CN104684220B - It is suitable to the AC electric power regulator and method of work, street lamp of timesharing light modulation - Google Patents
It is suitable to the AC electric power regulator and method of work, street lamp of timesharing light modulation Download PDFInfo
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- CN104684220B CN104684220B CN201510104910.9A CN201510104910A CN104684220B CN 104684220 B CN104684220 B CN 104684220B CN 201510104910 A CN201510104910 A CN 201510104910A CN 104684220 B CN104684220 B CN 104684220B
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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
- 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
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Abstract
The invention discloses a kind of be suitable to AC electric power regulator and method of work, the street lamp that timesharing is dimmed, this AC electric power regulator includes：Power conversion circuit and the drive control unit for being suitable to gather the input civil power cycle；Clock module is provided with wherein described drive control unit, and is suitable to be commutated by power conversion circuit control circuit according to the civil power cycle, and control the output voltage of power conversion circuit according to the period, to realize timesharing brightness adjustment control；The present invention is for produced problem in existing product in the market, and the phenomenon that reliability is poor and service life is shorter, the present invention provides a kind of AC electric power regulator to achieve at times to alternating current blood pressure lowering Regulation Control, to solve street lamp Intelligent time-sharing brightness adjustment control, it is remarkably improved system reliability and stability, the purpose of raising system bulk life time is reached, stable street lighting is finally reached and is saved the purpose of electric power energy loss.
Description
Technical field
The invention belongs to power converter or field of power electronics, adjust street lamp power supply, road lamp power supply voltage by timesharing, reach to street lamp
The Intelligent adjustment of brightness, is finally reached the purpose of saves energy loss.
Background technology
Most of street lamps are that sunset is turned on light sunrise bright light at present in the prior art, and timesharing brightness Based Intelligent Control is not implemented.
Traditional Time-sharing control is to realize the adjustment of street lamp input voltage by time relay regulation transformer tapping and reach bright to street lamp
Degree is adjusted, and with the development of semiconductor switch technology, present market has been engendered by semiconductor device such as IGBT
Based Intelligent Control of the control realization to street lamp, is finally reached the purpose of energy saving.
Prior art suffers from the drawback that, i.e., does not carry out the Based Intelligent Control of timesharing brightness to street lamp, can cause great energy
Source wastes；But traditional control mode not only control mode single and also to street lamp impact larger, cause street lamp service life
Shorten；Therefore, it is shorter that the intelligent controller for road lamp that existing market occurs is used mostly the life-span, and repair rate is high.
Content of the invention
It is an object of the invention to provide a kind of AC electric power regulator and its method of work, to solve street lamp Intelligent time-sharing
The technical problem of brightness adjustment control.
In order to solve above-mentioned technical problem, the invention provides a kind of AC electric power regulator, the AC power
Actuator is connected with load by output filter circuit, and the AC electric power regulator includes：Power conversion circuit and it is suitable to
The drive control unit in collection input civil power cycle；Clock module is provided with wherein described drive control unit, and is suitable to basis
The civil power cycle is commutated by power conversion circuit control circuit, and controls the output voltage of power conversion circuit according to the period, with
Realize timesharing brightness adjustment control.
Further, include to preferably realize timesharing brightness adjustment control, the power conversion circuit：It is located at the of major loop
One switch and second switch, and the first continued flow switch and the second continued flow switch, first, second continued flow switch are in parallel respectively
First, second fly-wheel diode；The circuit commutation, i.e., when civil power is input in positive half cycle, the drive control unit is fitted
In control first switch conducting, second switch copped wave, and the shut-off of the first continued flow switch, the second continued flow switch are turned on, just to build
To DC chopper circuit, realize constituting current stream forward loop by the second continued flow switch, the first fly-wheel diode；And
When input civil power is in negative half period, the drive control unit is suitable to control first switch copped wave, and second switch is turned on, and first
Continued flow switch is turned on, and the second continued flow switch is turned off, to build negative sense DC chopper circuit, realize by the first continued flow switch, the
Two fly-wheel diodes constitute current stream return circuit；The drive control unit is further adapted for being opened by control first according to the period
Close or second switch copped wave is adjusted with realizing the output voltage.
Further, the input of the power conversion circuit is additionally provided with input filter circuit, i.e., in power conversion circuit
Input one electric capacity C1 of parallel connection.
Further, the drive control unit includes：Drive module and control circuit, the drive module include：Voltage
Commutation detection module and the drive module controlled by CPLD modules, the voltage commutation detection module are suitable to mains voltage signal
Be converted to commutation signal to send to CPLD modules；When processor module in the control circuit is suitable to send by clock signal
Section control signal is to the CPLD modules；The CPLD modules are suitable to according to commutation signal and period control signal by driving mould
Block controls each switch on and off.
Another aspect, the present invention additionally provide a kind of AC electric power regulator to solve same technical problem
Method of work.
The AC electric power regulator is connected with load by output filter circuit, the AC electric power regulator bag
Include：Power conversion circuit and the drive control unit for being suitable to gather the input civil power cycle；Set in wherein described drive control unit
There is clock module；The method of work of the AC electric power regulator includes：According to the civil power cycle, the drive control unit leads to
Overpower translation circuit control circuit commutates, and controls the output voltage of power conversion circuit according to the period, to realize that timesharing is adjusted
Photocontrol.
Further, the power conversion circuit includes：First switch and the second switch of major loop is located at, and first continues
Stream switch and the second continued flow switch, first, second continued flow switch distinguish first, second fly-wheel diode in parallel；The electricity
Road is commutated, i.e., when civil power is input in positive half cycle, the drive control unit is suitable to control first switch conducting, second switch
Chop control, and the shut-off of the first continued flow switch, the second continued flow switch turn on, to build forward dc chopper circuit, realize passing through
Second continued flow switch, the first fly-wheel diode constitute current stream forward loop；And when civil power is input in negative half period, institute
State drive control unit to be suitable to control first switch chop control, second switch is turned on, and the conducting of the first continued flow switch, and second continues
Stream switch OFF, to build negative sense DC chopper circuit, realizes constituting electric current by the first continued flow switch, the second fly-wheel diode
Afterflow return circuit；The drive control unit is further adapted for according to the period is by controlling first switch or second switch copped wave is with reality
The existing output voltage is adjusted.
Further, in the forward dc chopper circuit, when second switch is in high frequency chopping copped wave, if second switch
Turn on, then the filter inductance storage energy in output filter circuit；If second switch is turned off, the current stream is constituted
Forward loop；And in the negative sense DC chopper circuit, when first switch is in high frequency chopping copped wave, if first switch is led
Logical, then the filter inductance in output filter circuit stores energy；If first switch is turned off, the current stream is constituted anti-
To loop.
Further, the drive control unit includes：Drive module and control circuit, wherein described drive module include：
Voltage commutation detection module and the drive module controlled by CPLD modules, the voltage commutation detection module are used for line voltage
Signal is converted to commutation signal and sends to CPLD modules；Processor module in the control circuit is suitable to send out by clock signal
Period control signal is sent to the CPLD modules；The CPLD modules are suitable to according to commutation signal and period control signal by driving
Dynamic model block controls each switch on and off.
The third aspect, present invention also offers a kind of street lamp.
The AC electric power regulator is installed in the circuit of the street lamp.
The invention has the beneficial effects as follows, the present invention is for produced problem in existing product in the market, and reliability
The shorter phenomenon of poor and service life, the present invention provide a kind of AC electric power regulator to achieve at times to exchange
Electric blood pressure lowering Regulation Control, to solve street lamp Intelligent time-sharing brightness adjustment control, is remarkably improved system reliability and stability, reaches
The purpose of raising system bulk life time, is finally reached stable street lighting and saves the purpose of electric power energy loss.
Description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 shows the circuit theory diagrams of AC electric power regulator；
Fig. 2 shows the circuit theory diagrams of second switch conducting in forward dc chopper circuit；
Fig. 3 shows second switch breaking circuit schematic diagram in forward dc chopper circuit；
Fig. 4 shows the circuit theory diagrams of first switch conducting in reverse DC chopper circuit；
Fig. 5 shows the circuit theory diagrams of first switch shut-off in reverse DC chopper circuit.
In figure：First switch S1, second switch S2, the first continued flow switch S3, the second continued flow switch S4, the first diode
VD1, the second diode VD2, the first fly-wheel diode VD3, the second fly-wheel diode VD4, filter inductance L, electric capacity C1, C2 bear
Carry R.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are simplified schematic diagram, only with
The basic structure of the illustration explanation present invention, therefore which only shows the composition relevant with the present invention.
Embodiment 1
Fig. 1 shows the circuit theory diagrams of AC electric power regulator.
As shown in figure 1, the AC electric power regulator of the present invention, the AC electric power regulator is by exporting filtered electrical
Road is connected with load R (being such as but not limited to street lamp), and the AC electric power regulator includes：Power conversion circuit and it is suitable to
The drive control unit in collection input civil power cycle；Clock module is provided with wherein described drive control unit, and is suitable to basis
The civil power cycle is commutated by power conversion circuit control circuit, and controls the output voltage of power conversion circuit according to the period, with
Realize timesharing brightness adjustment control.
The purpose of this AC electric power regulator is to realize satisfying the need according to the period control of light working voltage, to reach point
When brightness adjustment control purpose.
Specific embodiment with regard to forward dc chopper circuit, negative sense DC chopper circuit is as follows：
As shown in Figures 2 to 5, the power conversion circuit includes：It is located at first switch S1 and the second switch of major loop
S2, and the first continued flow switch S3 and the second continued flow switch S4, the first, second continued flow switch S4 distinguish the first afterflow in parallel
Diode VD3, the second fly-wheel diode VD4；The circuit commutation, i.e., when civil power is input in positive half cycle, the driving control
Unit processed is suitable to control the conducting of first switch S1, second switch S2 copped waves, and the first continued flow switch S3 shut-offs, the second continued flow switch
S4 is turned on, and to build forward dc chopper circuit, realizes constituting electricity by the second continued flow switch S4, the first fly-wheel diode VD3
Stream afterflow forward loop；And when civil power is input in negative half period, the drive control unit is suitable to control first switch S1
Copped wave, second switch S2 are turned on, and the first continued flow switch S3 conductings, and the second continued flow switch S4 is turned off, cut with building negative sense direct current
Wave circuit, realizes constituting current stream return circuit by the first continued flow switch S3, the second fly-wheel diode VD4；The driving
Control unit is further adapted for being adjusted to realize the output voltage by controlling first switch S1 or second switch S2 copped waves according to the period
Section.
Optionally, first switch S1, second switch S2 be similarly parallel with diode (the first diode VD1 in figure,
Second diode VD2), S2 is switched to play a part of protection first, second.
As shown in Figures 2 and 3 (in figure, arrow represents the sense of current), specifically, filter is provided with the output filter circuit
Ripple inductance is used for storage energy；I.e. when second switch S2 is in high frequency chopping copped wave, if second switch S2 conductings, output filter
Filter inductance storage energy in wave circuit；If second switch S2 is turned off, two pole of the second continued flow switch S4 and the first afterflow
Pipe VD3 provides current stream forward loop, while the energy release for storing is continued powering load by filter inductance, it is ensured that
Output current seriality.
As shown in Figure 4 and Figure 5 (in figure, arrow represents the sense of current), specifically, when first switch S1 is in high frequency chopping
Filter inductance storage energy during copped wave, if the conducting of first switch S1, in output filter circuit；If first switch S1 is turned off
When, then the first continued flow switch S3 and the second fly-wheel diode VD4 provides current stream return circuit, while filter inductance will be deposited
The energy release of storage, continues powering load, it is ensured that output current seriality.
The input of the power conversion circuit is additionally provided with input filter circuit, i.e., power conversion circuit input simultaneously
Join an electric capacity C1, to realize the effect for filtering high frequency electric harmonic wave and voltage harmonic, serve due to voltage spikes in absorption civil power,
And protect the effect of first switch S1 and second switch S2 and power conversion circuit.
The drive control unit includes：Drive module and control circuit, the drive module include：Voltage commutation is detected
Module and the drive module controlled by CPLD modules, wherein described voltage commutation detection module are suitable to change mains voltage signal
Send to CPLD modules for commutation signal；Processor module in the control circuit is suitable to send period control by clock signal
Signal processed is to the CPLD modules；The CPLD modules are suitable to pass through drive module control according to commutation signal and period control signal
Make each switch on and off.The CPLD modules are suitable to control each switch according to commutation signal and period control signal by drive module
Break-make.
Wherein, the commutation signal includes the control signal for controlling first, second continued flow switch S4 shut-offs or conducting, and
The conducting of control first switch S1 and second switch S2 conductings in negative sense DC chopper circuit in forward dc chopper circuit
Control signal；The period control signal includes pwm signal that is changing dutycycle according to the period and being suitable to chop control.
Optionally, the processor module such as but not limited to adopts single-chip microcomputer, and the control circuit also includes：With monolithic
The display circuit that machine is connected and key circuit and feedback of voltage and current circuit, by exchanging described in feedback of voltage and current electric circuit inspection
The input voltage and input current of electrical power regulator and output current voltage.Period control is realized by key circuit, by showing electricity
Road is checking input, the output current voltage of AC electric power regulator.
The output filter circuit specifically includes filter inductance L, output capacitance C2, and the load in parallel with the electric capacity
(street lamp), output capacitance C2 are connected with filter inductance L with after load parallel connection.
Embodiment 2
As shown in Figures 1 to 5, on the basis of embodiment 1, present invention also offers the work of the AC electric power regulator
Make method.
Concrete implementation mode, the AC electric power regulator are connected with load by output filter circuit, the friendship
Stream electrical power regulator includes：Power conversion circuit and the drive control unit for being suitable to gather the input civil power cycle；Wherein described
Clock module is provided with drive control unit.
The method of work of the AC electric power regulator includes：According to the civil power cycle, the drive control unit passes through
Power conversion circuit control circuit commutates, and controls the output voltage of power conversion circuit according to the period, to realize that timesharing is dimmed
Control.
The power conversion circuit includes：It is located at first switch S1 and the second switch S2 of major loop, and the first afterflow
Switch S3 and the second continued flow switch S4, the first, second continued flow switch S4 distinguish first, second fly-wheel diode VD4 in parallel；
The circuit commutation, i.e., when civil power is input in positive half cycle, the drive control unit is suitable to control the conducting of first switch S1,
Second switch S2 chop controls, and the first continued flow switch S3 shut-offs, the second continued flow switch S4 is turned on, to build forward dc copped wave
Circuit, realizes constituting current stream forward loop by the second continued flow switch S4, the first fly-wheel diode VD3；And in input
When civil power is in negative half period, the drive control unit is suitable to control first switch S1 chop control, and second switch S2 is turned on, and
First continued flow switch S3 is turned on, and the second continued flow switch S4 is turned off, and to build negative sense DC chopper circuit, realizes passing through the first afterflow
Switch S3, the second fly-wheel diode VD4 constitute current stream return circuit；The drive control unit is further adapted for logical according to the period
Cross control first switch S1 or second switch S2 copped waves to adjust to realize the output voltage.
Further, in the forward dc chopper circuit, when second switch S2 is in high frequency chopping copped wave, if second
Switch S2 is turned on, then the filter inductance storage energy in output filter circuit；If second switch S2 is turned off, constitute described
Current stream forward loop, while the energy release for storing is continued powering load, it is ensured that output current is continuous by filter inductance
Property.
In the negative sense DC chopper circuit, when first switch S1 is in high frequency chopping copped wave, if first switch S1
Turn on, then the filter inductance storage energy in output filter circuit；If first switch S1 is turned off, constitute the electric current and continue
Stream return circuit, while the energy release for storing is continued powering load, it is ensured that output current seriality by filter inductance.
As the present embodiment one kind preferred embodiment, the drive control unit includes：Drive module and control
Circuit, wherein described drive module include：Voltage commutation detection module and the drive module controlled by CPLD modules, the voltage
Commutation detection module is sent to CPLD modules for mains voltage signal is converted to commutation signal；Place in the control circuit
Reason device module is suitable to send period control signal to the CPLD modules by clock signal；The CPLD modules are suitable to basis and change
Each switch on and off is controlled by drive module to signal and period control signal.
Embodiment 3
On the basis of embodiment 1, present invention also offers a kind of street lamp, installs the alternating current in the circuit of the street lamp
Power governor.
The AC electric power regulator of the present invention by first switch S1, second switch S2, the first continued flow switch S3, second
Continued flow switch S4 and output filter circuit are collocated with each other, can effectively regulated output voltage (i.e. output filter circuit input electricity
Pressure), Based Intelligent Control output voltage is realized street lamp timesharing brightness adjustment control, is remarkably improved system reliability and stability, reaches
The purpose of raising system bulk life time, is finally reached stable street lighting and saves the purpose of electric power energy loss.
With the above-mentioned desirable embodiment according to the present invention as enlightenment, by above-mentioned description, relevant staff is complete
Various change and modification can be carried out entirely in the range of without departing from this invention technological thought.The technology of this invention
Property scope is not limited to the content in description, it is necessary to determine its technical scope according to right.
Claims (7)
1. a kind of AC electric power regulator, the AC electric power regulator are connected with load by output filter circuit, its
It is characterised by, the AC electric power regulator includes：Power conversion circuit and the driving control for being suitable to gather the input civil power cycle
Unit processed；Wherein
Clock module is provided with the drive control unit, and is suitable to pass through power conversion circuit control circuit according to the civil power cycle
Commutation, and the output voltage of power conversion circuit is controlled according to the period, to realize timesharing brightness adjustment control；
The power conversion circuit includes：It is located at first switch and the second switch of major loop, and the first continued flow switch and the
Two continued flow switch, first, second continued flow switch distinguish first, second fly-wheel diode in parallel；
The circuit commutation, i.e., when civil power is input in positive half cycle, the drive control unit is suitable to control first switch and leads
Logical, second switch copped wave, and the shut-off of the first continued flow switch, the second continued flow switch is turned on, to build forward dc chopper circuit, real
Current stream forward loop is constituted by the second continued flow switch, the first fly-wheel diode now；And
When civil power is input in negative half period, the drive control unit is suitable to control first switch copped wave, and second switch is turned on,
And the first continued flow switch conducting, the second continued flow switch is turned off, and to build negative sense DC chopper circuit, realizes opening by the first afterflow
Close, the second fly-wheel diode constitutes current stream return circuit；
The drive control unit is further adapted for described defeated to realize by controlling first switch or second switch copped wave according to the period
Go out voltage-regulation.
2. AC electric power regulator according to claim 1, it is characterised in that
The input of the power conversion circuit is additionally provided with input filter circuit, i.e., in the input parallel connection one of power conversion circuit
Electric capacity C1.
3. AC electric power regulator according to claim 1, it is characterised in that the drive control unit includes：Drive
Dynamic model block and control circuit, wherein
The drive module includes：Voltage commutation detection module and the drive module controlled by CPLD modules；
The voltage commutation detection module is suitable to for mains voltage signal to be converted to commutation signal and sends to CPLD modules；
Processor module in the control circuit is suitable to send period control signal to the CPLD modules by clock signal；
The CPLD modules are suitable to control each switch on and off according to commutation signal and period control signal by drive module.
4. a kind of method of work of AC electric power regulator, it is characterised in that
The AC electric power regulator is connected with load by output filter circuit, and the AC electric power regulator includes：
Power conversion circuit and the drive control unit for being suitable to gather the input civil power cycle；Wherein
Clock module is provided with the drive control unit；
The method of work of the AC electric power regulator includes：According to the civil power cycle, the drive control unit passes through power
Translation circuit control circuit commutates, and controls the output voltage of power conversion circuit according to the period, realizes timesharing brightness adjustment control；
The power conversion circuit includes：It is located at first switch and the second switch of major loop, and the first continued flow switch and the
Two continued flow switch, first, second continued flow switch distinguish first, second fly-wheel diode in parallel；
The circuit commutation, i.e., when civil power is input in positive half cycle, the drive control unit is suitable to control first switch and leads
Logical, second switch chop control, and the shut-off of the first continued flow switch, the second continued flow switch is turned on, to build forward dc copped wave electricity
Road, realizes constituting current stream forward loop by the second continued flow switch, the first fly-wheel diode；And
When civil power is input in negative half period, the drive control unit is suitable to control first switch chop control, second switch
Conducting, and the conducting of the first continued flow switch, the second continued flow switch are turned off, and to build negative sense DC chopper circuit, realize passing through first
Continued flow switch, the second fly-wheel diode constitute current stream return circuit；
The drive control unit is further adapted for described defeated to realize by controlling first switch or second switch copped wave according to the period
Go out voltage-regulation.
5. the method for work of AC electric power regulator according to claim 4, it is characterised in that
In the forward dc chopper circuit, when second switch is in high frequency chopping copped wave, if second switch conducting, exports
Filter inductance storage energy in filter circuit；If second switch is turned off, the current stream forward loop is constituted；With
And
In the negative sense DC chopper circuit, when first switch is in high frequency chopping copped wave, if first switch conducting, exports
Filter inductance storage energy in filter circuit；If first switch is turned off, the current stream return circuit is constituted.
6. the method for work of AC electric power regulator according to claim 5, it is characterised in that
The drive control unit includes：Drive module and control circuit, wherein
The drive module includes：Voltage commutation detection module and the drive module controlled by CPLD modules；
The voltage commutation detection module is sent to CPLD modules for mains voltage signal is converted to commutation signal；
Processor module in the control circuit is suitable to send period control signal to the CPLD modules by clock signal；
The CPLD modules are suitable to control each switch on and off according to commutation signal and period control signal by drive module.
7. a kind of street lamp, it is characterised in that install in the circuit of the street lamp just like alternating current described in any one of claim 1-3
Power governor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510104910.9A CN104684220B (en) | 2015-03-10 | 2015-03-10 | It is suitable to the AC electric power regulator and method of work, street lamp of timesharing light modulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510104910.9A CN104684220B (en) | 2015-03-10 | 2015-03-10 | It is suitable to the AC electric power regulator and method of work, street lamp of timesharing light modulation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104684220A CN104684220A (en) | 2015-06-03 |
| CN104684220B true CN104684220B (en) | 2017-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510104910.9A Active CN104684220B (en) | 2015-03-10 | 2015-03-10 | It is suitable to the AC electric power regulator and method of work, street lamp of timesharing light modulation |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201462658U (en) * | 2009-03-01 | 2010-05-12 | 山西吉天利半导体照明有限公司 | Wind and solar integrated LED road lamp with functions of sharing time, dimming and monitoring failures |
| CN102135238A (en) * | 2010-01-21 | 2011-07-27 | 亮芯科技股份有限公司 | Light adjustable alternating current LED lamp and dimmer thereof |
| CN204425740U (en) * | 2015-03-10 | 2015-06-24 | 常州尼诺光电科技有限公司 | Be suitable for AC electric power regulator and the street lamp of timesharing light modulation |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6459606B1 (en) * | 2001-09-27 | 2002-10-01 | York International Corporation | Control system and method for four-quadrant switches in three-phase PWM AC voltage regulators |
| WO2013148221A1 (en) * | 2012-03-28 | 2013-10-03 | Lutron Electronics Co., Inc. | Method and apparatus for phase-controlling a load |
| CN204119046U (en) * | 2014-10-17 | 2015-01-21 | 智造节能科技（苏州）有限公司 | A kind of high frequency chopping sinusoidal wave output circuit |
-
2015
- 2015-03-10 CN CN201510104910.9A patent/CN104684220B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201462658U (en) * | 2009-03-01 | 2010-05-12 | 山西吉天利半导体照明有限公司 | Wind and solar integrated LED road lamp with functions of sharing time, dimming and monitoring failures |
| CN102135238A (en) * | 2010-01-21 | 2011-07-27 | 亮芯科技股份有限公司 | Light adjustable alternating current LED lamp and dimmer thereof |
| CN204425740U (en) * | 2015-03-10 | 2015-06-24 | 常州尼诺光电科技有限公司 | Be suitable for AC electric power regulator and the street lamp of timesharing light modulation |
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| Publication number | Publication date |
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| CN104684220A (en) | 2015-06-03 |
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