive first load 40 and second load 50.
Then please refer to Fig. 2, should middle volt circuit system 20 possess electromagnetic interference filter unit 21, rectification unit 22, power factor corrector 23 and inverter 24, to this first load 50, this first load 50 can be cold cathode fluorescent lamp (CCFL) in order to output high-tension electricity signal; 30 of this low-voltage circuit systems possess electromagnetic interference filter unit 31, rectification unit 32 and direct current transformation unit 33, and to this second load 50, this second load 50 can be loudspeaker, light fixture or other various 3C Products etc. in order to output low-voltage power signal.Particularly, drive circuit of the present utility model comprises:
Electromagnetic interference filter unit 21,31 and be the rectification unit 22,32 of diode bridge rectifier, above-mentioned electromagnetic interference filter unit 21, rectification unit 22 are in parallel with electromagnetic interference filter unit 31, rectification unit 32, and receive the ac signal that electric power source 10 is provided respectively, and export complete/half-wave pulse wave direct current signal after involving the rectification processing after filtration;
Direct current transformation unit 33, this direct current transformation unit 33 is the voltage-dropping type transformer, is used for receiving being somebody's turn to do complete/half-wave pulse wave direct current signal, and carries out exporting low-voltage power signal to the second load 50 after the step-down.
Please refer to Fig. 3, it is the circuit block diagram of another preferred embodiment of the utility model, as shown in the figure: this electromagnetic interference filter unit 21,31 and rectification unit 22,32 also can be integrated becomes electromagnetic interference filter unit 21a and rectification unit 22a, be connected to this inverter 24 (or power factor corrector 23 by this rectification unit 22a shunting again, whether look it possesses) and this direct current transformation unit 33, effectively the composition member of simplified driving circuit.
In sum, the utility model be by electric power source 10 provide ac signal to middle volt circuit system 20 and with this in the low-voltage circuit system 30 that is in parallel of volt circuit system 20, respectively in order to drive first load 40 and second load 50.Therefore the power supply device of many electric power outputs can be provided, in the power supply supply, have more elasticity and efficient, can be applicable to for example field of display, make display have the connectivity port of low-voltage direct output, provide as required low-voltage dc power supplies of device such as loudspeaker, light fixture, 3C Products, with existing design structure on the breakthrough industry.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model.In the above-described embodiments, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (6)
1. a power supply device that possesses many electric power outputs is used to receive at least two electric power outputs of AC signal and supply, it is characterized in that described power supply device comprises:
Electromagnetic interference filter unit (21) and rectification unit (22) are used to receive described ac signal, and export complete/half-wave pulse wave direct current signal after involving the rectification processing after filtration;
Inverter (24), be used to receive described complete/half-wave pulse wave direct current signal, and the back output high-tension electricity signal that boosts; And
Direct current transformation unit (33), be used to receive described complete/half-wave pulse wave direct current signal, and carry out output low-voltage power signal after the step-down.
2. the power supply device that possesses many electric power outputs according to claim 1 is characterized in that described ac signal is to be provided by civil power.
3. the power supply device that possesses many electric power outputs according to claim 1 is characterized in that described rectification unit (22) is a diode bridge rectifier.
4. the power supply device that possesses many electric power outputs according to claim 1, it is characterized in that, described power supply device has second electromagnetic interference filter unit (31) and second rectification unit (32) in parallel with described electromagnetic interference filter unit (21) and rectification unit (22), and described rectification unit (22), described second rectification unit (32) export respectively entirely/half-wave pulse wave direct current signal is to described inverter (24) and described direct current transformation unit (33).
5. the power supply device that possesses many electric power outputs according to claim 1, it is characterized in that, described rectification unit (22) couple receive described complete/power factor corrector (23) of half-wave pulse wave direct current signal, will be described entirely/half-wave pulse wave direct current signal carries out exporting described inverter (24) to after the voltage transitions.
6. the power supply device that possesses many electric power outputs according to claim 5, it is characterized in that, described power supply device has second electromagnetic interference filter unit (31) and second rectification unit (32) in parallel with described electromagnetic interference filter unit (21) and rectification unit (22), and described rectification unit (22), described second rectification unit (32) export respectively entirely/half-wave pulse wave direct current signal is to described power factor corrector (23) and described direct current transformation unit (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620131553 CN200947579Y (en) | 2006-08-23 | 2006-08-23 | Power supply device with multiple power outputs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620131553 CN200947579Y (en) | 2006-08-23 | 2006-08-23 | Power supply device with multiple power outputs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200947579Y true CN200947579Y (en) | 2007-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620131553 Expired - Fee Related CN200947579Y (en) | 2006-08-23 | 2006-08-23 | Power supply device with multiple power outputs |
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| Country | Link |
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| CN (1) | CN200947579Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787827A (en) * | 2016-11-15 | 2017-05-31 | 深圳Tcl数字技术有限公司 | Switching Power Supply and television set |
-
2006
- 2006-08-23 CN CN 200620131553 patent/CN200947579Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787827A (en) * | 2016-11-15 | 2017-05-31 | 深圳Tcl数字技术有限公司 | Switching Power Supply and television set |
| WO2018090454A1 (en) * | 2016-11-15 | 2018-05-24 | 深圳Tcl数字技术有限公司 | Switching power supply and television |
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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: 20070912 Termination date: 20100823 |