CN101753043A - Single-stage high-power-factor feedback frequency conversion type resonant energy control circuit - Google Patents
Single-stage high-power-factor feedback frequency conversion type resonant energy control circuit Download PDFInfo
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- CN101753043A CN101753043A CN200810219935A CN200810219935A CN101753043A CN 101753043 A CN101753043 A CN 101753043A CN 200810219935 A CN200810219935 A CN 200810219935A CN 200810219935 A CN200810219935 A CN 200810219935A CN 101753043 A CN101753043 A CN 101753043A
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- frequency conversion
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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
Abstract
The invention relates to a single-stage high-power-factor feedback frequency conversion type resonant energy control circuit which comprises a set of power filter circuits, a set of electronic circuit combination loops, a set of high-power-factor pulse width control loops and a set of resonant networks, wherein each high-power-factor pulse width control loop internally comprises a transformer, two winding coils and a metal-oxide-semiconductor field effect transistor (MOSFET); and high-power-factor fixing power with settable feedback can be reached through the electronic circuit combination loops and resonant loops. The technology can be used for tube dimming and also ensure that the light emitting efficiency of tubes is improved, is suitable for tunes of various types of energy-saving lamps, daylight lamps, LED lamps, HID lamps, and the like, and can reduce the cost.
Description
Technical field
The present invention is based on the design principle of general high frequency electric source supply, high merit only is integrated into by a transformer around two groups of coils because of loop and semibridge system resonant tank, an and field-effect transistor (MOSFET), reach the distribution of resonant energy, make it possess high merit because of, adjustable fixedly back coupling resonant energy, so can replace the circuit of prior art.
Background technology
1. present control chip on the market need add a chip for driving again, and it includes AD converter, the cost height, and it improves merit and improves the IC of merit because of usefulness because of the aspect also need add.
2. improve on the market at present public because of mode:
(1) need with inductance, electric capacity, a field-effect transistor (MOSFET) with the power supply of AC after control is integrated, make that the voltage of civil power and electric current are synchronous, improve merit because of.
(2) one pole is high public does not promptly add field-effect transistor (MOSFET) because of driving, and utilizes one of them field-effect transistor (MOSFET) in the semi-bridge converter device to substitute, improve merit because of.
3. all want a plug-in field-effect transistor (MOSFET) drive IC, cost height for above two.
4. at present on the market aspect the fluorescent tube illumination, pipeline start up by preheating needs heating electrode reach the startup fluorescent tube, after the startup, continues the heating electrode running, and this can cause damage.
5. tunable optical control mode on the market at present:
(1) frequency modulation control: borrow control switching frequency size, change lamp current, reach the purpose of light modulation, if this method is adjusted different wattages, resonant tank is under the disresonance state, so conversion efficiency reduces, and luminous efficiency reduces.
(2) amplitude adjustment control: this circuit is under fixing resonance frequency, adjusts the height of input voltage, and this method can't start when illumination is low.
(3) phase modulation control: this circuit is by the operating power frequency and is adjusted, and reaches the effect of light modulation with this, and this method need be with 4 full-bridge switches, cost height.
Summary of the invention
Main purpose of the present invention is to provide a kind of single-stage high-power-factor feedback frequency conversion type resonant energy control circuit, high merit is because of comprising in the pulse bandwidth control loop that a transformer is around two groups of coils and a field-effect transistor (MOSFET), see through electronic circuit combined loop and resonant tank, can reach high merit because of, can set the constant power of back coupling, this technology can be used for the fluorescent tube light modulation, lamp luminescence efficient is improved, be applicable to fluorescent tubes such as various electricity-saving lamp, fluorescent lamp, LED lamp, HID lamp, cost is reduced.
Technology contents of the present invention is: a kind of single-stage high-power-factor feedback frequency conversion type resonant energy control circuit, and it includes an electric source filter circuit; One electronic circuit combined loop; One high merit includes a transformer around two groups of coils, a diode, electric capacity, a field-effect transistor (MOSFET) and a resistance because of the pulse bandwidth control loop; One resonant network.
Further technology contents of the present invention is: described a kind of single-stage high-power-factor feedback frequency conversion type resonant energy control circuit, it is characterized in that electric source filter circuit and this add AC power and electrically connect, this can be added the AC power rectifying and wave-filtering and become DC power supply.
Further technology contents of the present invention is: described a kind of single-stage high-power-factor feedback frequency conversion type resonant energy control circuit is characterized in that the electronic circuit combined loop includes soft startup, electric current and voltage back coupling, resonance frequency Correction and Control, pulse bandwidth output and can adjust resonant energy setting, high merit because of functions such as controls.
Further technology contents of the present invention is: described a kind of single-stage high-power-factor feedback frequency conversion type resonant energy control circuit, it is characterized in that high merit is because of the pulse bandwidth control loop, but operate in high frequency and work done because of revising, and electrically connect with this electric source filter circuit, the DC power supply that this electric source filter circuit can be imported, see through one of switching of field-effect transistor (MOSFET) high frequency and transformer group coil and diode, electric capacity, jointly with merit because of revising, see through another group coil of transformer simultaneously, produce and promote the resonant network energy.
Further technology contents of the present invention is: described a kind of single-stage high-power-factor feedback frequency conversion type resonant energy control circuit, it is characterized in that high merit calculates out the pulse bandwidth of field-effect transistor (MOSFET) conducting according to the resonance characteristics of resonant network because of the pulse bandwidth control loop, if this pulse bandwidth is fixedly the time, change the time length of field-effect transistor (MOSFET) OFF, can reach the back coupling resonant energy of adjustment, it is the purpose of light modulation, lamp luminescence efficient when also possessing simultaneously the light modulation of raising, this is former comprehends the state running down that allows resonant tank be in resonance forever.
Further technology contents of the present invention is: described a kind of single-stage high-power-factor feedback frequency conversion type resonant energy control circuit, it is characterized in that high merit is because of the pulse bandwidth control loop, when power supply changes, the electronic circuit combined loop can be detected the signal of resistance and the voltage signal on the electric capacity, after the judgement of electronic circuit combined loop, the signal that a pulse wave width modulation is provided is to field-effect transistor (MOSFET), this signal cooperates a transformer around two groups of coils, a diode, an electric capacity, with make resonant energy in the load to control to improve simultaneously merit because of, be used for fluorescent tube, illumination does not change illumination because of the input voltage change.
Compared with prior art, the invention has the beneficial effects as follows: utilize the electronic circuit combined loop, directly drive a field-effect transistor (MOSFET), when field-effect transistor (MOSFET) conducting, store energy discharges the resonant energy of resonant network simultaneously on transformer; When field-effect transistor (MOSFET) OFF, transformer provides energy to resonant network, so can obtain a resonant energy in the load of resonant network, transformer also provides an energy to be stored into electric capacity through diode simultaneously, so can make merit because of improving.
The further beneficial effect of the present invention is: when power supply changes, the electronic circuit combined loop can be detected the signal of resistance and the voltage signal on the electric capacity, after the judgement of electronic circuit combined loop, the signal that a pulse wave width modulation is provided so can reach the fixing resonant energy back coupling control of a kind of simple type to field-effect transistor (MOSFET).
The present invention at further beneficial effect is: aspect the adjustment resonant energy, calculate out the pulse bandwidth of field-effect transistor (MOSFET) conducting according to the resonance characteristics of resonant network, in the time of as if this pulse bandwidth fixedly, change the time length of field-effect transistor (MOSFET) OFF, can reach and adjust the back coupling resonant energy, be the purpose of light modulation, lamp luminescence efficient when also possessing simultaneously the light modulation of raising, this is former comprehends the state running down that allows resonant tank be in resonance forever.
Below in conjunction with the drawings and specific embodiments the present invention is further described.
Description of drawings
Fig. 1 is a single-stage high-power-factor feedback frequency conversion type resonant energy control circuit circuit diagram of the present invention.
Fig. 2 is the dimmer design circuit diagram of prior art.
Fig. 3 is that the low merit of the two-stage of prior art is because of fluorescence lamp electronic ballast circuit figure.
Fig. 4 is that the high merit of the two-stage of prior art is because of fluorescence lamp electronic ballast circuit figure.
Fig. 5 is the single-stage high-power-factor fluorescence lamp electronic ballast circuit figure of prior art.
Fig. 6 is that the low merit of the single-stage of prior art is because of fluorescence lamp electronic ballast circuit figure.
[primary clustering symbol description]
1 electric source filter circuit, 2 electronic circuit combined loop
3 high merits are because of pulse bandwidth control loop 4 resonant networks
31 transformers, 32 diodes
33 electric capacity, 34 field-effect transistors (MOSFET)
41 loads of 35 resistance
Embodiment
In order to more fully understand technology contents of the present invention,, the technical scheme of inventing is described further and illustrates below according to accompanying drawing and in conjunction with embodiments of the invention.
See also shown in Figure 1, the present invention is a kind of single-stage high-power-factor feedback frequency conversion type resonant energy control circuit, and this circuit includes 1, one group of electronic circuit combined loop 2 of one group of electric source filter circuit, one group of high merit is because of 3, one groups of resonant networks 4 of pulse bandwidth control loop.
Utilize electronic circuit combined loop 2, directly drive a field-effect transistor (MOSFET) 34, when field-effect transistor (MOSFET) 34 conductings, store energy discharges the resonant energy of resonant network 4 simultaneously on transformer 31; When field-effect transistor (MOSFET) 34OFF, transformer 31 provides energy to resonant network 4, so the load 41 at resonant network 4 can obtain a resonant energy, simultaneously transformer 31 also provides one to be stored into the energy of electric capacity 33 through diode 32, so can make merit because of improving.
When electric source filter circuit 1 power supply changes, electronic circuit combined loop 2 can be detected the signal of resistance 35 and the voltage signal on the electric capacity 33, after the judgement of electronic circuit combined loop 2, the signal that a pulse wave width modulation is provided so can reach the fixing resonant energy back coupling control of a kind of simple type to field-effect transistor (MOSFET) 34.
Claims (6)
1. single-stage high-power-factor feedback frequency conversion type resonant energy control circuit, it includes:
One electric source filter circuit;
One electronic circuit combined loop;
One high merit includes a transformer around two groups of coils, a diode, electric capacity, a field-effect transistor (MOSFET) and a resistance because of the pulse bandwidth control loop;
One resonant network.
2. a kind of single-stage high-power-factor feedback frequency conversion type resonant energy control circuit according to claim 1 is characterized in that electric source filter circuit and this add AC power and electrically connect, and this can be added the AC power rectifying and wave-filtering and become DC power supply.
3. a kind of single-stage high-power-factor feedback frequency conversion type resonant energy control circuit according to claim 1 is characterized in that the electronic circuit combined loop includes soft startup, electric current and voltage back coupling, resonance frequency Correction and Control, pulse bandwidth output and can adjust resonant energy setting, high merit because of functions such as controls.
4. a kind of single-stage high-power-factor feedback frequency conversion type resonant energy control circuit according to claim 1, it is characterized in that high merit is because of the pulse bandwidth control loop, but operate in high frequency and work done because of revising, and electrically connect with this electric source filter circuit, the DC power supply that this electric source filter circuit can be imported, see through one of switching of field-effect transistor (MOSFET) high frequency and transformer group coil and diode, electric capacity, jointly with merit because of revising, see through another group coil of transformer simultaneously, produce the energy that promotes resonant network.
5. a kind of single-stage high-power-factor feedback frequency conversion type resonant energy control circuit according to claim 1, it is characterized in that high merit calculates out the pulse bandwidth of field-effect transistor (MOSFET) conducting according to the resonance characteristics of resonant network because of the pulse bandwidth control loop, if this pulse bandwidth is fixedly the time, change the time length of field-effect transistor (MOSFET) OFF, can reach and adjust the back coupling resonant energy, it is the purpose of light modulation, lamp luminescence efficient when also possessing simultaneously the light modulation of raising, this is former comprehends the state running down that allows resonant tank be in resonance forever.
6. a kind of single-stage high-power-factor feedback frequency conversion type resonant energy control circuit according to claim 1, it is characterized in that high merit is because of the pulse bandwidth control loop, when power supply changes, the electronic circuit combined loop can be detected the signal of resistance and the voltage signal on the electric capacity, after the judgement of electronic circuit combined loop, the signal that a pulse wave width modulation is provided is to field-effect transistor (MOSFET), this signal cooperates a transformer around two groups of coils, a diode, an electric capacity, with make resonant energy in the load to control to improve simultaneously merit because of, be used for fluorescent tube, illumination does not change illumination because of the input voltage change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810219935A CN101753043A (en) | 2008-12-12 | 2008-12-12 | Single-stage high-power-factor feedback frequency conversion type resonant energy control circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810219935A CN101753043A (en) | 2008-12-12 | 2008-12-12 | Single-stage high-power-factor feedback frequency conversion type resonant energy control circuit |
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| CN101753043A true CN101753043A (en) | 2010-06-23 |
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| CN200810219935A Pending CN101753043A (en) | 2008-12-12 | 2008-12-12 | Single-stage high-power-factor feedback frequency conversion type resonant energy control circuit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976958A (en) * | 2010-11-10 | 2011-02-16 | 电子科技大学 | High-efficiency power regulating device based on power factor correction |
| CN103108457A (en) * | 2013-01-18 | 2013-05-15 | 上海君能能源科技有限公司 | High-frequency driver of light-emitting diode (LED) lamp |
| CN104582115B (en) * | 2013-10-25 | 2017-10-13 | 绿色再生能科技股份有限公司 | Light-emitting device |
-
2008
- 2008-12-12 CN CN200810219935A patent/CN101753043A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976958A (en) * | 2010-11-10 | 2011-02-16 | 电子科技大学 | High-efficiency power regulating device based on power factor correction |
| CN101976958B (en) * | 2010-11-10 | 2012-08-01 | 电子科技大学 | High-efficiency power regulating device based on power factor correction |
| CN103108457A (en) * | 2013-01-18 | 2013-05-15 | 上海君能能源科技有限公司 | High-frequency driver of light-emitting diode (LED) lamp |
| CN103108457B (en) * | 2013-01-18 | 2015-07-08 | 上海君能能源科技有限公司 | High-frequency driver of light-emitting diode (LED) lamp |
| CN104582115B (en) * | 2013-10-25 | 2017-10-13 | 绿色再生能科技股份有限公司 | Light-emitting device |
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Open date: 20100623 |