CN105916246A - White light LED oscillation-type high-efficiency driving system - Google Patents
White light LED oscillation-type high-efficiency driving system Download PDFInfo
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- CN105916246A CN105916246A CN201610380037.0A CN201610380037A CN105916246A CN 105916246 A CN105916246 A CN 105916246A CN 201610380037 A CN201610380037 A CN 201610380037A CN 105916246 A CN105916246 A CN 105916246A
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- field effect
- electric capacity
- effect transistor
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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]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
Abstract
The invention discloses a white light LED oscillation-type high-efficiency driving system which is characterized in that the white light LED oscillation-type high-efficiency driving system is mainly composed of a transformer T, a power supply circuit, a micro-processing circuit serially connected with an original edge inductance coil L1 of the transformer T and the power supply circuit, a symmetrical oscillation circuit connected with the power supply circuit, and a high-efficiency step-down driving circuit connected with the symmetrical oscillation circuit and the micro-processing circuit. The driving efficiency of the high-efficiency step-down driving circuit is high, and the electric energy consumption is very low, which is only 2/3 of that of a conventional LED driving system. According to the invention, the micro-processing circuit provides a stable work voltage to the high-efficiency step-down driving circuit, and the stability of the white light LED oscillation-type high-efficiency driving system is improved. The symmetrical oscillation circuit provides a starting signal to the high-efficiency step-down driving circuit, the starting speed of the high-efficiency step-down driving circuit is increased, and the reaction of the white light LED oscillation-type high-efficiency driving system is more sensitive.
Description
Technical field
The present invention relates to a kind of LED drive system, specifically refer to a kind of white light LEDs oscillatory type high efficiency drive system
System.
Background technology
At present, due to LED have that energy consumption is low, the feature such as length in service life and safety and environmental protection, it is
Become one of main product of people's life lighting.Owing to LED is different from traditional electric filament lamp, therefore
Its needs are driven by special drive circuit.But, current people are widely used LED drive circuit
Due to the irrationality of its design structure, result in current LED drive circuit, to there is drive efficiency low, energy consumption
More high defect.
Summary of the invention
It is an object of the invention to overcome traditional LED drive circuit to there is drive efficiency low, energy consumption is higher
Defect, it is provided that a kind of white light LEDs oscillatory type high efficiency drive system.
The purpose of the present invention is achieved through the following technical solutions: a kind of white light LEDs oscillatory type high efficiency drive system,
Mainly by transformator T, power-supplying circuit, the former limit inductance coil L1 and the power supply that are serially connected in transformator T supply
Electricity circuit between micro-processor interface circuit, the symmetrical expression oscillating circuit being connected with power-supplying circuit, respectively with
The efficient voltage-dropping type drive circuit that symmetrical expression oscillating circuit is connected with micro-processor interface circuit, and with transformator T
Secondary inductance coil L3 be connected secondary output circuit composition；Described efficient voltage-dropping type drive circuit also with
The former limit inductance coil L2 of transformator T is connected.
Further, described symmetrical expression oscillating circuit is imitated by field effect transistor MOS1, field effect transistor MOS2, field
Should pipe MOS3, field effect transistor MOS4, audion VT2, audion VT3, be serially connected in audion VT2
Base stage and the grid of field effect transistor MOS3 between resistance R9, the source electrode of negative pole and field effect transistor MOS1
Be connected, electric capacity C10, N pole that positive pole is connected with the grid of field effect transistor MOS1 after resistance R10
Be connected with the grid of field effect transistor MOS1, P pole is then connected with the source electrode of field effect transistor MOS1 two
Pole pipe D8, N pole is connected with the positive pole of electric capacity C10, P pole is then connected with the drain electrode of field effect transistor MOS1
Diode D6, the N pole connect grid with field effect transistor MOS2 after resistance R14 is connected, P pole then with
Diode D7, the P pole that the P pole of diode D6 is connected is connected with the source electrode of field effect transistor MOS2,
The diode D9 that N pole is connected with the grid of field effect transistor MOS2, the N pole phase of negative pole and diode D7
Connect, electric capacity C11 that positive pole is sequentially connected through resistance R12 negative pole with electric capacity C10 after resistance R11,
P pole is connected with the grid of field effect transistor MOS4, N pole then base stage with audion VT3 is connected two
Pole pipe D10, and the resistance R13 composition being in parallel with diode D10；The transmitting of described audion VT2
Pole is connected with the grid of field effect transistor MOS1, its grounded collector, its base stage then with power-supplying circuit
It is connected；The drain electrode of described field effect transistor MOS3 is connected with the source electrode of field effect transistor MOS1, its source electrode
Ground connection while being then connected with the source electrode of field effect transistor MOS4；The drain electrode of described field effect transistor MOS2 with
The drain electrode of field effect transistor MOS1 is connected, its source electrode is then connected with the drain electrode of field effect transistor MOS4, it
Grid then emitter stage with audion VT3 is connected；The grounded collector of described audion VT3, its base stage
Then it is connected with efficient voltage-dropping type drive circuit.
Described power-supplying circuit is by diode rectifier U1, and positive pole is defeated with the one of diode rectifier U1
Enter end be connected, electric capacity C1 that negative pole is then connected with another input of diode rectifier U1, one
End is connected with diode rectifier U1 input, the other end then another with diode rectifier U1
One input is collectively forming fuse FU, the N pole of the input of this power-supplying circuit after electric capacity C2
Be connected with the cathode output end of diode rectifier U1, P pole then defeated with the positive pole of diode rectifier U1
Go out the diode D1 of ground connection while end is connected, and positive pole after diode D2 with diode rectifier
The electricity that the cathode output end of U1 is connected, negative pole then cathode output end with diode rectifier U1 is connected
Hold C3 composition；The positive pole of described electric capacity C3 is also connected with micro-processor interface circuit, its negative pole then with audion VT2
Base stage be connected；The negative pole of described diode rectifier U1 is also connected with micro-processor interface circuit.
Described micro-processor interface circuit is connected with efficient voltage-dropping type drive circuit by N pole, P pole is then after resistance R1
The diode D3 being connected with the cathode output end of diode rectifier U1, and positive pole and diode rectification
The electric capacity C4 composition that the cathode output end of device U1 is connected, negative pole then positive pole with electric capacity C3 is connected；
The Same Name of Ends of the former limit inductance coil L1 of described transformator T is connected with the positive pole of electric capacity C4, it is non-of the same name
End then positive pole with electric capacity C3 is connected；The Same Name of Ends and two of the former limit inductance coil L2 of described transformator T
The N pole of pole pipe D3 is connected, its non-same polarity ground connection.
Described efficient voltage-dropping type drive circuit by driving chip U2, audion VT1, field effect transistor MOS,
Negative pole is connected with the GND pin of driving chip U2, positive pole sequentially after resistance R2 and resistance R3 with three
Electric capacity C6, the P pole that the base stage of pole pipe VT1 is connected is connected with the base stage of audion VT3, N pole then warp
The diode D4 being connected with the CTRL pin of driving chip U2 after electric capacity C5, negative pole and field effect transistor
The electric capacity C7 that the source electrode of MOS is connected, positive pole is connected with the N pole of diode D3 after resistance R5,
And the resistance R4 composition being serially connected between the positive pole of electric capacity C7 and the colelctor electrode of audion VT1；Described three
The emitter stage of pole pipe VT1 is connected with the N pole of diode D3, its colelctor electrode is then with driving chip U2's
SET pin is connected；The VIN pin of described driving chip U2 and resistance R2 and the junction point of resistance R3
Be connected, its GND pin ground connection, its SW pin are then connected with the grid of field effect transistor MOS；Institute
State the grounded drain of field effect transistor MOS.
Described secondary output circuit by Zener diode D5, positive pole after resistance R6 with the secondary of transformator T
The electric capacity that the non-same polarity of inductance coil L3 is connected, negative pole is then connected with the N pole of Zener diode D5
C8；Positive pole is connected with the N pole of Zener diode D5, negative pole then after resistance R7 with the pair of transformator T
The electric capacity C9 that the Same Name of Ends of limit inductance coil L3 is connected, and the resistance R8 group being in parallel with electric capacity C9
Become；The P pole of described Zener diode D5 is connected with the non-same polarity of the secondary inductance coil L3 of transformator T
Connect, its N pole then negative pole with electric capacity C9 is collectively forming the outfan of this secondary output circuit.
Described driving chip U2 is the integrated chip of AL8807A.
The present invention compared with the prior art, has the following advantages and beneficial effect:
(1) drive efficiency of the efficient voltage-dropping type drive circuit of the present invention is high, and its electric energy loss is the lowest,
It is only the 2/3 of tradition LED drive system.
(2) present invention provides stable running voltage to efficient voltage-dropping type drive circuit by micro-processor interface circuit,
Improve the stability of the present invention.
(3) present invention provides enabling signal to efficient voltage-dropping type drive circuit by symmetrical expression oscillating circuit, can
To improve the toggle speed of efficient voltage-dropping type drive circuit, so that present invention reaction is sensitiveer.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention.
Fig. 2 is the symmetrical expression oscillating circuit structural representation of the present invention.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not
It is limited to this.
Embodiment
As it is shown in figure 1, the white light LEDs oscillatory type high efficiency drive system of the present invention, mainly by transformator T,
Power-supplying circuit, micro-processor interface circuit, symmetrical expression oscillating circuit, efficient voltage-dropping type drive circuit and secondary
Output circuit six part forms.
As it is shown in figure 1, this micro-processor interface circuit is serially connected in the former limit inductance coil L1 of transformator T and power supply is powered
Between circuit.Symmetrical expression oscillating circuit is connected with power-supplying circuit.Efficiently voltage-dropping type drive circuit then divides
It is not connected with symmetrical expression oscillating circuit and micro-processor interface circuit.Secondary output circuit is electric with the secondary of transformator T
Sense coil L3 is connected.Described efficient voltage-dropping type drive circuit also with the former limit inductance coil of transformator T
L2 is connected.
Described power-supplying circuit is by diode rectifier U1, electric capacity C1, electric capacity C2, electric capacity C3, two poles
Pipe D1, diode D2 and fuse FU form.During connection, one end of fuse FU is whole with diode
One input of stream device U1 is connected, its other end then with another input of diode rectifier U1
It is collectively forming the input of this power-supplying circuit and connects 220V civil power, if civil power occurs due to instability
Overvoltage, this fuse FU is then blown, thus protects subsequent conditioning circuit not damaged by high voltage.Electric capacity C1
Positive pole is connected with an input of diode rectifier U1, its negative pole is then with diode rectifier U1's
Another input is connected.The N pole of diode D1 is connected with the negative pole of electric capacity C2, its P pole then with
The cathode output end of diode rectifier U1 be connected while ground connection.The positive pole of this electric capacity C2 then with two poles
The cathode output end of pipe commutator U1 is connected.
Meanwhile, the positive pole of this electric capacity C3 is connected with the P pole of diode D2, and its negative pole is then whole with diode
The cathode output end of stream device U1 is connected.The N pole of described diode D2 is then with diode rectifier U1's
Cathode output end is connected.This diode rectifier U1 is converted to unidirectional current electric main, and electric capacity C2
Then form the first filter circuit, diode D2 and electric capacity C3 with diode D1 and then form the second filter circuit,
Unidirectional current after the effect of two filter circuits can make conversion more smoothes out.For the direct current smooth-going
Electricity is supplied to subsequent conditioning circuit, and the positive pole of described electric capacity C3 is also connected with micro-processor interface circuit, its negative pole is then with right
Title formula oscillating circuit is connected；The negative pole of described diode rectifier U1 is also connected with micro-processor interface circuit.
Described micro-processor interface circuit can provide stable with the electromagnetic interference occurred in filtration system for subsequent conditioning circuit
Working power, it is made up of diode D3, resistance R1 and electric capacity C4.Wherein, the N of diode D3
Pole is connected with efficient voltage-dropping type drive circuit, its P pole then after resistance R1 with diode rectifier U1's
Cathode output end is connected.The positive pole of electric capacity C4 is connected with the cathode output end of diode rectifier U1,
Its negative pole then positive pole with electric capacity C3 is connected.The Same Name of Ends of the former limit inductance coil L1 of described transformator T
Be connected with the positive pole of electric capacity C4, its non-same polarity then positive pole with electric capacity C3 is connected.Described transformator
The former Same Name of Ends of limit inductance coil L2 of T is connected with the N pole of diode D3, its non-same polarity ground connection.
This symmetrical expression oscillating circuit provides enabling signal, its structure such as Fig. 2 can to efficient voltage-dropping type drive circuit
Shown in, it is by field effect transistor MOS1, field effect transistor MOS2, field effect transistor MOS3, field effect transistor MOS4,
Audion VT2, audion VT3, resistance R9, resistance R10, resistance R11, resistance R12, resistance R13,
Resistance R14, electric capacity C10, electric capacity C11, diode D8, diode D6, diode D7, diode
D9 and diode D10 composition.
During connection, resistance R9 is serially connected between base stage and the grid of field effect transistor MOS3 of audion VT2.
The negative pole of electric capacity C10 is connected with the source electrode of field effect transistor MOS1, its positive pole is imitated with field after resistance R10
Should the grid of pipe MOS1 be connected.The N pole of diode D8 is connected with the grid of field effect transistor MOS1,
Its P pole is then connected with the source electrode of field effect transistor MOS1.The N pole of diode D6 is with electric capacity C10 just
Pole is connected, its P pole is then connected with the drain electrode of field effect transistor MOS1.The N pole of diode D7 is through electricity
Be connected with the grid of field effect transistor MOS2 after resistance R14, its P pole then P with diode D6 is extremely connected
Connect.The P pole of diode D9 is connected with the source electrode of field effect transistor MOS2, its N pole and field effect transistor MOS2
Grid be connected.The negative pole of electric capacity C11 is connected with the N pole of diode D7, its positive pole is sequentially through electricity
It is connected with the negative pole of electric capacity C10 after resistance R12 and resistance R11.The P pole of diode D10 and field effect transistor
The grid of MOS4 is connected, its N pole then base stage with audion VT3 is connected.Resistance R13 and two poles
Pipe D10 is in parallel.
Meanwhile, the described emitter stage of audion VT2 be connected with the grid of field effect transistor MOS1, its current collection
Pole ground connection, its base stage then negative pole with electric capacity C3 is connected.The drain electrode of described field effect transistor MOS3 is imitated with field
Should the source electrode of pipe MOS1 be connected, its source electrode connects while being then connected with the source electrode of field effect transistor MOS4
Ground.The drain electrode of described field effect transistor MOS2 is connected with the drain electrode of field effect transistor MOS1, its source electrode then with
The drain electrode of field effect transistor MOS4 is connected, its grid then emitter stage with audion VT3 is connected.Described
The grounded collector of audion VT3, its base stage are then connected with efficient voltage-dropping type drive circuit.
Described efficient voltage-dropping type drive circuit by driving chip U2, audion VT1, field effect transistor MOS,
Resistance R2, resistance R3, resistance R4, resistance R5, diode D4, electric capacity C5, electric capacity C6 and electricity
Hold C7 composition.
During connection, the negative pole of electric capacity C6 is connected with the GND pin of driving chip U2, its positive pole sequentially
It is connected through resistance R2 base stage with audion VT1 after resistance R3.The P pole of diode D4 and three poles
The base stage of pipe VT3 is connected, its N pole then positive pole with electric capacity C5 is connected.The negative pole of described electric capacity C5
It is connected with the CTRL pin of driving chip U2.The negative pole of electric capacity C7 and the source electrode of field effect transistor MOS
Be connected, its positive pole N pole with diode D3 after resistance R5 is connected.Resistance R4 is serially connected in electric capacity
Between positive pole and the colelctor electrode of audion VT1 of C7.Electric capacity C7, resistance R5 and field effect transistor MOS
Forming an on-off circuit, it is controlled by the SW pin of driving chip U2.
The emitter stage of described audion VT1 is connected with the N pole of diode D3, its colelctor electrode then with driving
The SET pin of chip U2 is connected.The VIN pin of described driving chip U2 and resistance R2 and resistance
The junction point of R3 is connected, its GND pin ground connection, its SW pin then with the grid of field effect transistor MOS
It is connected；The grounded drain of described field effect transistor MOS.In order to preferably implement the present invention, described driving core
The integrated chip of the preferred AL8807A of sheet U2 realizes.This transformator T carries out transformation to unidirectional current, to meet
The work requirements of LED.
Described secondary output circuit is by Zener diode D5, resistance R6, resistance R7, resistance R8, electric capacity
C8 and electric capacity C9 composition.Wherein, this electric capacity C9 and resistance R8 forms RC filter circuit, this electric capacity
The positive pole of C9 is connected with the N pole of Zener diode D5, its negative pole then after resistance R7 with transformator T
The Same Name of Ends of secondary inductance coil L3 be connected；Resistance R8 is in parallel with electric capacity C9.This RC filtered electrical
Road can filter out the interference signal that system self produces, and makes LED operation more stable.
The positive pole of this electric capacity C8 after resistance R6 with the non-same polarity of the secondary inductance coil L3 of transformator T
Be connected, its negative pole is then connected with the N pole of Zener diode D5.The P pole of described Zener diode D5
Be connected with the non-same polarity of the secondary inductance coil L3 of transformator T, its N pole then with the negative pole of electric capacity C9
It is collectively forming the outfan of this secondary output circuit, the output termination LED of this secondary output circuit.
As it has been described above, just can well realize the present invention.
Claims (7)
1. a white light LEDs oscillatory type high efficiency drive system, it is characterised in that mainly by transformator T, electricity
Source power supply circuits, are serially connected in the micro-process between former limit inductance coil L1 and the power-supplying circuit of transformator T
Circuit, the symmetrical expression oscillating circuit being connected with power-supplying circuit, respectively with symmetrical expression oscillating circuit and micro-
Process the efficient voltage-dropping type drive circuit that is connected of circuit, and with the secondary inductance coil L3 phase of transformator T
The secondary output circuit composition connected；Described efficient voltage-dropping type drive circuit also with the former limit inductance of transformator T
Coil L2 is connected.
A kind of white light LEDs oscillatory type high efficiency drive system the most according to claim 1, its feature exists
In: described symmetrical expression oscillating circuit by field effect transistor MOS1, field effect transistor MOS2, field effect transistor MOS3,
Field effect transistor MOS4, audion VT2, audion VT3, it is serially connected in base stage and the field effect of audion VT2
Should resistance R9 between the grid of pipe MOS3, negative pole is connected with the source electrode of field effect transistor MOS1, positive pole
Electric capacity C10, the N pole being connected with the grid of field effect transistor MOS1 after resistance R10 and field effect transistor
The diode D8, N that the grid of MOS1 is connected, P pole is then connected with the source electrode of field effect transistor MOS1
The diode that pole is connected with the positive pole of electric capacity C10, P pole is then connected with the drain electrode of field effect transistor MOS1
D6, N pole grid with field effect transistor MOS2 after resistance R14 is connected, P pole then with diode D6
Diode D7, the P pole that is connected, P pole be connected with the source electrode of field effect transistor MOS2, N pole is imitated with field
Should the diode D9 that is connected of the grid of pipe MOS2, negative pole is connected with the N pole of diode D7, positive pole
Sequentially through electric capacity C11, P pole that resistance R12 negative pole with electric capacity C10 after resistance R11 is connected and field
The diode D10 that the grid of effect pipe MOS4 is connected, N pole then base stage with audion VT3 is connected,
And the resistance R13 composition being in parallel with diode D10；The emitter stage of described audion VT2 and field effect
The grid of pipe MOS1 is connected, its grounded collector, its base stage are then connected with power-supplying circuit；Institute
The source electrode of the drain electrode and field effect transistor MOS1 of stating field effect transistor MOS3 is connected, its source electrode then with field effect
The source electrode of pipe MOS4 be connected while ground connection；The drain electrode of described field effect transistor MOS2 and field effect transistor
The drain electrode of MOS1 is connected, its source electrode is then connected with the drain electrode of field effect transistor MOS4, its grid then with
The emitter stage of audion VT3 is connected；The grounded collector of described audion VT3, its base stage then with efficiently
Voltage-dropping type drive circuit is connected.
A kind of white light LEDs oscillatory type high efficiency drive system the most according to claim 2, its feature exists
In: described power-supplying circuit is by diode rectifier U1, and positive pole is defeated with the one of diode rectifier U1
Enter end be connected, electric capacity C1 that negative pole is then connected with another input of diode rectifier U1, one
End is connected with diode rectifier U1 input, the other end then another with diode rectifier U1
One input is collectively forming fuse FU, the N pole of the input of this power-supplying circuit after electric capacity C2
Be connected with the cathode output end of diode rectifier U1, P pole then defeated with the positive pole of diode rectifier U1
Go out the diode D1 of ground connection while end is connected, and positive pole after diode D2 with diode rectifier
The electricity that the cathode output end of U1 is connected, negative pole then cathode output end with diode rectifier U1 is connected
Hold C3 composition；The positive pole of described electric capacity C3 is also connected with micro-processor interface circuit, its negative pole then with audion VT2
Base stage be connected；The negative pole of described diode rectifier U1 is also connected with micro-processor interface circuit.
A kind of white light LEDs oscillatory type high efficiency drive system the most according to claim 3, its feature exists
In: described micro-processor interface circuit is connected with efficient voltage-dropping type drive circuit by N pole, P pole is then after resistance R1
The diode D3 being connected with the cathode output end of diode rectifier U1, and positive pole and diode rectification
The electric capacity C4 composition that the cathode output end of device U1 is connected, negative pole then positive pole with electric capacity C3 is connected；
The Same Name of Ends of the former limit inductance coil L1 of described transformator T is connected with the positive pole of electric capacity C4, it is non-of the same name
End then positive pole with electric capacity C3 is connected；The Same Name of Ends and two of the former limit inductance coil L2 of described transformator T
The N pole of pole pipe D3 is connected, its non-same polarity ground connection.
A kind of white light LEDs oscillatory type high efficiency drive system the most according to claim 4, its feature exists
In: described efficient voltage-dropping type drive circuit by driving chip U2, audion VT1, field effect transistor MOS,
Negative pole is connected with the GND pin of driving chip U2, positive pole sequentially after resistance R2 and resistance R3 with three
Electric capacity C6, the P pole that the base stage of pole pipe VT1 is connected is connected with the base stage of audion VT3, N pole then warp
The diode D4 being connected with the CTRL pin of driving chip U2 after electric capacity C5, negative pole and field effect transistor
The electric capacity C7 that the source electrode of MOS is connected, positive pole is connected with the N pole of diode D3 after resistance R5,
And the resistance R4 composition being serially connected between the positive pole of electric capacity C7 and the colelctor electrode of audion VT1；Described three
The emitter stage of pole pipe VT1 is connected with the N pole of diode D3, its colelctor electrode is then with driving chip U2's
SET pin is connected；The VIN pin of described driving chip U2 and resistance R2 and the junction point of resistance R3
Be connected, its GND pin ground connection, its SW pin are then connected with the grid of field effect transistor MOS；Institute
State the grounded drain of field effect transistor MOS.
A kind of white light LEDs oscillatory type high efficiency drive system the most according to claim 5, its feature exists
In: described secondary output circuit by Zener diode D5, positive pole after resistance R6 with the secondary of transformator T
The electric capacity that the non-same polarity of inductance coil L3 is connected, negative pole is then connected with the N pole of Zener diode D5
C8；Positive pole is connected with the N pole of Zener diode D5, negative pole then after resistance R7 with the pair of transformator T
The electric capacity C9 that the Same Name of Ends of limit inductance coil L3 is connected, and the resistance R8 group being in parallel with electric capacity C9
Become；The P pole of described Zener diode D5 is connected with the non-same polarity of the secondary inductance coil L3 of transformator T
Connect, its N pole then negative pole with electric capacity C9 is collectively forming the outfan of this secondary output circuit.
A kind of white light LEDs oscillatory type high efficiency drive system the most according to claim 6, its feature exists
In: described driving chip U2 is the integrated chip of AL8807A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610380037.0A CN105916246A (en) | 2016-05-30 | 2016-05-30 | White light LED oscillation-type high-efficiency driving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610380037.0A CN105916246A (en) | 2016-05-30 | 2016-05-30 | White light LED oscillation-type high-efficiency driving system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105916246A true CN105916246A (en) | 2016-08-31 |
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ID=56742815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610380037.0A Pending CN105916246A (en) | 2016-05-30 | 2016-05-30 | White light LED oscillation-type high-efficiency driving system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106376139A (en) * | 2016-11-02 | 2017-02-01 | 东莞市石龙富华电子有限公司 | Method and switch for performing soft switching on high-power LED power supply with low stand-by power consumption |
-
2016
- 2016-05-30 CN CN201610380037.0A patent/CN105916246A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106376139A (en) * | 2016-11-02 | 2017-02-01 | 东莞市石龙富华电子有限公司 | Method and switch for performing soft switching on high-power LED power supply with low stand-by power consumption |
| CN106376139B (en) * | 2016-11-02 | 2017-12-19 | 东莞市石龙富华电子有限公司 | A kind of method and circuit of great power LED power supply low standby power loss Sofe Switch machine |
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