CN105282903A - An improved-type light-emitting diode driving system and light-emitting diode driving devices - Google Patents
An improved-type light-emitting diode driving system and light-emitting diode driving devices Download PDFInfo
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- CN105282903A CN105282903A CN201410281364.1A CN201410281364A CN105282903A CN 105282903 A CN105282903 A CN 105282903A CN 201410281364 A CN201410281364 A CN 201410281364A CN 105282903 A CN105282903 A CN 105282903A
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Abstract
The invention discloses an improved-type light-emitting diode driving system and light-emitting diode driving devices. The light-emitting diode driving system comprises the plurality of light-emitting diode driving devices and a transmission line, wherein the transmission line is electrically connected to the plurality of light-emitting diode driving devices. Each light-emitting diode driving device comprises a voltage regulator, a synchronizing signal generation circuit and a synchronous control logic circuit. The voltage regulator transmits a first voltage to the synchronizing signal generation circuit; after the synchronizing signal generation circuit receives the first voltage, the synchronizing signal generation circuit generates a second voltage; the synchronizing signal generation circuit enables the first voltage to subtract the second voltage to obtain a synchronizing signal; the synchronizing signal generation circuit transmits the synchronizing signal to the synchronous control logic circuit; and by means of the plurality of the synchronizing signals, the plurality of light-emitting diode driving devices drive the plurality of light-emitting diodes synchronously.
Description
Technical field
The present invention has about a kind of LED drive system and light emitting diode drive device, particularly a kind of improved light emitting diode drive system and light emitting diode drive device.
Background technology
Current LED string light module can be divided into tandem and parallel two kinds of connected modes haply, and the LED string light module of these two kinds of modes is also extensively used in building outward appearance, trees, signboard by user and makes on scenery, beautiful with the outward appearance increasing these things.
And at existing in-line LED string light module, that the LED string light module organized is connected in series more, and the serial number of LED string light module is determined according to the object volume size of coiling, and controlled by the LED light lamp group of controller to all LED string light modules of first LED string light module after concatenation.
Although, this kind of in-line connected mode, make LED string light module be easy to series connection to use, but in use, as long as when having one group of LED string light module fault, control signal will be caused to transmit, cause the LED string light module of the back segment of the LED string light module of this group fault not receive any control signal, and cause the LED string light module of back segment all cannot be lit.
In addition, be the LED string light module organized and this controller are connected in parallel at parallel LED string light module, each LED string light module will have a control line and addressed line to control more.If during the LED string light module of 10 groups in parallel, this controller just must utilize 10 control lines and 10 addressed line to control 10 groups of LED string light modules.
This kind in use parallel, when having one group of LED string light module to break down, can not have influence on the control of other LED string light modules.But, when LED string light module quantity in parallel is more, relation control line and addressed line more, causes the complexity of circuit, not easily make, and cost is high.
No matter but be tandem or parallel aspect, all need to use multiple power line or holding wire, reach the object making LED string light module variations in light.And when raw material goes up day by day serious now, the use that can reduce transmission line just can reduce costs widely.
Summary of the invention
For improving the shortcoming of above-mentioned prior art, the object of the present invention is to provide a kind of improved light emitting diode drive system and light emitting diode drive device.
For reaching above-mentioned purpose of the present invention, the invention provides a kind of improved light emitting diode drive system, be applied to an AC power feeding mechanism, a current rectifying and wave filtering circuit and multiple light-emitting diode, this AC power feeding mechanism is electrically connected to this current rectifying and wave filtering circuit, this improved light emitting diode drive system is electrically connected to this current rectifying and wave filtering circuit and the plurality of light-emitting diode, and this improved light emitting diode drive system comprises:
Multiple light emitting diode drive device, the plurality of light emitting diode drive device is electrically connected to this current rectifying and wave filtering circuit and the plurality of light-emitting diode, and the plurality of light emitting diode drive device is one another in series; And
One transmission line, this transmission line is electrically connected to this current rectifying and wave filtering circuit and the plurality of light emitting diode drive device,
Wherein this light emitting diode drive device comprises:
Power positive end point, this power positive end point is electrically connected to this current rectifying and wave filtering circuit and this transmission line;
One voltage adjuster, this voltage adjuster is electrically connected to this power positive end point;
One power-end points, this power-end points is electrically connected to this voltage adjuster;
One circuit for generating synchronous signals, this circuit for generating synchronous signals is electrically connected to this voltage adjuster; And
One synchronous control logic circuit, this Synchronization Control logical circuit is electrically connected to this voltage adjuster and this circuit for generating synchronous signals,
Wherein this AC power feeding mechanism transmits an AC power to this current rectifying and wave filtering circuit; This current rectifying and wave filtering circuit to this AC power rectification and filtering to obtain a DC power supply; This current rectifying and wave filtering circuit transmits this DC power supply to this voltage adjuster;
After wherein this voltage adjuster receives this DC power supply, this voltage adjuster produces one first voltage; After this voltage adjuster produces this first voltage, this voltage adjuster transmits the next light emitting diode drive device of this DC power supply to one; After this voltage adjuster produces this first voltage, this voltage adjuster transmits this first voltage to this circuit for generating synchronous signals;
After wherein this circuit for generating synchronous signals receives this first voltage, this circuit for generating synchronous signals produces one second voltage; This first voltage is deducted this second voltage to obtain a synchronizing signal by this circuit for generating synchronous signals; This circuit for generating synchronous signals transmits this synchronizing signal to this Synchronization Control logical circuit; By this synchronizing signal multiple, the plurality of light emitting diode drive device synchronously drives the plurality of light-emitting diode.
Further, wherein this circuit for generating synchronous signals comprises:
Certain voltage generator, this is determined voltage generator and is electrically connected to this voltage adjuster;
One voltage subtraction device, this voltage subtraction device is electrically connected to this voltage adjuster and this determines voltage generator; And
One traffic filter, this traffic filter is electrically connected to this voltage adjuster, this determines voltage generator, this voltage subtraction device and this Synchronization Control logical circuit.
Further, wherein this light emitting diode drive device also comprises:
One variations in light control circuit, this variations in light control circuit is electrically connected to this voltage adjuster and this Synchronization Control logical circuit;
One oscillator, this oscillator is electrically connected to this voltage adjuster, this Synchronization Control logical circuit and this variations in light control circuit;
One drive current control circuit, this drive current control circuit is electrically connected to this voltage adjuster and this variations in light control circuit; And
Multiple drive current output circuit, the plurality of drive current output circuit is electrically connected to this drive current control circuit and the plurality of light-emitting diode.
The present invention also provides a kind of light emitting diode drive device, be applied to an AC power feeding mechanism and a current rectifying and wave filtering circuit, this AC power feeding mechanism is electrically connected to this current rectifying and wave filtering circuit, this light emitting diode drive device is electrically connected to this current rectifying and wave filtering circuit, and this light emitting diode drive device comprises:
Power positive end point, this power positive end point is electrically connected to this current rectifying and wave filtering circuit;
One voltage adjuster, this voltage adjuster is electrically connected to this power positive end point;
One power-end points, this power-end points is electrically connected to this voltage adjuster;
One circuit for generating synchronous signals, this circuit for generating synchronous signals is electrically connected to this voltage adjuster;
One synchronous control logic circuit, this Synchronization Control logical circuit is electrically connected to this voltage adjuster and this circuit for generating synchronous signals; And
At least one light-emitting diode, this light-emitting diode is electrically connected to this Synchronization Control logical circuit,
Wherein multiple light emitting diode drive device is one another in series; This AC power feeding mechanism transmits an AC power to this current rectifying and wave filtering circuit; This current rectifying and wave filtering circuit to this AC power rectification and filtering to obtain a DC power supply; This current rectifying and wave filtering circuit transmits this DC power supply to this voltage adjuster;
After wherein this voltage adjuster receives this DC power supply, this voltage adjuster produces one first voltage; After this voltage adjuster produces this first voltage, this voltage adjuster transmits the next light emitting diode drive device of this DC power supply to one; After this voltage adjuster produces this first voltage, this voltage adjuster transmits this first voltage to this circuit for generating synchronous signals;
After wherein this circuit for generating synchronous signals receives this first voltage, this circuit for generating synchronous signals produces one second voltage; This first voltage is deducted this second voltage to obtain a synchronizing signal by this circuit for generating synchronous signals; This circuit for generating synchronous signals transmits this synchronizing signal to this Synchronization Control logical circuit; By this synchronizing signal multiple, the plurality of light emitting diode drive device synchronously drives this at least one light-emitting diode.
Further, wherein this circuit for generating synchronous signals comprises:
Certain voltage generator, this is determined voltage generator and is electrically connected to this voltage adjuster;
One voltage subtraction device, this voltage subtraction device is electrically connected to this voltage adjuster and this determines voltage generator; And
One traffic filter, this traffic filter is electrically connected to this voltage adjuster, this determines voltage generator, this voltage subtraction device and this Synchronization Control logical circuit.
Further, also comprise:
One variations in light control circuit, this variations in light control circuit is electrically connected to this voltage adjuster and this Synchronization Control logical circuit;
One oscillator, this oscillator is electrically connected to this voltage adjuster, this Synchronization Control logical circuit and this variations in light control circuit;
One drive current control circuit, this drive current control circuit is electrically connected to this voltage adjuster and this variations in light control circuit; And
Multiple drive current output circuit, the plurality of drive current output circuit is electrically connected to this drive current control circuit and this at least one light-emitting diode.
The advantage that the present invention has is:
The invention has the advantages that the transmission line reducing LED drive system is to reduce the cost of LED drive system.
Accompanying drawing explanation
Fig. 1 is improved light emitting diode drive system calcspar of the present invention.
Fig. 2 is circuit for generating synchronous signals calcspar of the present invention.
Fig. 3 is one embodiment of the invention oscillogram (if current rectifying and wave filtering circuit is full-bridge framework).
Fig. 4 is another embodiment of the present invention oscillogram (if current rectifying and wave filtering circuit is half bridge architecture).
Fig. 5 is light emitting diode drive device calcspar of the present invention.
In figure:
10 improved light emitting diode drive systems;
20 current rectifying and wave filtering circuits;
22 AC power;
24 DC power supply;
30 light-emitting diodes;
40 AC power feeding mechanisms;
104 light emitting diode drive devices;
106 transmission lines;
10402 power positive end points;
10404 voltage adjusters;
10406 power-end points;
10408 circuit for generating synchronous signals;
10410 Synchronization Control logical circuits;
10412 variations in light control circuits;
10414 oscillators;
10416 drive current control circuits;
10418 drive current output circuits;
10420 first voltages;
10422 second voltages;
10424 synchronizing signals;
10426 determine voltage generator;
10428 voltage subtraction devices;
10430 traffic filters.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described, can better understand the present invention and can be implemented, but illustrated embodiment is not as a limitation of the invention to make those skilled in the art.
Please refer to Fig. 1, it is a kind of improved light emitting diode drive system calcspar provided by the invention.One modified model LED drive system 10 is applied to AC power feeding mechanism 40, current rectifying and wave filtering circuit 20 and a multiple light-emitting diode 30.This AC power feeding mechanism 40 is electrically connected to this current rectifying and wave filtering circuit 20; This improved light emitting diode drive system 10 is electrically connected to this current rectifying and wave filtering circuit 20 and the plurality of light-emitting diode 30.
This improved light emitting diode drive system 10 comprises multiple light emitting diode drive device 104 and a transmission line 106.The plurality of light emitting diode drive device 104 is electrically connected to this current rectifying and wave filtering circuit 20 and the plurality of light-emitting diode 30; The plurality of light emitting diode drive device 104 is one another in series; This transmission line 106 is electrically connected to this current rectifying and wave filtering circuit 20 and the plurality of light emitting diode drive device 104.
This light emitting diode drive device 104 comprises power positive end point 10402, voltage adjuster 10404, power-end points 10406, circuit for generating synchronous signals 10408, synchronous control logic circuit 10410, variations in light control circuit 10412, oscillator 10414, drive current control circuit 10416 and a multiple drive current output circuit 10418.
This power positive end point 10402 is electrically connected to this current rectifying and wave filtering circuit 20 and this transmission line 106; This voltage adjuster 10404 is electrically connected to this power positive end point 10402; This power-end points 10406 is electrically connected to this voltage adjuster 104004; This circuit for generating synchronous signals 10408 is electrically connected to this voltage adjuster 10404; This Synchronization Control logical circuit 10410 is electrically connected to this voltage adjuster 10404 and this circuit for generating synchronous signals 10408; This variations in light control circuit 10412 is electrically connected to this voltage adjuster 10404 and this Synchronization Control logical circuit 10410.
This oscillator 10414 is electrically connected to this voltage adjuster 10404, this Synchronization Control logical circuit 10410 and this variations in light control circuit 10412; This drive current control circuit 10416 is electrically connected to this voltage adjuster 10404 and this variations in light control circuit 10412; The plurality of drive current output circuit 10418 is electrically connected to this drive current control circuit 10416 and the plurality of light-emitting diode 30.
This AC power feeding mechanism 40 transmits an AC power 22 to this current rectifying and wave filtering circuit 20; This current rectifying and wave filtering circuit 20 to this AC power 22 rectification and filtering to obtain a DC power supply 24; This current rectifying and wave filtering circuit 20 transmits this DC power supply 24 to this voltage adjuster 10404.
After this voltage adjuster 10404 receives this DC power supply 24, this voltage adjuster 10404 produces one first voltage 10420; After this voltage adjuster 10404 produces this first voltage 10420, this voltage adjuster 10404 transmits the next light emitting diode drive device 104 of this DC power supply 24 to one; After this voltage adjuster 10404 produces this first voltage 10420, this voltage adjuster 10404 transmits this first voltage 10420 to this circuit for generating synchronous signals 10408.
After this circuit for generating synchronous signals 10408 receives this first voltage 10420, this circuit for generating synchronous signals 10408 produces one second voltage 10422; This first voltage 10420 is deducted this second voltage 10422 to obtain a synchronizing signal 10424 by this circuit for generating synchronous signals 10408; This circuit for generating synchronous signals 10408 transmits this synchronizing signal 10424 to this Synchronization Control logical circuit 10410; By the plurality of synchronizing signal 10424, the plurality of light emitting diode drive device 104 synchronously drives the plurality of light-emitting diode 30.
This transmission line 106 transports this DC power supply 24, this voltage adjuster 10404 produces this first voltage 10420 by this DC power supply 24, this circuit for generating synchronous signals 10408 produces this second voltage 10422 by this first voltage 10420, and this circuit for generating synchronous signals 10408 produces this synchronizing signal 10424 by this first voltage 10420 and this second voltage 10422.
Therefore, this improved light emitting diode drive system 10 only uses this transmission line 106 to transport this DC power supply 24 and then to produce this synchronizing signal 10424, decreases the transmission line of LED drive system to reduce the cost of LED drive system.
Moreover this Synchronization Control logical circuit 10410 is in order to the control treatment that carries out in some circuit logics and notify this variations in light control circuit 10412; This variations in light control circuit 10412 is in order to determine the variations in light of the plurality of light-emitting diode 30 and to notify this drive current control circuit 10416; This drive current control circuit 10416 of each this light emitting diode drive device 104 controls this drive current output circuit 10418 synchronously to drive the plurality of light-emitting diode 30.Therefore, all the plurality of light-emitting diodes 30 are all synchronously driven.
Moreover if this current rectifying and wave filtering circuit 20 is half bridge architecture, then this improved light emitting diode drive system 10 can save more multiple-transmission-line (if being that a full-bridge framework is made comparisons with this current rectifying and wave filtering circuit 20).This voltage adjuster 10404 can be such as but is not defined as Zener diode.This light-emitting diode 30 can be a chip form and is jointly packaged into single LED light lamp with this light emitting diode drive device 104.
Please refer to Fig. 2, it is circuit for generating synchronous signals calcspar of the present invention.This circuit for generating synchronous signals 10408 comprises certain voltage generator 10426, voltage subtraction device 10428 and a traffic filter 10430.This is determined voltage generator 10426 and is electrically connected to this voltage adjuster 10404; This voltage subtraction device 10428 is electrically connected to this voltage adjuster 10404 and this determines voltage generator 10426; This traffic filter 10430 is electrically connected to this voltage adjuster 10404, this determines voltage generator 10426, this voltage subtraction device 10428 and this Synchronization Control logical circuit 10410.
This voltage adjuster 10404 transmits this first voltage 10420 and determines voltage generator 10426, this voltage subtraction device 10428 and this traffic filter 10430 to this; This determines after voltage generator 10426 receives this first voltage 10420, and this is determined voltage generator 10426 and produces this second voltage 10422; This is determined voltage generator 10426 and transmits this second voltage 10422 to this voltage subtraction device 10428.
After this voltage subtraction device 10428 receives this first voltage 10420 and this second voltage 10422, this first voltage 10420 is deducted this second voltage 10422 to obtain this synchronizing signal 10424 by this voltage subtraction device 10428; This voltage subtraction device 10428 transmits this synchronizing signal 10424 to this traffic filter 10430; The noise of this this synchronizing signal 10424 of traffic filter 10430 filtering; Then, this traffic filter 10430 transmits this synchronizing signal 10424 to this Synchronization Control logical circuit 10410; By the plurality of synchronizing signal 10424, the plurality of light emitting diode drive device 104 synchronously drives the plurality of light-emitting diode 30.
Please refer to Fig. 3, it is one of the present invention embodiment oscillogram (if current rectifying and wave filtering circuit is full-bridge framework); Please refer to Fig. 4, it is another embodiment oscillogram (if current rectifying and wave filtering circuit is half bridge architecture) of the present invention.
After this voltage adjuster 10404 receives this DC power supply 24, this voltage adjuster 10404 produces this first voltage 10420; This determines after voltage generator 10426 receives this first voltage 10420, and this is determined voltage generator 10426 and produces this second voltage 10422; After this voltage subtraction device 10428 receives this first voltage 10420 and this second voltage 10422, this first voltage 10420 is deducted this second voltage 10422 to obtain this synchronizing signal 10424 by this voltage subtraction device 10428.
Please refer to Fig. 5, it is light emitting diode drive device calcspar of the present invention.Assembly shown in Fig. 5 describes similar to Fig. 1 ~ Fig. 4, is succinct factor, repeats no more in this.Moreover this light emitting diode drive device 104 also comprises at least one light-emitting diode 30; This light-emitting diode 30 is electrically connected to this Synchronization Control logical circuit 10410.
The invention has the advantages that the transmission line reducing LED drive system is to reduce the cost of LED drive system.
The above embodiment is only that protection scope of the present invention is not limited thereto in order to absolutely prove the preferred embodiment that the present invention lifts.The equivalent alternative or conversion that those skilled in the art do on basis of the present invention, all within protection scope of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (6)
1. an improved light emitting diode drive system, be applied to an AC power feeding mechanism, a current rectifying and wave filtering circuit and multiple light-emitting diode, it is characterized in that, this AC power feeding mechanism is electrically connected to this current rectifying and wave filtering circuit, this improved light emitting diode drive system is electrically connected to this current rectifying and wave filtering circuit and the plurality of light-emitting diode, and this improved light emitting diode drive system comprises:
Multiple light emitting diode drive device, the plurality of light emitting diode drive device is electrically connected to this current rectifying and wave filtering circuit and the plurality of light-emitting diode, and the plurality of light emitting diode drive device is one another in series; And
One transmission line, this transmission line is electrically connected to this current rectifying and wave filtering circuit and the plurality of light emitting diode drive device,
Wherein this light emitting diode drive device comprises:
Power positive end point, this power positive end point is electrically connected to this current rectifying and wave filtering circuit and this transmission line;
One voltage adjuster, this voltage adjuster is electrically connected to this power positive end point;
One power-end points, this power-end points is electrically connected to this voltage adjuster;
One circuit for generating synchronous signals, this circuit for generating synchronous signals is electrically connected to this voltage adjuster; And
One synchronous control logic circuit, this Synchronization Control logical circuit is electrically connected to this voltage adjuster and this circuit for generating synchronous signals,
Wherein this AC power feeding mechanism transmits an AC power to this current rectifying and wave filtering circuit; This current rectifying and wave filtering circuit to this AC power rectification and filtering to obtain a DC power supply; This current rectifying and wave filtering circuit transmits this DC power supply to this voltage adjuster;
After wherein this voltage adjuster receives this DC power supply, this voltage adjuster produces one first voltage; After this voltage adjuster produces this first voltage, this voltage adjuster transmits the next light emitting diode drive device of this DC power supply to one; After this voltage adjuster produces this first voltage, this voltage adjuster transmits this first voltage to this circuit for generating synchronous signals;
After wherein this circuit for generating synchronous signals receives this first voltage, this circuit for generating synchronous signals produces one second voltage; This first voltage is deducted this second voltage to obtain a synchronizing signal by this circuit for generating synchronous signals; This circuit for generating synchronous signals transmits this synchronizing signal to this Synchronization Control logical circuit; By this synchronizing signal multiple, the plurality of light emitting diode drive device synchronously drives the plurality of light-emitting diode.
2. improved light emitting diode drive system according to claim 1, is characterized in that, wherein this circuit for generating synchronous signals comprises:
Certain voltage generator, this is determined voltage generator and is electrically connected to this voltage adjuster;
One voltage subtraction device, this voltage subtraction device is electrically connected to this voltage adjuster and this determines voltage generator; And
One traffic filter, this traffic filter is electrically connected to this voltage adjuster, this determines voltage generator, this voltage subtraction device and this Synchronization Control logical circuit.
3. improved light emitting diode drive system according to claim 2, is characterized in that, wherein this light emitting diode drive device also comprises:
One variations in light control circuit, this variations in light control circuit is electrically connected to this voltage adjuster and this Synchronization Control logical circuit;
One oscillator, this oscillator is electrically connected to this voltage adjuster, this Synchronization Control logical circuit and this variations in light control circuit;
One drive current control circuit, this drive current control circuit is electrically connected to this voltage adjuster and this variations in light control circuit; And
Multiple drive current output circuit, the plurality of drive current output circuit is electrically connected to this drive current control circuit and the plurality of light-emitting diode.
4. a light emitting diode drive device, be applied to an AC power feeding mechanism and a current rectifying and wave filtering circuit, it is characterized in that, this AC power feeding mechanism is electrically connected to this current rectifying and wave filtering circuit, this light emitting diode drive device is electrically connected to this current rectifying and wave filtering circuit, and this light emitting diode drive device comprises:
Power positive end point, this power positive end point is electrically connected to this current rectifying and wave filtering circuit;
One voltage adjuster, this voltage adjuster is electrically connected to this power positive end point;
One power-end points, this power-end points is electrically connected to this voltage adjuster;
One circuit for generating synchronous signals, this circuit for generating synchronous signals is electrically connected to this voltage adjuster;
One synchronous control logic circuit, this Synchronization Control logical circuit is electrically connected to this voltage adjuster and this circuit for generating synchronous signals; And
At least one light-emitting diode, this light-emitting diode is electrically connected to this Synchronization Control logical circuit,
Wherein multiple light emitting diode drive device is one another in series; This AC power feeding mechanism transmits an AC power to this current rectifying and wave filtering circuit; This current rectifying and wave filtering circuit to this AC power rectification and filtering to obtain a DC power supply; This current rectifying and wave filtering circuit transmits this DC power supply to this voltage adjuster;
After wherein this voltage adjuster receives this DC power supply, this voltage adjuster produces one first voltage; After this voltage adjuster produces this first voltage, this voltage adjuster transmits the next light emitting diode drive device of this DC power supply to one; After this voltage adjuster produces this first voltage, this voltage adjuster transmits this first voltage to this circuit for generating synchronous signals;
After wherein this circuit for generating synchronous signals receives this first voltage, this circuit for generating synchronous signals produces one second voltage; This first voltage is deducted this second voltage to obtain a synchronizing signal by this circuit for generating synchronous signals; This circuit for generating synchronous signals transmits this synchronizing signal to this Synchronization Control logical circuit; By this synchronizing signal multiple, the plurality of light emitting diode drive device synchronously drives this at least one light-emitting diode.
5. light emitting diode drive device according to claim 4, is characterized in that, wherein this circuit for generating synchronous signals comprises:
Certain voltage generator, this is determined voltage generator and is electrically connected to this voltage adjuster;
One voltage subtraction device, this voltage subtraction device is electrically connected to this voltage adjuster and this determines voltage generator; And
One traffic filter, this traffic filter is electrically connected to this voltage adjuster, this determines voltage generator, this voltage subtraction device and this Synchronization Control logical circuit.
6. light emitting diode drive device according to claim 5, is characterized in that, also comprises:
One variations in light control circuit, this variations in light control circuit is electrically connected to this voltage adjuster and this Synchronization Control logical circuit;
One oscillator, this oscillator is electrically connected to this voltage adjuster, this Synchronization Control logical circuit and this variations in light control circuit;
One drive current control circuit, this drive current control circuit is electrically connected to this voltage adjuster and this variations in light control circuit; And
Multiple drive current output circuit, the plurality of drive current output circuit is electrically connected to this drive current control circuit and this at least one light-emitting diode.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410281364.1A CN105282903B (en) | 2014-06-23 | 2014-06-23 | Improved light emitting diode drive system and light emitting diode drive device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410281364.1A CN105282903B (en) | 2014-06-23 | 2014-06-23 | Improved light emitting diode drive system and light emitting diode drive device |
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| CN105282903A true CN105282903A (en) | 2016-01-27 |
| CN105282903B CN105282903B (en) | 2017-10-03 |
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| CN201919200U (en) * | 2010-11-01 | 2011-08-03 | 矽诚科技股份有限公司 | Driving device for LED (light-emitting diode) curtain lamp |
| US20130169165A1 (en) * | 2011-12-15 | 2013-07-04 | Laurence P. Sadwick | Multi-Phase Lighting Driver |
| WO2013165126A1 (en) * | 2012-04-30 | 2013-11-07 | Min Jun Jang | Energy saving lighting system |
| US20130313973A1 (en) * | 2012-05-22 | 2013-11-28 | Texas Instruments Incorporated | Led bypass and control circuit for fault tolerant led systems |
| CN203590543U (en) * | 2013-10-30 | 2014-05-07 | 矽诚科技股份有限公司 | Light emitting diode control circuit and packaging structure and system thereof |
| CN203968460U (en) * | 2014-06-23 | 2014-11-26 | 矽诚科技股份有限公司 | Improved light emitting diode drive system and light emitting diode drive device |
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| CN201919200U (en) * | 2010-11-01 | 2011-08-03 | 矽诚科技股份有限公司 | Driving device for LED (light-emitting diode) curtain lamp |
| US20130169165A1 (en) * | 2011-12-15 | 2013-07-04 | Laurence P. Sadwick | Multi-Phase Lighting Driver |
| WO2013165126A1 (en) * | 2012-04-30 | 2013-11-07 | Min Jun Jang | Energy saving lighting system |
| US20130313973A1 (en) * | 2012-05-22 | 2013-11-28 | Texas Instruments Incorporated | Led bypass and control circuit for fault tolerant led systems |
| CN203590543U (en) * | 2013-10-30 | 2014-05-07 | 矽诚科技股份有限公司 | Light emitting diode control circuit and packaging structure and system thereof |
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| CN105282903B (en) | 2017-10-03 |
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