CN202652646U - Universal light modulator - Google Patents
Universal light modulator Download PDFInfo
- Publication number
- CN202652646U CN202652646U CN2012202916019U CN201220291601U CN202652646U CN 202652646 U CN202652646 U CN 202652646U CN 2012202916019 U CN2012202916019 U CN 2012202916019U CN 201220291601 U CN201220291601 U CN 201220291601U CN 202652646 U CN202652646 U CN 202652646U
- Authority
- CN
- China
- Prior art keywords
- bidirectional
- resistance
- triode thyristor
- triode
- full bridge
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model provides a universal light modulator and belongs to the field of electronic light modulators of fluorescent lamps. The universal light modulator includes a bidirectional triode thyristor Q4, a bidirectional trigger diode Q5 and an energy-storage timing capacitor C3. One end of the bidirectional triode thyristor Q4 is connected with a power line while the other end of the bidirectional triode thyristor Q4 is connected with an adjustable photoelectric ballast in series. The universal light modulator is characterized in that a control terminal of the bidirectional triode thyristor Q4 is connected with an adjustable current charging circuit through the arrangement of the bidirectional trigger diode Q5. A common terminal of the bidirectional trigger diode Q5 and the adjustable current charging circuit is provided with the energy-storage timing capacitor C3. By adopting a bidirectional quasi constant current circuit as the adjustable current charging circuit for realizing the control of bidirectional controllable output phase of the charging of a fixed capacitor, the influence of the phase of output voltage by power voltage is only in a range from 0.39 percent to 3.9 percents and the light sensation is not easy to perceive. The universal light modulator provided by the utility model is high in timing precision, wide in application range of power voltage and low in self loss. The universal light modulator provided by the utility model can suit for a plurality of power source systems and a plurality of lighting appliance and has a good economic effect and a good social effect.
Description
Technical field
The utility model provides a kind of general dimmer, is used for regulating the fluorescent lamp that electric ballast drives, and the LED lamp of LED power drives and the luminosity of other relevant electric lighting belong to the electronic light modulator field.
Background technology
Existing technology, two wires bidirectional triode thyristor light regulating technology is multiplex in the light modulation of incandescent lamp bulb, because the requirement of energy-conserving and environment-protective, incandescent lamp bulb withdraws from just rapidly electric lighting field.Released since Philips since the bidirectional triode thyristor dimmer and corresponding dimmable electronic ballast of the Advance menk10 series that is used for fluorescent lamp, the bidirectional triode thyristor dimmer is being improved aspect light modulation precision and the range of application.
The most frequently used bidirectional triode thyristor light regulating technology as shown in Figure 1, main electronic switch bidirectional triode thyristor Q1 is connected in series to and forms major loop in the power supply circuits by filter inductance L1, protective tube F1, mechanical switch S1, electric light source LAMP.Capacitor C 1 is with after resistance R 1 is connected, and Q1 is in parallel with bidirectional triode thyristor, and the control utmost point of bidirectional triode thyristor Q1 is received in the RC timing circuit that is made of adjustable resistance RP1 and energy storage timing capacitor C2 by bidirectional trigger diode Q2.The time constant of this RC timer has determined the angle of flow of bidirectional triode thyristor Q1.The value that changes adjustable resistance RP1 has just changed the angle of flow of bidirectional triode thyristor Q1.Because flow through the approximate voltage that is proportional to power supply of the electric current of adjustable resistance RP1, so when power source change, the angle of flow of bidirectional triode thyristor Q1 also changes, and voltage is higher thereupon, the angle of flow is just larger, electric light source is just brighter, and the requirement of this and brightness stability is disagreed.
Circuit is that the companies such as Philips address this problem the improvement circuit that proposes as shown in Figure 2.Change in the RC timing circuit that is consisted of by energy storage timing capacitor C2 and adjustable resistance RP1, added a high-tension bidirectional trigger diode Q3.This bidirectional trigger diode Q3 can equivalence becomes the voltage-stabiliser tube of two differential concatenations here, be used for insulating power supply variation in voltage and RC timing circuit, so that adjustable resistance RP1 is when giving energy storage timing capacitor C2 charging, the charging interval is not subjected to the impact of supply voltage substantially.Thereby the angle of flow that makes bidirectional triode thyristor Q1 is not subjected to the impact of supply voltage substantially yet.But because dimmer is operated in sinusoidal ac, at the phase angle of sine wave hour, the transient voltage on the bidirectional triode thyristor Q1 is also less.Want to allow bidirectional trigger diode Q3 start working earlier, to be conducive to the stable of the bidirectional triode thyristor Q1 angle of flow, the current-limiting resistance that just requires to be connected in this trigger tube and bidirectional triode thyristor Q1 second utmost point is the smaller the better.This resistance of the product of Philips is selected in about 10K Ω.But square being directly proportional of the power consumption of this resistance and supply voltage.Its weak point is that when input voltage changed, the ohmically curent change that is connected between trigger tube and bidirectional triode thyristor Q1 the second main terminal was very large; When changing very high and this resistance of voltage over to when little, doubly the increase with the increase of supply voltage square of this ohmically power consumption, the loss meeting is very large, so although this circuit can allow the voltage of dimmer angle of flow of stable output in certain scope, but can not be operated under the transformation system, such as when supply voltage changes to 277V from 120V.
The utility model content
According to above the deficiencies in the prior art, the technical problems to be solved in the utility model is: provide a kind of timing accuracy high, use the supply voltage scope wide, the general dimmer that own loss is little.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of general dimmer, comprise bidirectional triode thyristor Q4, bidirectional trigger diode Q5 and energy storage timing capacitor C3, the two ends of bidirectional triode thyristor Q4 arrange resistance R 4 and the capacitor C 5 of series connection, bidirectional triode thyristor Q4 one end is by filter inductance L2 connecting power line, the other end is connected with dimmable electronic ballast, it is characterized in that: bidirectional triode thyristor Q4 control end arranges by bidirectional trigger diode Q5 and connects the adjustable current charging circuit, and the common port of bidirectional trigger diode Q5 and adjustable current charging circuit arranges energy storage timing capacitor C3.
By the control of adjustable current charging circuit to the two-way controlled output phase of energy storage timing capacitor C3 charging realization, realize that timing accuracy is high, the supply voltage that the scope that is applicable to is wide.
Wherein preferred version is:
Described adjustable current charging circuit comprises a rectifying full bridge BR1, MOSFET triode Q6, voltage stabilizing didoe ZD1 and adjustable resistance RP2, the ac input end of rectifying full bridge BR1 is connected on the second main pole of bidirectional triode thyristor Q4, and another ac input end is connected on the energy storage timing capacitor C3, resistance R 2 and the voltage stabilizing didoe ZD1 of series connection are set between the positive pole of rectifying full bridge BR1 and the negative pole, resistance R 2 is connected common port the grid that connects MOSFET triode Q6 is set with voltage stabilizing didoe ZD1, the source electrode of MOSFET triode Q6 arranges resistance R 3 and the adjustable resistance RP2 of series connection, and the drain electrode of MOSFET triode Q6 connects the positive pole of rectifying full bridge BR1.
When voltage stabilizing didoe was worked, its voltage stabilizing value was substantially constant, if when selecting voltage to be 12V:
V
GS=3V,I
Smax=5.0mA,I
Smin=0.5mA,
The electric current that flows through voltage-stabiliser tube is
R2 gets 10M,
Work as V
InDuring=35V
Work as V
InDuring=424V
Described adjustable current charging circuit can also be to comprise a rectifying full bridge BR1, dual-polar triode Q7, voltage stabilizing didoe ZD1 and adjustable resistance RP2, the ac input end of rectifying full bridge BR1 is connected on the second main pole of bidirectional triode thyristor Q4, and another ac input end is connected on the energy storage timing capacitor C3, resistance R 2 and the voltage stabilizing didoe ZD1 of series connection are set between the positive pole of rectifying full bridge BR1 and the negative pole, resistance R 2 is connected common port the base stage that connects dual-polar triode Q7 is set with voltage stabilizing didoe ZD1, the emitter of dual-polar triode Q7 arranges resistance R 3 and the adjustable resistance RP2 of series connection, and the collector electrode of dual-polar triode Q7 connects the positive pole of rectifying full bridge BR1.
The beneficial effect that general dimmer of the present utility model has is: by in the bidirectional trigger diode setting by rectifier bridge, the two-way accurate constant-current circuit of the compositions such as MOSFET triode and voltage stabilizing didoe charges to fixed capacity as the adjustable charging circuit of electric current and carries out the control of two-way controlled output phase, the MOSFET triode also can replace with dual-polar triode, owing to give fixing energy storage timing capacitor charging, and do the timing of output phase to be charged to fixed voltage, so it is 0.39% to 3.9% only also that the phase place of output voltage is subjected to the impact of input supply voltage, light sensation is subtle.The utility model timing accuracy is high, use supply voltage scope is wide, own loss is little, can adapt to multiple power sources system and multiple electric lighting, has good economic benefit and social benefit.
Description of drawings
Fig. 1 is the circuit theory diagrams of Basic Design in the background technology;
Fig. 2 is existing improved circuit theory diagrams in the background technology;
Fig. 3 is the circuit theory diagrams of embodiment 1 of the present utility model;
Fig. 4 is the circuit theory diagrams of the adjustable current charging circuit of embodiment 1 of the present utility model;
Fig. 5 is the circuit theory diagrams of the adjustable current charging circuit of embodiment 2 of the present utility model;
Among the figure: S1, mechanical switch Q1, Q4, bidirectional triode thyristor L1, L2, filter inductance F1, protective tube LAMP, electric light source Q2, Q3, Q5, bidirectional trigger diode Q6, MOSFET triode Q7, dual-polar triode R1, R2, R3, R4, resistance R P1, RP2, adjustable resistance C1, C5, capacitor C 2, C3, energy storage timing capacitor BR1, rectifying full bridge ZD1, voltage stabilizing didoe.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further:
Embodiment 1:
As shown in Figure 3, comprise bidirectional triode thyristor Q4, bidirectional trigger diode Q5 and energy storage timing capacitor C3, the two ends of bidirectional triode thyristor Q4 arrange resistance R 4 and the capacitor C 5 of series connection, bidirectional triode thyristor Q4 one end is by filter inductance L2 connecting power line, the other end is connected with dimmable electronic ballast, bidirectional triode thyristor Q4 control end arranges by bidirectional trigger diode Q5 and connects the adjustable current charging circuit, and the common port of bidirectional trigger diode Q5 and adjustable current charging circuit arranges energy storage timing capacitor C3.
As shown in Figure 4, the adjustable current charging circuit comprises a rectifying full bridge BR1, MOSFET triode Q6, voltage stabilizing didoe ZD1 and adjustable resistance RP2.The ac input end of rectifying full bridge BR1 is connected on the second main pole of bidirectional triode thyristor Q4, and another ac input end is connected on the energy storage timing capacitor C3, resistance R 2 and the voltage stabilizing didoe ZD1 of series connection are set between the positive pole of rectifying full bridge BR1 and the negative pole, resistance R 2 is connected common port the grid that connects MOSFET triode Q6 is set with voltage stabilizing didoe ZD1, the source electrode of MOSFET triode Q6 arranges resistance R 3 and the adjustable resistance RP2 of series connection, and the drain electrode of MOSFET triode Q6 connects the positive pole of rectifying full bridge BR1.
Operation principle and use procedure:
The adjustable current charging circuit charges to the energy storage timing capacitor and carries out the control of two-way controlled output phase, realizes that timing accuracy is high, the supply voltage that the scope that is applicable to is wide.
Drive because MOSFET triode Q6 is voltage, grid current is almost nil.When the value of selected voltage stabilizing didoe ZD1 during greater than 12V, only need to can allow voltage stabilizing didoe ZD1 reach the avalanche breakdown state less than the electric current of 1uA, when the instantaneous voltage on bidirectional triode thyristor Q4 two main poles surpassed 12V, MOSFET triode Q6 began normal operation.
Experimental results show that:
Can calculate when input the highlyest during than low-voltage 35V up to 424V voltage, the maximum of output current only is 41.06-2.16=38.9uA with minimum difference, with I
D1.0-10.mA, only account for 0.39%-3.9%.
Total current I=I
W+ I
D
The voltage stabilizing didoe electric current I
W=(V
In-2V
Doide-V
w)/R
2
=(35-2*0.7V-12V)/10M
=2.16uA;
If V
GS=3VI
Max=5mA,
Otherwise, work as V
GS=3V R
2=1.8K, V
WDuring=12V,
This moment is charging current=I always
W+ I
D=5.00216mA.
Same parameter is worked as V
InDuring=500V, I
W=(V
In-2V
Doide-V
w)/R
2
=(500-1.4-12)/10M
=48.66uA
This moment I
Max=5.000mA+48.66uA=5.04866mA;
Work as I
MinWhen being designed to 0.5mA,
Work as V
InDuring=35V, I
W=2.16uA, I
D=0.5mA, I=0.50216mA;
Work as V
InDuring=500V, I
W=48.66uA, I
D=0.5mA, I=0.54866mA.
Embodiment 2:
Another embodiment of the present utility model in the present embodiment, is used for providing the dual-polar triode Q7 replacement of the MOSFET triode Q6 of adjustable current with a high-amplification-factor as shown in Figure 5.
The ac input end of rectifying full bridge BR1 is connected on the second main pole of bidirectional triode thyristor Q4, and another ac input end is connected on the energy storage timing capacitor C3, resistance R 2 and the voltage stabilizing didoe ZD1 of series connection are set between the positive pole of rectifying full bridge BR1 and the negative pole, resistance R 2 is connected common port the base stage that connects dual-polar triode Q7 is set with voltage stabilizing didoe ZD1, the emitter of dual-polar triode Q7 arranges resistance R 3 and the adjustable resistance RP2 of series connection, and the collector electrode of dual-polar triode Q7 connects the positive pole of rectifying full bridge BR1.
Claims (3)
1. general dimmer, comprise bidirectional triode thyristor Q4, bidirectional trigger diode Q5 and energy storage timing capacitor C3, the two ends of bidirectional triode thyristor Q4 arrange resistance R 4 and the capacitor C 5 of series connection, bidirectional triode thyristor Q4 one end is by filter inductance L2 connecting power line, the other end is connected with dimmable electronic ballast, it is characterized in that: bidirectional triode thyristor Q4 control end arranges by bidirectional trigger diode Q5 and connects the adjustable current charging circuit, and the common port of bidirectional trigger diode Q5 and adjustable current charging circuit arranges energy storage timing capacitor C3.
2. general dimmer according to claim 1, it is characterized in that: described adjustable current charging circuit comprises a rectifying full bridge BR1, MOSFET triode Q6, voltage stabilizing didoe ZD1 and adjustable resistance RP2, the ac input end of rectifying full bridge BR1 is connected on the second main pole of bidirectional triode thyristor Q4, and another ac input end is connected on the energy storage timing capacitor C3, resistance R 2 and the voltage stabilizing didoe ZD1 of series connection are set between the positive pole of rectifying full bridge BR1 and the negative pole, resistance R 2 is connected common port the grid that connects MOSFET triode Q6 is set with voltage stabilizing didoe ZD1, the source electrode of MOSFET triode Q6 arranges resistance R 3 and the adjustable resistance RP2 of series connection, and the drain electrode of MOSFET triode Q6 connects the positive pole of rectifying full bridge BR1.
3. general dimmer according to claim 1, it is characterized in that: described adjustable current charging circuit comprises a rectifying full bridge BR1, dual-polar triode Q7, voltage stabilizing didoe ZD1 and adjustable resistance RP2, the ac input end of rectifying full bridge BR1 is connected on the second main pole of bidirectional triode thyristor Q4, and another ac input end is connected on the energy storage timing capacitor C3, resistance R 2 and the voltage stabilizing didoe ZD1 of series connection are set between the positive pole of rectifying full bridge BR1 and the negative pole, resistance R 2 is connected common port the base stage that connects dual-polar triode Q7 is set with voltage stabilizing didoe ZD1, the emitter of dual-polar triode Q7 arranges resistance R 3 and the adjustable resistance RP2 of series connection, and the collector electrode of dual-polar triode Q7 connects the positive pole of rectifying full bridge BR1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2012202916019U CN202652646U (en) | 2012-06-19 | 2012-06-19 | Universal light modulator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2012202916019U CN202652646U (en) | 2012-06-19 | 2012-06-19 | Universal light modulator |
Publications (1)
Publication Number | Publication Date |
---|---|
CN202652646U true CN202652646U (en) | 2013-01-02 |
Family
ID=47421662
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2012202916019U Expired - Fee Related CN202652646U (en) | 2012-06-19 | 2012-06-19 | Universal light modulator |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN202652646U (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105101508A (en) * | 2014-05-05 | 2015-11-25 | 宁波高新区赛尔富电子有限公司 | LED lamp power supply control circuit |
CN105375831A (en) * | 2014-08-08 | 2016-03-02 | 德昌电机(深圳)有限公司 | Driving circuit of permanent-magnet motor |
WO2019187431A1 (en) * | 2018-03-30 | 2019-10-03 | 株式会社日立ハイテクノロジーズ | High-voltage amplifier, high-voltage power supply, and mass spectrometer |
-
2012
- 2012-06-19 CN CN2012202916019U patent/CN202652646U/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105101508A (en) * | 2014-05-05 | 2015-11-25 | 宁波高新区赛尔富电子有限公司 | LED lamp power supply control circuit |
CN105375831A (en) * | 2014-08-08 | 2016-03-02 | 德昌电机(深圳)有限公司 | Driving circuit of permanent-magnet motor |
WO2019187431A1 (en) * | 2018-03-30 | 2019-10-03 | 株式会社日立ハイテクノロジーズ | High-voltage amplifier, high-voltage power supply, and mass spectrometer |
JPWO2019187431A1 (en) * | 2018-03-30 | 2021-01-07 | 株式会社日立ハイテク | High voltage amplifier, high voltage power supply and mass spectrometer |
JP7003227B2 (en) | 2018-03-30 | 2022-01-20 | 株式会社日立ハイテク | High voltage amplifier, high voltage power supply and mass spectrometer |
US11349476B2 (en) | 2018-03-30 | 2022-05-31 | Hitachi High-Tech Corporation | High-voltage amplifier, high-voltage power supply, and mass spectrometer |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101657057B (en) | LED power circuit | |
CN202721866U (en) | New type driving circuit which is compatible with LED lamp tube | |
CN201663735U (en) | LED power supply | |
CN202652646U (en) | Universal light modulator | |
CN203851327U (en) | An LED silicon controlled rectifier light adjusting power source | |
CN104010405B (en) | A kind of LED light adjusting circuit | |
CN204518177U (en) | A kind of LED drive power circuit | |
CN201528447U (en) | LED driving power supply circuit | |
CN202617436U (en) | A two-wire dimming circuit using back-porch phase control | |
CN204350368U (en) | A kind of self-adaptation type LED drive circuit | |
CN102958240A (en) | light source device and dimming control circuit thereof | |
CN205454178U (en) | LED light modulation control circuit and LED lighting system | |
CN202385369U (en) | Light-operated desk lamp | |
CN204598401U (en) | A kind of LED touch dimmer power supply | |
CN103052222A (en) | 220V light-dimmable constant-current drive high-voltage LED (Light Emitting Diode) circuit | |
CN202679738U (en) | Energy-saving passive electronic time-delay switch | |
CN201509348U (en) | LED power circuit | |
CN102595713B (en) | Frequency-doubling light regulating controller | |
CN208675584U (en) | A kind of power noise control circuit | |
CN203708595U (en) | Novel LED light adjustment circuit | |
CN204707313U (en) | A kind of LED protection circuit | |
CN203884033U (en) | Offline type dimmable LED driving chip | |
CN204795721U (en) | Emergent bright lamp device of LED light source | |
CN203467004U (en) | Light-adjustable LED drive power supply | |
CN203661343U (en) | LED driving source applied to AC phase-cutting light modulation |
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: 20130102 Termination date: 20160619 |
|
CF01 | Termination of patent right due to non-payment of annual fee |