CN206686401U - A kind of wide input voltage phase-cut dimming power supply - Google Patents
A kind of wide input voltage phase-cut dimming power supply Download PDFInfo
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- CN206686401U CN206686401U CN201720314022.4U CN201720314022U CN206686401U CN 206686401 U CN206686401 U CN 206686401U CN 201720314022 U CN201720314022 U CN 201720314022U CN 206686401 U CN206686401 U CN 206686401U
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Abstract
The utility model discloses and provides a kind of wide input voltage phase-cut dimming power supply, and it connects and is operated in integrally adjusting light circuit, and the integrally adjusting light circuit includes the power network power supply being sequentially connected（1）, phase-cut dimmer（2）, dimming power source（3）, LED（4）, power network power supply（1）By phase-cut dimmer（2）Input dimming power source（3）, dimming power source（3）To LED（4）Working power, dimming power source are provided（3）Including anti-jamming circuit（31）, active power-factor correction circuit（32）, circuit for power conversion（33）, light modulator maintain current circuit（34）, wide input voltage phase-cut dimming control circuit（35）, FET（Q1）, compared with prior art, the utility model can realize the wide input voltage ranges of 90 305V, meet the most of line voltage in the whole world.And PWM control modes are used, and it can realize while control the brightness of the LED of multiple color, can compatible forward position, trailing edge dimmer.
Description
Technical field
A kind of phase-cut dimming power supply is the utility model is related to, more particularly, to a kind of wide input voltage phase-cut dimming power supply.
Background technology
Phase-cut dimming, which has user installation wiring conveniently and in Old building to lay illuminating line and be transformed into, has light modulation
The advantages that illumination scheme of function is simple and use it is more and more.However, current phase-cut dimming power input voltage scope
It is all narrow, such as it is all in 170-265V to be applicable the regional phase-cut dimming power input voltage scope such as China, Europe, Australia
Interior, the phase-cut dimming power input voltage scope suitable for the area such as North America, Japan is all in the range of 90-130V, lacks one
Kind is applied to phase-cut dimming power supply of the input voltage range in 90-305V of the most of power network in the whole world.That uses now in addition cuts
Phase dimming power source some also realizes phase-cut dimming by the way of power adjusting, and the phase-cut dimming power supply of this mode has load
Power limit, various photochromic LEDs can not be adjusted simultaneously, the problems such as input voltage is narrow, the side that also some is controlled using PWM
Formula, although various photochromic LEDs can be adjusted simultaneously, because it gathers the voltage magnitude of input voltage to produce control
Signal, this mode can only be equally used in the phase-cut dimming power supply of narrow input voltage.
In summary other phase-cut dimming power supplys of the prior art exist bearing power limitation, can not adjust simultaneously it is a variety of
Photochromic LED, the defects of input voltage range is narrow.
Utility model content
Problem to be solved in the utility model is overcome the deficiencies in the prior art, there is provided a kind of that bearing power is not limited
System, a variety of photochromic LEDs, efficiency high and phase-cut dimmer compatibility can be adjusted simultaneously by force and can realize the wide inputs of 90-305V
The phase-cut dimming power supply of the advantages that voltage range.
The technical solution of the utility model is：A kind of wide input voltage phase-cut dimming power supply, it connects and is operated in entirety
In light adjusting circuit, the integrally adjusting light circuit includes power network power supply, phase-cut dimmer, dimming power source, the LED being sequentially connected
Lamp, the power network power supply input the dimming power source by the phase-cut dimmer, and the dimming power source is to the LED
There is provided working power, the dimming power source include anti-jamming circuit, active power-factor correction circuit, circuit for power conversion,
Light modulator maintains current circuit, wide input voltage phase-cut dimming control circuit, FET, the input of the anti-jamming circuit
Connect the output end of the phase-cut dimmer, the output end connection active PFC electricity of the anti-jamming circuit
Road, light modulator maintain current circuit, the input of wide input voltage phase-cut dimming control circuit, the active power factor school
The output end of positive circuit connects the input of the circuit for power conversion, and the output end of the circuit for power conversion is via the field
The control of effect pipe provides working power to the LED, and the control pole of the FET connects the wide input voltage and cut
The output end of phase adjusting control circuit.
The wide input voltage phase-cut dimming control circuit includes diode I, diode II, resistance I, resistance II, compared
Device, a reference source, pwm signal change-over circuit, photoelectrical coupler, pwm signal adjustment circuit, the diode I, diode II are just
Pole connects the output both ends of the anti-jamming circuit respectively, and the diode I, the negative pole of diode II are connected and connected described
One end of resistance I, the other end of the resistance I connect one end of the resistance II, the anode of the comparator, the comparator
Negative terminal connect one end of a reference source, the other end of a reference source connects the other end of the resistance II, circuit altogether
End, the power end connection VCC of the comparator, the output end of the comparator connect the input of the pwm signal change-over circuit
End, the luminous pipe end of the output end connection photoelectrical coupler of the pwm signal change-over circuit, the three of the photoelectrical coupler
Pole pipe switch terminals connect the input of the pwm signal adjustment circuit, described in the output end connection of the pwm signal adjustment circuit
The control pole of FET.
The wide input voltage phase-cut dimming control circuit can also include diode I, diode II, resistance I, resistance
IIth, resistance III, comparator, a reference source, photoelectrical coupler, pwm signal change-over circuit, pwm signal adjustment circuit, the diode
Ith, the positive pole of diode II connects the output both ends of the anti-jamming circuit, the diode I, the negative pole phase of diode II respectively
Connect and connect one end of the resistance I, the other end of the resistance I connects one end of the resistance II, the comparator
Anode, the negative terminal of the comparator connect one end of a reference source, and the other end of a reference source connects the resistance II
The other end, circuit holding altogether, the power end connection VCC of the comparator, the output end of the comparator connect the photoelectricity coupling
The anode of the luminous pipe end of clutch, the negative terminal of the luminous pipe end of the photoelectrical coupler connects one end of the resistance III, described
The other end connection circuit holding altogether of resistance III, the triode switch end of the photoelectrical coupler connect the pwm signal conversion
The input of circuit, the output end of the pwm signal change-over circuit connects the input of the pwm signal adjustment circuit, described
The output end of pwm signal adjustment circuit connects the control pole of the FET.
The beneficial effects of the utility model are：Due to the utility model, it connects and is operated in integrally adjusting light circuit, institute
The power network power supply, phase-cut dimmer, dimming power source, LED that integrally adjusting light circuit includes being sequentially connected are stated, the power network supplies
Power supply inputs the dimming power source by the phase-cut dimmer, and the dimming power source provides working power to the LED,
The dimming power source includes anti-jamming circuit, active power-factor correction circuit, circuit for power conversion, light modulator and maintains electric current
Circuit, wide input voltage phase-cut dimming control circuit, FET, the input of the anti-jamming circuit connect the cut and adjusted
The output end of light device, the output end of the anti-jamming circuit connect the active power-factor correction circuit, light modulator maintenance
The input of current circuit, wide input voltage phase-cut dimming control circuit, the output of the active power-factor correction circuit
End connects the input of the circuit for power conversion, the output end of the circuit for power conversion via the FET control
Working power is provided to the LED, the control pole of the FET connects the wide input voltage phase-cut dimming control electricity
The output end on road.The active power-factor correction circuit can play PFC, be carried for the circuit for power conversion
For the effect of stable operating voltage, and the requirement of wide input voltage range can be realized, coordinate the wide input voltage to cut
Phase adjusting control circuit, the utility model are the width that the wide input voltage phase-cut dimming power supply can be easily achieved 90-305V
Input voltage, and the wide input voltage phase-cut dimming control circuit uses the PWM way of outputs, can realize while adjust a variety of
The function of photochromic LED；The active power-factor correction circuit coordinates the circuit for power conversion also to allow the width
Input voltage phase-cut dimming power supply is easily achieved high efficiency, High Power Factor.
Brief description of the drawings
Fig. 1 is system architecture block diagram of the present utility model；
Fig. 2 is the circuit diagram of the utility model embodiment 1；
Fig. 3 is the circuit diagram of the utility model embodiment 2.
Embodiment
As shown in Figure 1 to Figure 3, a kind of wide input voltage phase-cut dimming power supply, it connects and is operated in integrally adjusting light circuit
In, the integrally adjusting light circuit include be sequentially connected power network power supply 1, phase-cut dimmer 2, dimming power source 3, LED 4,
The power network power supply 1 inputs the dimming power source 3 by the phase-cut dimmer 2, and the light adjusting circuit 3 is to the LED
Lamp 4 provides working power, and the dimming power source 3 includes anti-jamming circuit 31, active power-factor correction circuit 32, power and turned
Change circuit 33, light modulator maintains current circuit 34, wide input voltage phase-cut dimming control circuit 35, FET Q1, described anti-
The input of circuit 31 is disturbed to connect the output end of the phase-cut dimmer 2, the output end connection institute of the anti-jamming circuit 31
State active power-factor correction circuit 32, light modulator maintains current circuit 34, wide input voltage phase-cut dimming control circuit 35
Input, the output end of the active power-factor correction circuit 32 connects the input of the circuit for power conversion 33,
The output end of the circuit for power conversion 33 provides working power, institute via the control of the FET Q1 to the LED 4
The control pole for stating FET Q1 connects the output end of the wide input voltage phase-cut dimming control circuit 35.
As shown in Fig. 2 wide input voltage phase-cut dimming control circuit described in the present embodiment 1 35 includes the D1 of diode I, two
The D2 of pole pipe II, the R1 of resistance I, the R2 of resistance II, comparator U1, a reference source Ref, pwm signal change-over circuit 351, photoelectrical coupler U2,
Pwm signal adjustment circuit 352, the D1 of diode I, the D2 of diode II positive pole connect the defeated of the anti-jamming circuit 31 respectively
Go out both ends, the D1 of diode I, the D2 of diode II negative pole are connected and connect one end of the R1 of resistance I, the resistance I
The R1 other end connects one end of the R2 of resistance II, the anode of the comparator U1, the negative terminal connection institute of the comparator U1
A reference source Ref one end is stated, the other end of a reference source Ref connects the other end of the R2 of resistance II, circuit holding altogether, institute
The output end for stating comparator U1 power end connection VCC, the comparator U1 connects the defeated of the pwm signal change-over circuit 351
Enter end, the output end of the pwm signal change-over circuit 351 connects the luminous pipe end of the photoelectrical coupler U2, the photoelectricity coupling
Clutch U2 triode switch end connects the input of the pwm signal adjustment circuit 352, the pwm signal adjustment circuit 352
Output end connect the control pole of the FET Q1.
As shown in figure 3, wide input voltage phase-cut dimming control circuit described in the present embodiment 2 35 can also include diode
I D1, the D2 of diode II, the R1 of resistance I, the R2 of resistance II, the R3 of resistance III, comparator U1, a reference source Ref, photoelectrical coupler U2, PWM
Signaling conversion circuit 351, pwm signal adjustment circuit 352, the D1 of diode I, the D2 of diode II positive pole connect described respectively
The output both ends of anti-jamming circuit 31, the D1 of diode I, the D2 of diode II negative pole are connected and connect the R1 of resistance I
One end, the other end of the R1 of resistance I connects one end of the R2 of resistance II, the anode of the comparator U1, the comparison
Device U1 negative terminal connects one end of a reference source Ref, and the other end of a reference source Ref connects the another of the R2 of resistance II
End, circuit holding altogether, power end the connection VCC, the comparator U1 of the comparator U1 output end connect the photoelectricity coupling
The anode of clutch U2 luminous pipe end, the negative terminal of the luminous pipe end of the photoelectrical coupler U2 connect the one of the R3 of resistance III
Hold, the other end connection circuit holding altogether of the R3 of resistance III, described in the triode switch end connection of the photoelectrical coupler U2
Pwm signal change-over circuit（351）Input, the pwm signal change-over circuit（351）Output end connect the pwm signal
The input of adjustment circuit 352, the output end of the pwm signal adjustment circuit 352 connect the control pole of the FET Q1.
In the present embodiment, power network power supply 1 is input to the wide input voltage cut after the copped wave of phase-cut dimmer 2
The anti-jamming circuit 31 of dimming power source 3, the anti-jamming circuit 31 play antisurge, reduce the effect such as electromagnetic interference, when
When the anti-jamming circuit 31 adds the leadage circuit being made up of electric capacity, resistant series, moreover it is possible to play and improve the wide input electricity
The compatibility of crush-cutting phase dimming power source 3 and phase-cut dimmer 2, described in the AC power 1 after the copped wave of phase-cut dimmer 2 is passed through
The active power-factor correction circuit 32 is separately input to after anti-jamming circuit 31, the light modulator maintains current circuit 34
With the wide input voltage phase-cut dimming control circuit 35, the active power-factor correction circuit 32 is carried out to power factor
Correction, circuit total harmonic distortion is reduced, and stable high voltage direct current is provided for the circuit for power conversion 33, the power turns
The direct current that circuit 33 exports a constant pressure or constant current by energy conversion is changed, and is matched by FET Q1 supplies
LED 4, while also for the active power-factor correction circuit 32, the wide input voltage phase-cut dimming control circuit
35 grade circuits provide operating voltage.Because the active power-factor correction circuit 32 is that the circuit for power conversion 33 provides
The higher operating voltage of one voltage, when the circuit for power conversion 33 is under Same Efficieney, relative operating current reduces,
When the circuit for power conversion 33 uses the topological circuit such as quasi-resonance flyback, active clamped normal shock, LLC, LCC, full-bridge again
When, it is easy to realize efficient power conversion.The light modulator maintains current circuit 34 to be connected to the wide input voltage
The phase-cut dimmer 2 of phase-cut dimming power supply 3, which provides, maintains electric current, ensures the steady operation of phase-cut dimmer 2, and can improve the width
The compatibility of input voltage phase-cut dimming power supply 3 and leading edge dimmer and trailing edge dimmer.The wide input voltage phase-cut dimming
Control circuit 35 will first be converted into pwm signal with the alternating current same frequency after rectification after the AC rectification after copped wave,
The pulsewidth of pwm signal after by copped wave the phase width of alternating current influenceed, the alternating current phases after copped wave are narrower, the arteries and veins of pwm signal
Wide just smaller, the alternating current phases after copped wave are wider, and the pulsewidth of pwm signal is wider, therefore adjust phase-cut dimmer 2 and change exchange
Electric copped wave width, the pulsewidth of this pwm signal is just influenceed, while the pulsewidth of this pwm signal and the voltage amplitude of alternating current do not have
There is direct relation, therefore the wide input voltage phase-cut dimming control circuit 35 can be made to meet wide input voltage range.It is described
This pwm signal is converted into pwm signal of the frequency more than or equal to 200Hz by wide input voltage phase-cut dimming control circuit 35, is turned
The dutycycle of pwm signal of the controlled duty cycle of pwm signal after changing before conversion, the wide input voltage phase-cut dimming control
Pwm signal of the frequency after conversion more than or equal to 200Hz is input to the grid of the FET Q1 by circuit 35, goes described in control
FET Q1 switch periods, the output quantity for controlling the wide input voltage phase-cut dimming power supply 3 is realized, and realize control
The brightness of LED 4.
Embodiment 2 with embodiment 1 the comparator U1 produce pwm signal mode be as.Embodiment 2 and reality
Example 1 is applied compared to differing only in：Embodiment 1 is by pwm signal conversion electricity by pwm signal caused by the comparator U1
After pwm signal of the frequency more than or equal to 200Hz is changed out on road 351, frequency is more than or equal to by the photoelectrical coupler U2
200Hz pwm signal is delivered to the pwm signal adjustment circuit of the primary side of wide input voltage phase-cut dimming power supply 3
352, and embodiment 2 is that pwm signal caused by the comparator U1 is first passed through into the photoelectrical coupler U2 to be delivered to the width
The pwm signal change-over circuit 351 of the primary side of input voltage phase-cut dimming power supply 3, the pwm signal change-over circuit 351 is again
Change out frequency and be more than or equal to 200Hz pwm signal, and be directly inputted to the pwm signal adjustment circuit 352.Briefly
It is exactly that pwm signal change-over circuit 351 described in embodiment 1 is placed on the primary side of wide input voltage phase-cut dimming power supply 3,
Before the photoelectrical coupler U2, the pwm signal change-over circuit 351 of the photoelectrical coupler U2 transmission is changed out
Pwm signal more than or equal to 200Hz.And pwm signal change-over circuit 351 described in embodiment 2 is placed on the wide input voltage and cut
The primary side of phase dimming power source 3, behind the photoelectrical coupler U2, the photoelectrical coupler U2 transmission is the comparator
Pwm signal caused by U1.
Compared with prior art, the utility model can realize the wide input voltage ranges of 90-305V, meet global most of
Line voltage.And use PWM control modes, can realize the brightness for the LED for controlling multiple color simultaneously, the compatible forward position of energy, after
Along light modulator.
Embodiment in above-mentioned is only the preferable embodiment of the utility model, and it does not limit to protection model of the present utility model
Enclose, it is any made an amendment in thinking of the present utility model, content, improve or equivalent substitution both fall within right of the present utility model will
Ask in protection domain.
Claims (3)
1. a kind of wide input voltage phase-cut dimming power supply, it connects and is operated in integrally adjusting light circuit, the integrally adjusting light electricity
Road includes the power network power supply being sequentially connected（1）, phase-cut dimmer（2）, dimming power source（3）, LED（4）, the power network confession
Power supply（1）By the phase-cut dimmer（2）Input the dimming power source（3）, the dimming power source（3）To the LED
（4）Working power is provided, it is characterised in that：The dimming power source（3）Including anti-jamming circuit（31）, active power factor school
Positive circuit（32）, circuit for power conversion（33）, light modulator maintain current circuit（34）, wide input voltage phase-cut dimming control circuit
（35）, FET（Q1）, the anti-jamming circuit（31）Input connect the phase-cut dimmer（2）Output end, institute
State anti-jamming circuit（31）Output end connect the active power-factor correction circuit（32）, light modulator maintain current circuit
（34）, wide input voltage phase-cut dimming control circuit（35）Input, the active power-factor correction circuit（32）'s
Output end connects the circuit for power conversion（33）Input, the circuit for power conversion（33）Output end via the field
Effect pipe（Q1）Control to the LED（4）Working power, the FET are provided（Q1）Control pole connect the width
Input voltage phase-cut dimming control circuit（35）Output end.
2. wide input voltage phase-cut dimming power supply according to claim 1, it is characterised in that：The wide input voltage cut
Adjusting control circuit（35）Including diode I（D1）, diode II（D2）, resistance I（R1）, resistance II（R2）, comparator（U1）、
A reference source（Ref）, pwm signal change-over circuit（351）, photoelectrical coupler（U2）, pwm signal adjustment circuit（352）, two pole
Pipe I（D1）, diode II（D2）Positive pole connect the anti-jamming circuit respectively（31）Output both ends, the diode I
（D1）, diode II（D2）Negative pole be connected and connect the resistance I（R1）One end, the resistance I（R1）The other end
Connect the resistance II（R2）One end, the comparator（U1）Anode, the comparator（U1）Negative terminal connect the base
Quasi- source（Ref）One end, a reference source（Ref）The other end connect the resistance II（R2）The other end, circuit holding altogether,
The comparator（U1）Power end connection VCC, the comparator（U1）Output end connect the pwm signal change-over circuit
（351）Input, the pwm signal change-over circuit（351）Output end connect the photoelectrical coupler（U2）Luminous tube
End, the photoelectrical coupler（U2）Triode switch end connect the pwm signal adjustment circuit（352）Input, it is described
Pwm signal adjustment circuit（352）Output end connect the FET（Q1）Control pole.
3. wide input voltage phase-cut dimming power supply according to claim 1, it is characterised in that：The wide input voltage cut
Adjusting control circuit（35）Diode I can also be included（D1）, diode II（D2）, resistance I（R1）, resistance II（R2）, resistance
Ⅲ （R3）, comparator（U1）, a reference source（Ref）, photoelectrical coupler（U2）, pwm signal change-over circuit（351）, pwm signal adjust
Whole circuit（352）, the diode I（D1）, diode II（D2）Positive pole connect the anti-jamming circuit respectively（31）It is defeated
Go out both ends, the diode I（D1）, diode II（D2）Negative pole be connected and connect the resistance I（R1）One end, it is described
Resistance I（R1）The other end connect the resistance II（R2）One end, the comparator（U1）Anode, the comparator（U1）
Negative terminal connect a reference source（Ref）One end, a reference source（Ref）The other end connect the resistance II（R2）It is another
One end, circuit holding altogether, the comparator（U1）Power end connection VCC, the comparator（U1）Output end connection described in
Photoelectrical coupler（U2）Luminous pipe end anode, the photoelectrical coupler（U2）The negative terminal of luminous pipe end connect the resistance
Ⅲ （R3）One end, the resistance III（R3）The other end connection circuit holding altogether, the photoelectrical coupler（U2）Three poles
Pipe switch terminals connect the pwm signal change-over circuit（351）Input, the pwm signal change-over circuit（351）Output end
Connect the pwm signal adjustment circuit（352）Input, the pwm signal adjustment circuit（352）Output end connection described in
FET（Q1）Control pole.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720314022.4U CN206686401U (en) | 2017-03-29 | 2017-03-29 | A kind of wide input voltage phase-cut dimming power supply |
| US15/679,172 US9942959B1 (en) | 2017-03-29 | 2017-08-17 | Phase-cut dimmable power supply with wide input voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720314022.4U CN206686401U (en) | 2017-03-29 | 2017-03-29 | A kind of wide input voltage phase-cut dimming power supply |
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| Publication Number | Publication Date |
|---|---|
| CN206686401U true CN206686401U (en) | 2017-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720314022.4U Active CN206686401U (en) | 2017-03-29 | 2017-03-29 | A kind of wide input voltage phase-cut dimming power supply |
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| CN (1) | CN206686401U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106793351A (en) * | 2017-03-29 | 2017-05-31 | 珠海市圣昌电子有限公司 | A kind of wide input voltage phase-cut dimming power supply |
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2017
- 2017-03-29 CN CN201720314022.4U patent/CN206686401U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106793351A (en) * | 2017-03-29 | 2017-05-31 | 珠海市圣昌电子有限公司 | A kind of wide input voltage phase-cut dimming power supply |
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