CN105916242A - LED driving device with sub-ultrasonic remote control - Google Patents
LED driving device with sub-ultrasonic remote control Download PDFInfo
- Publication number
- CN105916242A CN105916242A CN201610334430.6A CN201610334430A CN105916242A CN 105916242 A CN105916242 A CN 105916242A CN 201610334430 A CN201610334430 A CN 201610334430A CN 105916242 A CN105916242 A CN 105916242A
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- Prior art keywords
- circuit
- triode
- remote control
- ultra
- sub
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
-
- 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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention relates to an LED driving device with sub-ultrasonic remote control. The LED driving device is characterized by comprising a non-isolated circuit driving unit, wherein the switching on and off of the non-isolated circuit driving unit are controlled by a sub-ultrasonic remote control unit, so as to control the turning on and off of LED lamp beads; and the non-isolated circuit driving unit and the sub-ultrasonic remote control unit are connected with a power supply. The LED driving device with sub-ultrasonic remote control has the advantages that: an LED driving circuit of the LED driving device adopts a non-isolated circuit, omits an isolation transformer, thereby greatly reducing the size, and a sub-ultrasonic remote control circuit is adopted, thereby achieving the sub-ultrasonic remote control function. Moreover, the sub-ultrasonic remote control circuit adopts a triode for controlling the non-isolated circuit driving unit, thereby being long in service life, small in size and low in cost.
Description
Technical field
The present invention relates to the LED drive device of a kind of band Asia ultra-sonic remote control.
Background technology
LED is the most conventional a kind of energy saving lamp.What existing LED used mostly is all every
Release drive circuit, when applying after LED panel lamp, its driving circuit device is external, therefore, is installing
Have to install furred ceiling before LED panel lamp, between furred ceiling and roof, slot milling is to place driving circuit device,
Thus limit the range of application of LED panel lamp.
Existing LED lamp can use switch to control its switch, it would however also be possible to employ remote controller controls it and opens
Close.For using the LED lamp of its switch of switch control rule, it is the most convenient to use, such as in sleep
Before when turning off the light, just have much inconvenience.In order to overcome the problems referred to above, those skilled in the art come up with employing remote control
Device remotely controls the method for LED lamp switch, but this method there is problems of, and one carrys out band in remote controller
Having circuit to be easy for after once dropping damaging, be not suitable for very much having the family of child to use, two to carry out remote controller necessary
Battery to be used, and in the today advocating energy-conserving and environment-protective, the use of battery does not obviously meet environmental requirement.Certainly
Also there is now the LED lamp switched by the action of clapping hands of sensing people, but user the most only can control
The occasion of LED lamp switch just can be clapped hands, and the most all can make the action clapped hands, so can cause
LED lamp is opened or closed mistakenly, brings puzzlement to user.
Summary of the invention
The technical problem to be solved in the present invention is: realize sub-ultrasonic while reducing the volume of LED drive circuit
Ripple remote control.
In order to solve above-mentioned technical problem, the technical scheme is that and provide a kind of band Asia ultra-sonic remote control
LED drive device, it is characterised in that include that non-isolation type circuit drives element circuit communicates, ultrasonic by Asia
Ripple RCU controls conducting and the cut-off of non-isolation type circuit drives unit, thus controls opening of LED lamp bead
It is connected with power supply, wherein with closedown, non-isolation type LED drive unit and sub-ultra-sonic remote control unit:
Sub-ultra-sonic remote control unit includes bridge rectifier two, and two input arm of bridge rectifier two are respectively
Being connected with live wire L and zero line N via respective capacitance-resistance voltage reduction circuit, the output arm of bridge rectifier two connects
Filter circuit of pressure-stabilizing, is output as microphone, selective frequency amplifier circuit, bistable state triggering electricity by filter circuit of pressure-stabilizing
Road provides operating voltage, and the signal output part of microphone is connected with the input of selective frequency amplifier circuit, frequency-selecting amplifies
The signal of the CF that microphone is exported by circuit forms pumping signal after amplifying, and pumping signal makes bistable state
Trigger the state upset of circuit, thus the state controlling triode Q5 is become cut-off from conducting or become from cut-off
Conducting, after triode Q5 cut-off, non-isolation type circuit drives cell operation, LED lamp bead is lit, three poles
After pipe Q5 conducting, non-isolation type circuit drives unit quits work, and LED lamp bead is closed.
Preferably, described non-isolation type LED drive unit includes for the alternating current of input is converted to direct current
Current rectifying and wave filtering circuit, current rectifying and wave filtering circuit is connected, by DC/DC with the DC/DC circuit with constant-current control circuit
The direct current that current rectifying and wave filtering circuit exports is converted to after high-frequency alternating current again in the control of constant-current control circuit by circuit
Under system, high-frequency alternating current is converted to constant-current dc electricity, constant-current dc electricity is described LED lamp bead offer work
Voltage.
Preferably, described DC/DC circuit, based on DC/DC conversion chip, is DC/DC by energy storage filter capacitor C15
The power end of conversion chip is powered；
The output of described bistable trigger-action circuit is connected with the base stage of described triode Q5, described triode Q5's
Grounded emitter, the colelctor electrode of described triode Q5 is connected to the power end of DC/DC conversion chip；
After described triode Q5 turns on, energy storage filter capacitor C15 discharges via described triode Q5, DC/DC
Conversion chip quits work；After described triode Q5 ends, energy storage filter capacitor C15 it is that DC/DC turns
Changing chip and provide operating voltage, DC/DC conversion chip works.
Preferably, described constant-current control circuit uses the inductance coil L1 and inductance coil L2 of series connection.
Preferably, described current rectifying and wave filtering circuit includes bridge rectifier one and to be connected to bridge rectifier one defeated
Go out the filter capacitor C13 in parallel and filter capacitor C14 of end.
Preferably, described bistable trigger-action circuit is based on triode Q3 and triode Q4, triode Q3 and three
Under the excitation of the pumping signal that pole pipe Q4 exports at described selective frequency amplifier circuit, state overturns, so that
The output level of described bistable trigger-action circuit overturns.
Preferably, colelctor electrode and emitter stage span at described triode Q3 are connected to electric capacity C5, or described three
The colelctor electrode of pole pipe Q4 and emitter stage span are connected to electric capacity C8.
Preferably, described selective frequency amplifier circuit includes frequency-selecting signal amplification circuit, frequency-selecting signal amplification circuit defeated
Entering end to be connected with the signal output part of described microphone, connecting on the control end of frequency-selecting signal amplification circuit has
LC resonance circuit so that frequency-selecting signal amplification circuit only amplifies the CF that described microphone (MIC) provides
Signal, the output of frequency-selecting signal amplification circuit connects copped wave and amplifies the input of phase inverter, by copped wave
And the signal that frequency-selecting signal amplification circuit is given by amplification phase inverter carries out copped wave, amplifies paraphase, thus formed
Positive pulse signal, this positive pulse signal input integral circuit, obtain integration positive signal voltage, the positive signal of this integration
Voltage is described pumping signal.
Present invention have the advantage that
1, the LED drive circuit in the present invention is owing to using non-isolation type circuit, eliminates isolating transformer,
Therefore volume is substantially reduced, and therefore, the circuit that the present invention provides can be embedded in any LED lamp, and
The volume of LED lamp will not be increased；
2, the circuit of the present invention is also integrated with sub-ultra-sonic remote control circuit, it is achieved that the merit of sub-ultra-sonic remote control
Can, the sub-ultra-sonic remote control circuit in the present invention can only catch the Asia that user utilizes sub-supersonic remote-controller to send
Ultrasonic wave, thus under the control of sub-ultrasonic wave, realize the switch of LED lamp, use sub-ultra-sonic remote control to have
Some benefit below:
1) for sending the sacculus that the sub-supersonic remote-controller of sub-ultrasonic wave is a band whistle mouth, by pressing
Pressure ball capsule allows whistle mouth send sub-ultrasonic wave, it is not necessary to uses battery, meets environmental requirement, and for there being child
Family for, also there is no concern that Asia supersonic remote-controller is optionally filled in mouth by child, safety in the extreme；
2) circuit provided due to the present invention can only receive the sub-ultrasonic wave of certain frequency, therefore, other sound
Can't make to use the LED lamp action of the present invention, therefore compared with traditional acoustic control lamp, the present invention
Fault-tolerance higher, the sound that will not send unintentionally because of user and misoperation；
3), after using the circuit that the present invention provides, remote control mode can be used to realize the switch of LED lamp, from
And make the use of LED lamp the most convenient, such as when turning off the light before sleeping, the sub-ultrasonic wave of the utilization that lies on a bed
Remote controller just can realize the cut out of LED lamp；When using mosquito net summer, also will not be for beat before turning off the light
Open mosquito net and be entangled with；When turning off the light, without difficultly looking for the switch corresponding with lamp；
4) circuit using the present invention to provide makes the installation of LED lamp the most convenient, is commonly installed LED
During light fixture, in addition to needs power line, in addition it is also necessary to draw and switch the switching line being connected, therefore, all LED
The installation of light fixture all house decoraton when once mounting complete, if need add light fixture again follow-up
If, similar floor lamp, the light fixture of desk lamp one class can only be added, and the present invention need not additionally arrange switching line,
When, after newly-increased LED lamp, only need to it be connected with the power line arranged, installation difficulty is low, very
It is suitable for the installation of follow-up LED lamp；
5) the sub-supersonic remote-controller corresponding to circuit that the present invention provides does not has any internal circuit, the most several
Any damage will not occur, and service life is long, and the most reliable.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of the present invention.
Detailed description of the invention
For making the present invention become apparent, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
In conjunction with Fig. 1, the invention provides the LED drive device of a kind of band Asia ultra-sonic remote control, including sub-super
Sound wave remote controlling unit and non-isolation type LED drive unit, both can be made on one piece of circuit board:
Zero line N and the live wire L that non-isolation type LED drive unit inputs with sub-ultra-sonic remote control units shared.Non-
Isolated form LED drive unit includes bridge rectifier one DX1, and bridge rectifier one DX1 input side is arranged
Necessary fuse F and resistance RV.The outlet side of bridge rectifier one DX1 first connects two filters in parallel
Ripple electric capacity, i.e. filter capacitor C13 and filter capacitor C14.In conventional design, only with a filter capacitor,
But the capacity of the single filter capacitor of small size is big not, and the volume of the enough filter capacitor of capacity is the biggest.
The present invention uses two filter capacitors in parallel, i.e. ensure that volume, in turn ensure that capacity.Bridge rectifier
One DX1 exports via filter capacitor C13 and filter capacitor C14 with based on DC/DC conversion chip IC
The input of DC/DC circuit is connected.The power input pin of DC/DC conversion chip IC connects energy storage filter capacitor
C15, is provided operating voltage by energy storage filter capacitor C15 for DC/DC conversion chip IC.DC/DC conversion chip
IC with as the resistance R18 of peripheral components, resistance R17, resistance R20, resistance R16, resistance R14, resistance
R15 and diode D5 forms DC/DC circuit after connecting according to the databook of chip.DC/DC circuit connects to be had
The constant-current control circuit being made up of the inductance coil T1 connected and inductance coil T2.In the present invention, two are used
The inductance coil of individual series connection substitutes traditional single inductance coil, drives single also for controlling non-isolation type LED
The volume of unit so that it is sufficiently small, can be placed in flat lamp.Will be through bridge rectifier electricity by DC/DC circuit
The direct current of road one DX1 and filter capacitor C13, filter capacitor C14 output exists after being converted to high-frequency alternating current again
Under the control of constant-current control circuit, high-frequency alternating current is converted to constant-current dc electricity.Constant-current dc electricity is by filtering
Electric capacity C16, filter capacitor C17 and resistance R19 provide operating voltage for LED lamp bead so that it is light.
Sub-ultra-sonic remote control unit includes bridge rectifier two DX2, and two of bridge rectifier two DX2 defeated
Enter arm to be connected with live wire L and zero line N via respective capacitance-resistance voltage reduction circuit respectively.In the present embodiment, one group
Capacitance-resistance voltage reduction circuit is made up of resistance R1 in parallel and electric capacity C10, and another group capacitance-resistance voltage reduction circuit is by parallel connection
Resistance R2 and electric capacity C11 composition.In the design of conventional sub-ultra-sonic remote control unit, generally use one group
Capacitance-resistance voltage reduction circuit, why the present invention uses two groups of sub-ultra-sonic remote control unit being because the present invention to need reality
Now common with non-isolation type LED drive unit.Assume to omit in Fig. 1 and be made up of resistance R2 and electric capacity C11
Capacitance-resistance voltage reduction circuit, then be just when the signal on live wire L, the signal on zero line N for time negative, live wire L and
High-voltage signal on zero line N will be loaded directly on voltage-stabiliser tube D1 and filter capacitor C12, cause components and parts
Damaging, therefore, invention increases one group of capacitance-resistance voltage reduction circuit, voltage just adds after being reduced by capacitance-resistance voltage reduction circuit
It is loaded on voltage-stabiliser tube D1 and filter capacitor C12, components and parts are defined protection.Bridge rectifier two DX2
Output arm to reconnect after Zener diode D1 and filter capacitor C12 be microphone MIC, selective frequency amplifier circuit,
Bistable trigger-action circuit provides operating voltage.
Operating voltage is supplied to microphone MIC by resistance R3, and the output signal of microphone MIC is via resistance
R4 and electric capacity C1 is connected to the input of selective frequency amplifier circuit.In the present embodiment, selective frequency amplifier circuit includes choosing
Frequently signal amplification circuit, frequency-selecting signal amplification circuit includes that the base stage of triode Q1, triode Q1 connects Mike
The output of wind MIC, the colelctor electrode of triode Q1 connects the LC resonance circuit being made up of inductance L and electric capacity C2,
Frequency-selecting signal amplification circuit is made only to amplify the signal of the CF that microphone MIC provides.Triode Q1's
Grounded emitter.The colelctor electrode of triode Q1 connects copped wave via electric capacity C3 simultaneously and amplifies phase inverter.Cut
Involving amplification phase inverter and include triode Q2, the base stage of triode Q2 is via electric capacity C3 connecting triode Q1
Colelctor electrode.Diode D2, the current collection of triode Q2 is bridged between the base stage and emitter stage of triode Q2
Pole connects resistance R5, copped wave and amplification phase inverter the signal provided frequency-selecting signal amplification circuit is cut
Ripple, amplification paraphase, thus on the colelctor electrode of triode Q2, form positive pulse signal.By resistance R6 and electric capacity
C4 forms integrating circuit, obtains integration positive signal voltage after positive pulse signal input integral circuit.
Integration positive signal voltage input bistable trigger-action circuit.Bistable trigger-action circuit in the present invention uses routine
The circuit being made up of triode Q3 and triode Q4, also include resistance R7, resistance R9, resistance R8, two
Pole pipe D3, electric capacity C6, resistance R11, resistance R12, resistance R10, diode D4, electric capacity C7.
Triode Q3 when the LED driven by the present invention is closed, in bistable trigger-action circuit
Conducting, and triode Q4 cut-off, now the base stage of triode Q5 is in high potential, and triode Q5 turns on,
The power input pin ground connection of DC/DC conversion chip IC, DC/DC conversion chip IC does not works.When user presses
After pressure once sub-supersonic remote-controller, microphone MIC captures a signal, and now selective frequency amplifier circuit produces
After one output signal, the state of bistable trigger-action circuit overturns, and the state of triode Q3 is by turning on change
For cut-off, the state of triode Q4 is then become conducting from cut-off, and the base stage of triode Q5 is become from high potential
Electronegative potential so that electric capacity C15 is its power supply by the power input pin of DC/DC conversion chip IC, thus
LED lamp bead is lighted.After user presses once sub-supersonic remote-controller again, under selective frequency amplifier circuit produces
After one output signal, the state of bistable trigger-action circuit overturns again, and the state of triode Q3 is by cutting
Only becoming conducting, the state of triode Q4 is then become cut-off from conducting, and the base stage of triode Q5 is by electronegative potential
Become high potential so that the power input pin ground connection of DC/DC conversion chip IC, DC/DC conversion chip IC
Do not work, so that LED lamp bead is extinguished.
After controlling to power for the first time, LED lamp bead is lighted or is closed, the relatively conventional bistable state of the present invention
The change that triggering circuit is made is: flying capcitor C5 on triode Q3, or bridging electricity on triode Q4
Hold C8.Select to add electric capacity C5 or electric capacity C8 so that for the first time after power supply, LED lamp bead can be lighted or
Remain turned-off.
The output signal of bistable trigger-action circuit via resistance R13 and the base stage of electric capacity C8 connecting triode Q5,
The grounded emitter of triode Q5, the colelctor electrode of triode Q5 is connected to the power end of DC/DC conversion chip.
After triode Q5 turns on, energy storage filter capacitor C15 discharges via triode Q5, and DC/DC conversion chip stops
Only work；After triode Q5 ends, energy storage filter capacitor C15 it is DC/DC conversion chip offer work
Voltage, DC/DC conversion chip works.
Claims (8)
1. the LED drive device of a band Asia ultra-sonic remote control, it is characterised in that include that non-isolation type circuit drives
Moving cell circuit communicates, sub-ultra-sonic remote control unit control the conducting of non-isolation type circuit drives unit and cut
Only, thus control opening and closing of LED lamp bead, non-isolation type LED drive unit and sub-ultra-sonic remote control list
Unit is connected with power supply, wherein:
Sub-ultra-sonic remote control unit includes bridge rectifier two (DX2), bridge rectifier two (DX2)
Two input arm are connected with live wire L and zero line N via respective capacitance-resistance voltage reduction circuit respectively, bridge rectifier
The output arm of two (DX2) connects filter circuit of pressure-stabilizing, by filter circuit of pressure-stabilizing be output as microphone (MIC),
Selective frequency amplifier circuit, bistable trigger-action circuit provide operating voltage, the signal output part of microphone (MIC) with
The input of selective frequency amplifier circuit is connected, selective frequency amplifier circuit be the CF exported by microphone (MIC)
Signal forms pumping signal after amplifying, and pumping signal makes the state of bistable trigger-action circuit overturn, thus controls
The state of triode Q5 is become cut-off from conducting or is become conducting from cut-off, after triode Q5 cut-off, and non-isolated
Type circuit drives cell operation, LED lamp bead is lit, after triode Q5 conducting, non-isolation type circuit drives
Unit quits work, and LED lamp bead is closed.
The LED drive device of a kind of band Asia ultra-sonic remote control the most as claimed in claim 1, it is characterised in that
Described non-isolation type LED drive unit includes for the alternating current of input is converted to galvanic rectifying and wave-filtering
Circuit, current rectifying and wave filtering circuit is connected with the DC/DC circuit with constant-current control circuit, by DC/DC circuit by whole
The direct current of stream filter circuit output is converted to after high-frequency alternating current again under the control of constant-current control circuit, by height
Frequently alternating current is converted to constant-current dc electricity, constant-current dc electricity provide operating voltage for described LED lamp bead.
The LED drive device of a kind of band Asia ultra-sonic remote control the most as claimed in claim 2, it is characterised in that:
Described DC/DC circuit, based on DC/DC conversion chip, is DC/DC conversion chip by energy storage filter capacitor C15
Power end is powered；
The output of described bistable trigger-action circuit is connected with the base stage of described triode Q5, described triode Q5's
Grounded emitter, the colelctor electrode of described triode Q5 is connected to the power end of DC/DC conversion chip；
After described triode Q5 turns on, energy storage filter capacitor C15 discharges via described triode Q5, DC/DC
Conversion chip quits work；After described triode Q5 ends, energy storage filter capacitor C15 it is that DC/DC turns
Changing chip and provide operating voltage, DC/DC conversion chip works.
The LED drive device of a kind of band Asia ultra-sonic remote control the most as claimed in claim 2, it is characterised in that
Described constant-current control circuit uses the inductance coil L1 and inductance coil L2 of series connection.
The LED drive device of a kind of band Asia ultra-sonic remote control the most as claimed in claim 2, it is characterised in that
Described current rectifying and wave filtering circuit includes bridge rectifier one (DX1) and is connected to bridge rectifier one (DX1)
The filter capacitor C13 in parallel of output and filter capacitor C14.
The LED drive device of a kind of band Asia ultra-sonic remote control the most as claimed in claim 1, it is characterised in that
Described bistable trigger-action circuit based on triode Q3 and triode Q4, triode Q3 and triode Q4 described
Under the excitation of the pumping signal of selective frequency amplifier circuit output, state overturns, so that described bistable state triggers
The output level of circuit overturns.
The LED drive device of a kind of band Asia ultra-sonic remote control the most as claimed in claim 6, it is characterised in that
Colelctor electrode at described triode Q3 is connected to electric capacity C5, or the collection at described triode Q4 with emitter stage span
Electrode and emitter stage span are connected to electric capacity C8.
The built-in driving integral panel lamp of a kind of band Asia ultra-sonic remote control the most as claimed in claim 1, its feature
Being, described selective frequency amplifier circuit includes frequency-selecting signal amplification circuit, the input of frequency-selecting signal amplification circuit with
The signal output part of described microphone (MIC) is connected, and connects and have on the control end of frequency-selecting signal amplification circuit
LC resonance circuit so that frequency-selecting signal amplification circuit only amplifies the CF that described microphone (MIC) provides
Signal, the output of frequency-selecting signal amplification circuit connects copped wave and amplifies the input of phase inverter, by copped wave
And the signal that frequency-selecting signal amplification circuit is given by amplification phase inverter carries out copped wave, amplifies paraphase, thus formed
Positive pulse signal, this positive pulse signal input integral circuit, obtain integration positive signal voltage, the positive signal of this integration
Voltage is described pumping signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610334430.6A CN105916242A (en) | 2016-05-19 | 2016-05-19 | LED driving device with sub-ultrasonic remote control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610334430.6A CN105916242A (en) | 2016-05-19 | 2016-05-19 | LED driving device with sub-ultrasonic remote control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105916242A true CN105916242A (en) | 2016-08-31 |
Family
ID=56749284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610334430.6A Pending CN105916242A (en) | 2016-05-19 | 2016-05-19 | LED driving device with sub-ultrasonic remote control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105916242A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100201270A1 (en) * | 2009-02-10 | 2010-08-12 | Ledtech Electronics | Light emitting diode light tube and ac switching power supply thereof |
| CN101873746A (en) * | 2010-06-02 | 2010-10-27 | 杭州丽晶照明电器有限公司 | Constant current source driving circuit for medium and high power LED lamps |
| CN202799305U (en) * | 2012-09-05 | 2013-03-13 | 深圳市皓璟照明科技有限公司 | Intelligent control light-emitting diode (LED) lighting circuit |
| CN203167377U (en) * | 2013-04-03 | 2013-08-28 | 深圳斯派克节能服务有限公司 | A non-isolated driving power supply used for a LED fluorescent lamp |
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2016
- 2016-05-19 CN CN201610334430.6A patent/CN105916242A/en active Pending
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|---|---|---|---|---|
| US20100201270A1 (en) * | 2009-02-10 | 2010-08-12 | Ledtech Electronics | Light emitting diode light tube and ac switching power supply thereof |
| CN101873746A (en) * | 2010-06-02 | 2010-10-27 | 杭州丽晶照明电器有限公司 | Constant current source driving circuit for medium and high power LED lamps |
| CN202799305U (en) * | 2012-09-05 | 2013-03-13 | 深圳市皓璟照明科技有限公司 | Intelligent control light-emitting diode (LED) lighting circuit |
| CN203167377U (en) * | 2013-04-03 | 2013-08-28 | 深圳斯派克节能服务有限公司 | A non-isolated driving power supply used for a LED fluorescent lamp |
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| 55HWZ等: ""亚超声遥控开关的制作电路及工作原理"", 《中国百科网》 * |
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Application publication date: 20160831 |