CN206422949U - A kind of High Power Factor phase-cut dimming power supply - Google Patents
A kind of High Power Factor phase-cut dimming power supply Download PDFInfo
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- CN206422949U CN206422949U CN201720066180.2U CN201720066180U CN206422949U CN 206422949 U CN206422949 U CN 206422949U CN 201720066180 U CN201720066180 U CN 201720066180U CN 206422949 U CN206422949 U CN 206422949U
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Abstract
The utility model discloses and provides a kind of High Power Factor phase-cut dimming power supply, and it includes AC power（1）, phase-cut dimmer（2）, High Power Factor phase-cut dimming power supply（3）, LED or LED lamp（4）, the High Power Factor phase-cut dimming power supply（3）Include the anti-jamming circuit of mutually correspondence adaptation connection（301）, active power-factor correction circuit（302）, circuit for power conversion（303）, light modulator maintain current circuit（304）, signaling conversion circuit（305）, photoelectrical coupler（306）, pwm signal amplifying circuit（307）And FET（308）, the utility model is that a kind of power factor is high, bearing power is not limited, efficiency high, power output are up to several hectowatts（Or even Shang kilowatt）, harmonic content it is low, with High Power Factor phase-cut dimming power supply the advantages of phase-cut dimmer or controllable silicon dimmer compatibility are strong, ripple is small.It can be widely applied to High Power Factor phase-cut dimming field of power supplies.
Description
Technical field
The utility model is related to a kind of phase-cut dimming power supply, more particularly, to a kind of High Power Factor phase-cut dimming power supply.
Background technology
Phase-cut dimming mode has user installation wiring convenient and is transformed into the illuminating line laid in Old building
The illumination scheme with dimming function is simple and uses more and more.However, current phase-cut dimming power supply in order to
The dimming effect met and raising and the compatibility of light modulator, can typically sacrifice power factor or efficiency.Use now
Scheme be usually using monopole PFC inverse-excitation type switch power-supplies pass through adjust limit power mode realize light modulation, although can realize
High power factor, but its is less efficient, general only 80% conversion efficiency, and also also loading range is limited, and works as load
Dimming effect will be deteriorated when power is less than source nominal power output 70%, can go out when connecing the photochromic LED of a variety of differences at the same time
Now dim asynchronous, and this topological structure determines and be not suitable for the dimming power source for being more than 100W, particularly phase-cut dimming electricity
Source；Also some schemes could be used without the inverse-excitation type or positive activation type Switching Power Supply of circuit of power factor correction controlled plus PWM it is defeated
Go out mode and realize light modulation, although the relative phase-cut dimming power supply using monopole PFC inverse-excitation type switch power-supplies of this mode efficiency will
It is higher, load also without limitation, but it because not having circuit of power factor correction, power factor is all than relatively low, and one
As between 0.5-0.8, harmonic content is very high, up to more than 100%, to power network interference than larger, and input peak point current ratio
Higher, rated power or rated current to light modulator require high；There is part cutting by the way of electronic transformer in addition
Phase dimming power source, it has the disadvantage output without after filtering, and ripple is very big, and voltage regulation factor and load regulation all compare
It is higher, when with LED, the injury to LED lamp bead is very big, shorten the life-span of LED lamp bead, and stroboscopic is clearly.
In summary, High Power Factor phase-cut dimming power supply of the prior art exist bearing power it is restricted, while connecing
The photochromic asynchronous, efficiency of LED light modulation of a variety of differences is low, power output can not be done greatly, generally less than 100W defect；And do not have
The phase-cut dimming power supply of power factor correction has that power factor is low, harmonic content is high, it is big that power network is disturbed, to light modulator
It is required that high defect.
It should be noted that：Phase-cut dimmer has a variety of species, connection and other calls, such as controllable silicon dimmer,
Leading edge dimmer, trailing edge dimmer, tangent or traditional method of indicating the pronunciation of a Chinese character light modulator etc.；LED or LED lamp can also have many forms and kind
Class, single or multiple can also connect together and use.
Utility model content
It is to be solved in the utility model ask carry be overcome the deficiencies in the prior art there is provided provide a kind of power factor it is high,
Bearing power is not limited, efficiency high, power output be up to several hectowatts（Or even Shang kilowatt）, harmonic content it is low, with cut adjust
The High Power Factor phase-cut dimming power supply for the advantages of light device or controllable silicon dimmer compatibility are strong, ripple is small.
The technical solution of the utility model is：A kind of High Power Factor phase-cut dimming power supply, it includes AC power, cut
Light modulator, High Power Factor phase-cut dimming power supply, LED or LED lamp, the AC power connect the phase-cut dimmer
Input, the output end of the phase-cut dimmer connects the input of the High Power Factor phase-cut dimming power supply, described
The output end of High Power Factor phase-cut dimming power supply connects the LED or LED lamp, the High Power Factor phase-cut dimming
Power supply include mutually correspondence adaptation connection anti-jamming circuit, active power-factor correction circuit, circuit for power conversion,
Light modulator maintains current circuit, signaling conversion circuit, photoelectrical coupler, pwm signal amplifying circuit and FET, institute
State High Power Factor phase-cut dimming power input L ends connection phase-cut dimmer output end, phase-cut dimmer input termination civil power
Live wire L ends, the High Power Factor phase-cut dimming power input N-terminal connects civil power zero line N-terminal, the High Power Factor cut
Dimming power source output end connects LED or light fixture, and the anti-jamming circuit connects the High Power Factor phase-cut dimming power supply
Input L, N-terminal, the anti-jamming circuit connects the active power-factor correction circuit, the light modulator and maintains electric current
Circuit and the signaling conversion circuit, the active power-factor correction circuit connect the circuit for power conversion, institute
State signaling conversion circuit and connect the photoelectrical coupler, the photoelectrical coupler connects the pwm signal amplifying circuit, institute
The grid that pwm signal amplifying circuit connects the FET is stated, the positive pole of the circuit for power conversion output is described
The positive pole of High Power Factor phase-cut dimming power supply output, the negative pole of the circuit for power conversion output connects the FET
Source electrode, the drain electrode of the FET is the negative pole of High Power Factor phase-cut dimming power supply output.
The active power-factor correction circuit has raising power factor, reduction current harmonic content to power network
Interference, and the effect such as operating voltage is provided for the circuit for power conversion, while coordinating the circuit for power conversion to realize big work(
Rate, small ripple.
The High Power Factor phase-cut dimming power supply output controls dimming mode using PWM, and it will not be big because of bearing power
It is small and influence dimming effect, synchronous light modulation can be also realized when connecing the photochromic LED of a variety of differences, and there is single light modulator to maintain
Current circuit, can improve the compatibility with light modulator.
The beneficial effects of the utility model are：Due to the utility model, it includes AC power, phase-cut dimmer, high power
Factor phase-cut dimming power supply, LED or LED lamp, the AC power connect the input of the phase-cut dimmer, described
The output end of phase-cut dimmer connects the input of the High Power Factor phase-cut dimming power supply, the High Power Factor cut
The output end of dimming power source connects the LED or LED lamp, and the High Power Factor phase-cut dimming power supply includes mutual
Anti-jamming circuit, active power-factor correction circuit, circuit for power conversion, the light modulator of correspondence adaptation connection maintain electricity
Current circuit, signaling conversion circuit, photoelectrical coupler, pwm signal amplifying circuit and FET, the High Power Factor
Phase-cut dimming power input L ends connect phase-cut dimmer output end, phase-cut dimmer input termination civil power live wire L ends, institute
State High Power Factor phase-cut dimming power input N-terminal connection civil power zero line N-terminal, the High Power Factor phase-cut dimming power supply
Output end connection LED or light fixture, the input L of the anti-jamming circuit connection High Power Factor phase-cut dimming power supply,
N-terminal, the anti-jamming circuit connect the active power-factor correction circuit, the light modulator maintain current circuit and
The signaling conversion circuit, the active power-factor correction circuit connects the circuit for power conversion, and the signal turns
Change circuit and connect the photoelectrical coupler, the photoelectrical coupler connects the pwm signal amplifying circuit, the PWM letters
Number amplifying circuit connects the grid of the FET, and the positive pole of the circuit for power conversion output is the high power
The positive pole of factor phase-cut dimming power supply output, the negative pole of the circuit for power conversion output connects the source of the FET
Pole, the drain electrode of the FET is the negative pole of the High Power Factor phase-cut dimming power supply output.The active work(
Rate factor correcting circuit has the interference for improving power factor, reduction current harmonic content to power network, and is power conversion
Circuit provides the effect such as operating voltage, while coordinating the circuit for power conversion to realize high-power, small ripple.The high power because
The power supply output of number phase-cut dimming controls dimming mode using PWM, and it will not influence dimming effect because of bearing power size, connect many
Synchronous light modulation can be also realized during kind different photochromic LED, and has single light modulator to maintain current circuit, can improve and dim
The compatibility of device.Described the utility model is that a kind of power factor is high, bearing power is not limited, efficiency high, power output
Up to several hectowatts（Or even Shang kilowatt）, harmonic content it is low, with phase-cut dimmer or controllable silicon dimmer compatibility are strong, ripple is small etc.
The High Power Factor phase-cut dimming power supply of advantage.
Brief description of the drawings
Fig. 1 is theory structure block diagram of the present utility model；
Fig. 2 is High Power Factor phase-cut dimming power circuit principle schematic diagram of the present utility model.
Embodiment
As shown in Figure 1 and Figure 2, the utility model it include AC power 1, phase-cut dimmer 2, High Power Factor and cut
Phase dimming power source 3, LED or LED lamp 4, the AC power 1 connect the input of the phase-cut dimmer 2,
The output end of the phase-cut dimmer 2 connects the input of the High Power Factor phase-cut dimming power supply 3, the high power
The output end of factor phase-cut dimming power supply 3 connects the LED or LED lamp 4, the High Power Factor phase-cut dimming electricity
Source 3 includes the mutually anti-jamming circuit 301 of correspondence adaptation connection, active power-factor correction circuit 302, power and turned
Change circuit 303, light modulator and maintain current circuit 304, signaling conversion circuit 305, photoelectrical coupler 306, pwm signal
Amplifying circuit 307 and FET 308, the input L of the High Power Factor phase-cut dimming power supply 3 ends connection phase-cut dimming
The output end of device 2, the input termination civil power 1 of phase-cut dimmer 2 live wire L ends, the High Power Factor phase-cut dimming power supply 3
Input the N-terminal connection zero line N-terminal of civil power 1, the output end of the High Power Factor phase-cut dimming power supply 3 connection LED or light fixture
4, the anti-jamming circuit 301 connects input L, the N-terminal of the High Power Factor phase-cut dimming power supply 3, described anti-interference
Circuit 301 connects the active power-factor correction circuit 302, the light modulator and maintains current circuit 304 and institute
Signaling conversion circuit 305 is stated, the active power-factor correction circuit 302 connects the circuit for power conversion 303,
The signaling conversion circuit 305 connects the photoelectrical coupler 306, and the photoelectrical coupler 306 connects the PWM letters
Number amplifying circuit 307, the pwm signal amplifying circuit 307 connects the grid of the FET 308, the power
The positive pole that change-over circuit 303 is exported is the positive pole that the High Power Factor phase-cut dimming power supply 3 is exported, and the power turns
The negative pole for changing the output of circuit 303 connects the source electrode of the FET 308, and the drain electrode of the FET 308 is
The negative pole that the High Power Factor phase-cut dimming power supply 3 is exported.
The active power-factor correction circuit 302 has raising power factor, reduction current harmonic content to electricity
The interference of net, and the effect such as operating voltage is provided for the circuit for power conversion 303, while coordinating the circuit for power conversion
303 realize high-power, small ripple.
The High Power Factor phase-cut dimming power supply output controls dimming mode using PWM, and it will not be big because of bearing power
It is small and influence dimming effect, synchronous light modulation can be also realized when connecing the photochromic LED of a variety of differences, and there is single light modulator to maintain
Current circuit, can improve the compatibility with light modulator.
In the present embodiment, civil power 1 is input to the High Power Factor phase-cut dimming power supply after the copped wave of phase-cut dimmer 2
3 inputs, after the anti-jamming circuit 301, are input to the active power-factor correction circuit 302, the active
Formula circuit of power factor correction typically using the APFC of boosting adjustment, is not also limited and used here certainly
The APFC of other modes, harmonic content, lifting can be reduced by APFC
Power factor, provide constant operating voltage for the circuit for power conversion 303, the circuit for power conversion 303 passes through energy
The direct current of conversion one constant pressure of output passes through the matched LED of the FET 308 supply or light fixture 4, the power
Change-over circuit 303 can be the Switching Power Supply of the various topological structures of known or following new utility model, such as flyback, normal shock,
The topological structures such as LLC, LCC, half-bridge, full-bridge or improved topological structure.Civil power 1 is after the copped wave of phase-cut dimmer 2 simultaneously
Alternating current again after the anti-jamming circuit 301, be input to the light modulator and maintain current circuit 304 and the signal to turn
Circuit 305 is changed, the light modulator maintains current circuit 304 to provide a stable maintenance electric current to phase-cut dimmer 2, it is ensured that cut
The normal work of phase light modulator 2, improves the compatibility of the High Power Factor phase-cut dimming power supply 3 and phase-cut dimmer 2, the letter
The alternating current of input is first converted into a low level DC signal by number change-over circuit 305 by electric resistance partial pressure, filtering, this
The level of individual DC signal is and the average voltage of the alternating current for being input to the High Power Factor phase-cut dimming power supply 3 or had
Effect voltage has direct relation, that is, changes the average voltage or effective voltage of alternating current and can just change the signaling conversion circuit
The voltage of 305 DC signals changed out, thus by adjust phase-cut dimmer 2 change cut away the depth of alternating current just can be with
Change the voltage for the DC signal that the signaling conversion circuit 305 is changed out；The signaling conversion circuit 305 is then by this
DC signal changes out a pwm signal by processing again, and the frequency of pwm signal is fixed, and the dutycycle of pwm signal is in other words
Pulse width determines that the frequency of pwm signal can be changed by setting signal change-over circuit by the level height of DC signal
Frequency, its frequency can typically be arranged on more than 200Hz, and the purpose is to avoid human eye from being 5 milliseconds to bright dark period of change
Light above may feel that flicker.
In the present embodiment, the signaling conversion circuit 305 can both use the pure hardware circuit of comparator, amplifier or the like
Realize, chip microcontroller can be used again, with its level by gathering DC signal of the signaling conversion circuit of single-chip microcomputer, warp
Crossing internal processes processing just can export a pwm signal corresponding with DC signal level, and the frequency of pwm signal is by monolithic
Machine internal processes are set, sometimes the signaling conversion circuit 305 can comprising a negative circuit by pwm signal it is anti-phase after again
Be input to the photoelectrical coupler 306, this depend on the phase of pwm signal that the signal adapter 305 changes out whether and
Required pwm signal opposite polarity；The pwm signal that the signaling conversion circuit 305 is produced is input to the photoelectrical coupler
306, and pwm signal is delivered to the pwm signal amplifying circuit 307, pwm signal passes through the pwm signal amplifying circuit 307
The grid of the FET 308 is input to after amplification, control and the on and off of the FET 308 are gone, due to the field
The drain electrode of effect pipe 308 is the output negative pole of the High Power Factor phase-cut dimming power supply 3, the source electrode of the FET 308
The negative pole of the circuit for power conversion 303 is connected, so pwm signal controls the on and off of the FET 308 to be control
The on and off that the High Power Factor phase-cut dimming power supply 3 is exported, so as to realize control and the High Power Factor phase-cut dimming
Power supply 3 exports the brightness of the LED being connected or light fixture 4, the frequency and dutycycle and the frequency of pwm signal of its on and off
It is consistent with dutycycle, so the dutycycle of pwm signal determines the brightness of the LED or light fixture 4.The active power factor
Correcting circuit 302 and the circuit for power conversion 303 that circuit of synchronous rectification composition is added using LLC circuits, it is easy to realize
The low high-power phase-cut dimming power supply of power factor height, efficiency high, harmonic wave；
Constituting the signaling conversion circuit 305 using elements such as operational amplifier and comparison amplifiers in the present embodiment will hand over
Stream electric signal is converted into reconvert after DC signal and, into pwm signal, is delivered to by the photoelectrical coupler 306 by triode
The pwm signal of amplification is gone control described by the pwm signal amplifying circuit 307 of composition, the pwm signal amplifying circuit 307
FET 308, the FET 308 controls the output of the circuit for power conversion 303, that is, controls the High Power Factor
The output of phase-cut dimming power supply 3, can be solved when bearing power is less than nominal load power 70% well using PWM control light modulations
The problem of following dimming effect is poor, also solves the high power phase-cut dimming power supply 3 and exports when connecing different photochromic LEDs
Synchronous light modulation can be realized, the signaling conversion circuit 305 can also be realized with single-chip microcomputer in certain embodiments, the PWM
Amplifying device or can also reach same effect using some logical devices that signal amplifier can also be thought with triode；Separately
Also comprising the leadage circuit that some are made up of capacitance resistance etc. in anti-jamming circuit 301 described in outer Fig. 2, these leadage circuits were both
Interference can be reduced can improve the compatibility of the High Power Factor phase-cut dimming power supply 3 and phase-cut dimmer 2 again, particularly improve
Compatibility with trailing edge dimmer, coordinates the light modulator to maintain current circuit 304, can make the High Power Factor cut
Dimming power source 3 is compatible with the phase-cut dimmer 2 of most of preceding cuts, rear cut good.It is a preferably typical case shown in Fig. 2
Embodiment, is intended merely to more specifically bright the utility model, and it does not limit protection domain of the present utility model.
Compared with prior art, the utility model by the active power factor correction circuit 302 improve power because
Number, harmonic content is reduced, solve that phase-cut dimming electrical source power factor in the prior art is low, power network is interfered well
The problem of；Circuit for power conversion 303 of the present utility model is with topological structures such as LLC, LCC, normal shock, half-bridge, full-bridges simultaneously
Switching power circuit, it is easy to produce that ripple is small, powerful phase-cut dimming power supply, solves phase-cut dimming in the prior art
The problem of power is small, particularly when switch power supply of the circuit for power conversion 303 with topological structures such as LLC, LCC
Conversion efficiency during road is very high, overall efficiency can be made to be easily done more than 90%；The conversion electricity of signal described in the utility model
The ac signal of input is first converted into DC signal reconvert into pwm signal by road 305, and control is gone originally with pwm signal
Light modulation is realized in the output of utility model, solve well bearing power is less than in the prior art nominal load power 70% with
The problem of lower dimming effect is poor, the dimming effect that bearing power can also have been realized when being the 1% of nominal load power, does not load
Power limit, and can also realize synchronous light modulation when output connects the photochromic LED of difference；Light modulator described in the utility model
The leadage circuit that maintaining current circuit 304 can improve in the compatibility with phase-cut dimmer 2, the anti-jamming circuit 301 also can
The compatibility with phase-cut dimmer 2 is improved, therefore the utility model is also a kind of very strong with various phase-cut dimmers compatibility
High Power Factor phase-cut dimming power supply.
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 High Power Factor phase-cut dimming power supply, it includes AC power（1）, phase-cut dimmer（2）, High Power Factor cuts
Phase dimming power source（3）, LED or LED lamp（4）, it is characterised in that：The AC power（1）Connect the phase-cut dimmer
（2）Input, the phase-cut dimmer（2）Output end connect the High Power Factor phase-cut dimming power supply（3）Input
End, the High Power Factor phase-cut dimming power supply（3）Output end connect the LED or LED lamp（4）, the high power
Factor phase-cut dimming power supply（3）Include the anti-jamming circuit of mutually correspondence adaptation connection（301）, active PFC electricity
Road（302）, circuit for power conversion（303）, light modulator maintain current circuit（304）, signaling conversion circuit（305）, photoelectric coupling
Device（306）, pwm signal amplifying circuit（307）And FET（308）, the High Power Factor phase-cut dimming power supply（3）Input
L ends connect phase-cut dimmer（2）Output end, phase-cut dimmer（2）Input termination AC power（1）Live wire L ends, the high power
Factor phase-cut dimming power supply（3）Input N-terminal connection AC power（1）Zero line N-terminal, the High Power Factor phase-cut dimming power supply
（3）Output end connects LED or light fixture（4）, the anti-jamming circuit（301）Connect the High Power Factor phase-cut dimming power supply
（3）Input L, N-terminal, the anti-jamming circuit（301）Connect the active power-factor correction circuit（302）, it is described adjust
Light device maintains current circuit（304）With the signaling conversion circuit（305）, the active power-factor correction circuit（302）
Connect the circuit for power conversion（303）, the signaling conversion circuit（305）Connect the photoelectrical coupler（306）, the light
Electric coupler（306）Connect the pwm signal amplifying circuit（307）, the pwm signal amplifying circuit（307）Connect the field
Effect pipe（308）Grid, the circuit for power conversion（303）The positive pole of output is the High Power Factor phase-cut dimming electricity
Source（3）The positive pole of output, the circuit for power conversion（303）The negative pole of output connects the FET（308）Source electrode, institute
State FET（308）Drain electrode be the High Power Factor phase-cut dimming power supply（3）The negative pole of output.
2. High Power Factor phase-cut dimming power supply according to claim 1, it is characterised in that：The active power factor
Correcting circuit（302）There is the interference for improving power factor, reduction current harmonic content to power network, and electricity is changed for the power
Road（303）The effect such as operating voltage is provided, while coordinating the circuit for power conversion（303）Realize high-power, small ripple.
3. High Power Factor phase-cut dimming power supply according to claim 1, it is characterised in that：The High Power Factor cut
Dimming power source output controls dimming mode using PWM, and it will not influence dimming effect because of bearing power size, connect a variety of differences
Also synchronous light modulation can be realized during photochromic LED, and has single light modulator to maintain current circuit, can be improved simultaneous with light modulator
Capacitive.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720066180.2U CN206422949U (en) | 2017-01-19 | 2017-01-19 | A kind of High Power Factor phase-cut dimming power supply |
| US15/680,214 US9961724B1 (en) | 2017-01-19 | 2017-08-18 | Phase-cut dimmable power supply with high power factor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720066180.2U CN206422949U (en) | 2017-01-19 | 2017-01-19 | A kind of High Power Factor phase-cut dimming power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206422949U true CN206422949U (en) | 2017-08-18 |
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ID=59571510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720066180.2U Active CN206422949U (en) | 2017-01-19 | 2017-01-19 | A kind of High Power Factor phase-cut dimming power supply |
Country Status (1)
| Country | Link |
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| CN (1) | CN206422949U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107087324A (en) * | 2017-01-19 | 2017-08-22 | 珠海市圣昌电子有限公司 | A kind of High Power Factor phase-cut dimming power supply |
| CN112804797A (en) * | 2019-10-28 | 2021-05-14 | 松下知识产权经营株式会社 | Lighting device and lighting system with same |
-
2017
- 2017-01-19 CN CN201720066180.2U patent/CN206422949U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107087324A (en) * | 2017-01-19 | 2017-08-22 | 珠海市圣昌电子有限公司 | A kind of High Power Factor phase-cut dimming power supply |
| CN112804797A (en) * | 2019-10-28 | 2021-05-14 | 松下知识产权经营株式会社 | Lighting device and lighting system with same |
| CN112804797B (en) * | 2019-10-28 | 2024-02-09 | 松下知识产权经营株式会社 | Lighting device and lighting system with same |
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