CN106028543A - Overvoltage protective LED energy-saving driving system based on power amplification circuit - Google Patents
Overvoltage protective LED energy-saving driving system based on power amplification circuit Download PDFInfo
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- CN106028543A CN106028543A CN201610523013.6A CN201610523013A CN106028543A CN 106028543 A CN106028543 A CN 106028543A CN 201610523013 A CN201610523013 A CN 201610523013A CN 106028543 A CN106028543 A CN 106028543A
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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]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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Abstract
The invention discloses an overvoltage protective LED energy-saving driving system based on a power amplification circuit. The overvoltage protective LED energy-saving driving system is characterized by manly consisting of a transformer T, a control chip U2, a power supply circuit and a frequency adjustment circuit which are connected with the control chip U2, a diode D4 which has a P pole connected with the frequency adjustment circuit and an N pole connected with a VS pin of the control chip U2, and the like. The system, by use of a GR6953 integrated chip as the control chip and through combination with a peripheral circuit, forms a half-bridge control structure, such that starting power consumption is reduced, and the system is more energy-saving. Large power can be output, and demands of multiple LEDs for simultaneous work are satisfied. At the same time, the circuit can be automatically disconnected in case of overvoltages, the system itself and the LEDs are prevented from damage caused by the overvoltages.
Description
Technical field
The present invention relates to a kind of drive system, specifically refer to a kind of overpressure-proof type based on power amplification circuit
LED energy-saving driving 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, become
One of main product for people's life lighting.Along with improving constantly of people's awareness of saving energy, people are to LED
The horsepower requirements of drive system is more and more higher, and this brings new challenge to LED drive system.But,
Traditional LED drive system power consumption on startup is the biggest, it is impossible to meet the energy saving requirement of people.
Summary of the invention
It is an object of the invention to solve the defect that current LED drive system power consumption on startup is bigger,
A kind of overpressure-proof type LED energy-saving driving system based on power amplification circuit is provided.
The purpose of the present invention is by following technical proposals reality: a kind of overvoltage protection based on power amplification circuit
Type LED energy-saving driving system, mainly by control chip U2, transformator T, respectively with control chip U2 phase
The power circuit connected and frequency adjustment circuit, P pole is connected with frequency adjustment circuit, N pole and control chip
The diode D4 that the VS pin of U2 is connected, positive pole is connected with the SGND pin of control chip U2,
The electric capacity C3 that negative pole is connected with frequency adjustment circuit, one end is connected with the PGND pin of control chip U2
Connect, the other end be connected with frequency adjustment circuit while the resistance R3 of ground connection, with the VS of control chip U2
The gate driver circuit that pin is connected, the overvoltage protection being serially connected between power circuit and frequency adjustment circuit
Circuit, the power between the non-same polarity of the secondary inductance coil being serially connected in gate driver circuit and transformator T
Amplifying circuit, and positive pole is connected with the Same Name of Ends of the former limit inductance coil of transformator T, negative pole and transformation
The non-same polarity of the former limit inductance coil of device T be connected while ground connection electric capacity C6 composition；Described transformation
The Same Name of Ends of the former limit inductance coil of device T is connected with power circuit.
Further, described overvoltage crowbar is by audion VT5, bidirectional thyristor D10, and negative pole is through two
After the pipe D9 of pole, the first anode with bidirectional thyristor D10 is connected, positive pole is as this overvoltage crowbar
Electric capacity C11, the N pole of input is connected with the negative pole of electric capacity C11, the diode D8 of P pole ground connection, just
Pole is connected with the first anode of bidirectional thyristor D10, negative pole after resistance R10 with the P of diode D8
The electric capacity C12 that pole is connected, be serially connected in bidirectional thyristor D10 controls end and the colelctor electrode of audion VT5
Between resistance R11, one end is connected with the second plate of bidirectional thyristor D10, the other end is through resistance R12
The resistance R13 that emitter stage with audion VT5 is connected afterwards, and the colelctor electrode of positive pole and audion VT5
Be connected, electric capacity C13 group that negative pole second plate with bidirectional thyristor D10 after resistance R14 is connected
Become；The junction point ground connection of described resistance R12 and resistance R13；The second plate of described bidirectional thyristor D10
As the outfan of this overvoltage crowbar and it is connected with frequency adjustment circuit；Described overvoltage crowbar
Input is connected with power circuit.
Described power amplification circuit is by the colelctor electrode of amplifier P, audion VT4, negative pole and audion VT4
Be connected, positive pole as the electric capacity C8 of the input of this power amplification circuit, minus earth, positive pole are through resistance
Electric capacity C9, the P pole that after R7, base stage with audion VT4 is connected is connected with the colelctor electrode of audion VT4
Connect, diode D6, P pole that N pole is connected with the positive pole of amplifier P is connected with the negative pole of amplifier P,
The diode D7 of N pole ground connection, positive pole is connected with the base stage of audion VT4, negative pole and audion VT4
Emitter stage the electric capacity C7, the resistance R8 being in parallel with electric capacity C7 that are connected, be serially connected in the defeated of amplifier P
Go out and hold the resistance R9 between the N pole of diode D7, and positive pole is connected with the outfan of amplifier P,
Negative pole forms as the electric capacity C10 of the outfan of this power amplification circuit；The colelctor electrode of described audion VT4
Be connected with the positive pole of electric capacity C9, its emitter stage is connected with the N pole of diode D7；Described power amplification
The input of circuit is connected with gate driver circuit, its outfan then with the secondary inductance coil of transformator T
Non-same polarity be connected.
Described power circuit is by diode rectifier U1, audion VT2, positive pole and diode rectifier U1
The electric capacity C1 that cathode output end is connected, negative pole is connected with the cathode output end of diode rectifier U1,
Resistance R1, the P pole being serially connected between the positive pole of electric capacity C1 and the colelctor electrode of audion VT2 and audion VT2
The Zener diode D3 that base stage is connected, N pole positive pole with electric capacity C1 after resistance R4 is connected, string
The resistance R5 being connected between the positive pole of electric capacity C1 and the HV pin of control chip U2, and positive pole and electric capacity
The electric capacity C4 composition that the positive pole of C1 is connected, negative pole is connected with the VB pin of control chip U2；Described
The grounded emitter of audion VT2, its base stage are connected with the VCC pin of control chip U2；Described electricity
The positive pole also Same Name of Ends with the former limit inductance coil of transformator T holding C1 is connected；Described diode rectifier
The cathode output end of U1 is connected with the input of overvoltage crowbar.
Described frequency adjustment circuit is by the P of audion VT1, field effect transistor MOS1, N pole and diode D4
The diode D1 that pole is connected, P pole is connected with the base stage of audion VT1, is serially connected in audion VT1
Emitter stage and the source electrode of field effect transistor MOS1 between the colelctor electrode of resistance R2, P pole and audion VT1
Be connected, diode D2 that N pole is connected with the RT pin of control chip U2, and positive pole imitates with field
Should the electric capacity C2 group that drain electrode is connected, negative pole is connected with the CT pin of control chip U2 of pipe MOS1
Become；The source electrode of described field effect transistor MOS1 is connected with the outfan of overvoltage crowbar, its grid then with
The colelctor electrode of audion VT1 is connected；The negative pole of described electric capacity C3 and the source electrode phase of field effect transistor MOS1
Connect；The common shape of Same Name of Ends of the source electrode of described field effect transistor MOS1 and the secondary inductance coil of transformator T
Become outfan.
Described gate driver circuit is by field effect transistor MOS2, and audion VT3, P pole is with control chip U2's
The diode D5 that VS pin is connected, N pole is connected with the grid of field effect transistor MOS2, concatenates on the scene
Resistance R6 between source electrode and the colelctor electrode of audion VT3 of effect pipe MOS2, negative pole and audion VT3
The electric capacity C5 that emitter stage is connected, positive pole is connected with the input of power amplification circuit composition；Described field
The drain electrode of effect pipe MOS2 is connected with the positive pole of electric capacity C5；The base stage of described audion VT3 is imitated with field
Should the source electrode of pipe MOS2 be connected, its grounded collector.
Described control chip U2 is the integrated chip of GR6953.
The present invention compared with prior art has the following advantages and beneficial effect:
(1) present invention uses the integrated chip of GR6953 as control chip and to combine peripheral circuit, makes the present invention
Starting current less, thus reduce the startup power consumption of the present invention, make the present invention more energy-conservation.
(2) present invention can export high-power, thus meets the demand that multiple LED works simultaneously.
(3) present invention can when overvoltage occurs automatic shutoff circuit, it is to avoid system self and LED are subject to
The damage of overvoltage.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention.
Fig. 2 is the structure chart of the power amplification circuit of the present invention.
Fig. 3 is the structure chart of the overvoltage crowbar 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 present invention is mainly by control chip U2, transformator T, respectively with control chip U2
The power circuit being connected and frequency adjustment circuit, P pole is connected with frequency adjustment circuit, N pole with control core
The diode D4 that the VS pin of sheet U2 is connected, positive pole is connected with the SGND pin of control chip U2,
The electric capacity C3 that negative pole is connected with frequency adjustment circuit, one end is connected with the PGND pin of control chip U2
Connect, the other end be connected with frequency adjustment circuit while the resistance R3 of ground connection, with the VS of control chip U2
The gate driver circuit that pin is connected, the overvoltage protection being serially connected between power circuit and frequency adjustment circuit
Circuit, the power between the non-same polarity of the secondary inductance coil being serially connected in gate driver circuit and transformator T
Amplifying circuit, and positive pole is connected with the Same Name of Ends of the former limit inductance coil of transformator T, negative pole and transformation
The non-same polarity of the former limit inductance coil of device T be connected while ground connection electric capacity C6 composition；Described transformation
The Same Name of Ends of the former limit inductance coil of device T is connected with power circuit.In order to reach the purpose of the present invention, institute
State the control chip U2 integrated chip of preferred GR6953 to realize.
Wherein, described power circuit by diode rectifier U1, audion VT2, resistance R1, resistance R4,
Resistance R5, electric capacity C1, Zener diode D3 and electric capacity C4 form.
During connection, the positive pole of electric capacity C1 is connected with the cathode output end of diode rectifier U1, its negative pole
It is connected with the cathode output end of diode rectifier U1.Resistance R1 is serially connected in the positive pole and three of electric capacity C1
Between the colelctor electrode of pole pipe VT2.The P pole of Zener diode D3 is connected with the base stage of audion VT2,
Its N pole positive pole with electric capacity C1 after resistance R4 is connected.Resistance R5 be serially connected in electric capacity C1 positive pole and
Between the HV pin of control chip U2.The positive pole of electric capacity C4 is connected with the positive pole of electric capacity C1, it is born
Pole is connected with the VB pin of control chip U2.
Meanwhile, the VCC pin of the grounded emitter of described audion VT2, its base stage and control chip U2
It is connected.The positive pole of described electric capacity C1 also Same Name of Ends with the former limit inductance coil of transformator T is connected.Institute
The input of the cathode output end and overvoltage crowbar of stating diode rectifier U1 is connected.Described diode
The input termination power of commutator U1.
Described frequency adjustment circuit by audion VT1, field effect transistor MOS1, resistance R2, diode D1,
Diode D2 and electric capacity C2 composition.
During connection, the N pole of diode D1 is connected with the P pole of diode D4, its P pole and audion
The base stage of VT1 is connected.Resistance R2 is serially connected in the emitter stage of audion VT1 and field effect transistor MOS1
Between source electrode.The P pole of diode D2 is connected with the colelctor electrode of audion VT1, its N pole with control core
The RT pin of sheet U2 is connected.The positive pole of electric capacity C2 is connected with the drain electrode of field effect transistor MOS1, it
Negative pole is connected with the CT pin of control chip U2.
The source electrode of this field effect transistor MOS1 is connected with the outfan of overvoltage crowbar, its grid is then with three
The colelctor electrode of pole pipe VT1 is connected.The described negative pole of electric capacity C3 is connected with the source electrode of field effect transistor MOS1
Connect.The Same Name of Ends of the source electrode of described field effect transistor MOS1 and the secondary inductance coil of transformator T is collectively forming
Outfan also connects LED lamp.
It addition, described gate driver circuit is by field effect transistor MOS2, audion VT3, diode D5, electricity
Resistance R6 and electric capacity C5 composition.
During connection, the P pole of diode D5 is connected with the VS pin of control chip U2, its N pole and field
The grid of effect pipe MOS2 is connected.Resistance R6 is serially connected in source electrode and the audion of field effect transistor MOS2
Between the colelctor electrode of VT3.The negative pole of electric capacity C5 is connected with the emitter stage of audion VT3, its positive pole with
The input of power amplification circuit is connected.The positive pole phase of the drain electrode of described field effect transistor MOS2 and electric capacity C5
Connect.The described base stage of audion VT3 is connected with the source electrode of field effect transistor MOS2, its grounded collector.
As in figure 2 it is shown, described power amplification circuit is by amplifier P, audion VT4, resistance R7, resistance
R8, resistance R9, electric capacity C7, electric capacity C8, electric capacity C9, electric capacity C10, diode D6 and diode
D7 forms.
During connection, the negative pole of electric capacity C8 is connected with the colelctor electrode of audion VT4, its positive pole is as this merit
The input of rate amplifying circuit is also connected with the positive pole of electric capacity C5.The minus earth of electric capacity C9, its positive pole
After resistance R7, the base stage with audion VT4 is connected.The P pole of diode D6 is with audion VT4's
Colelctor electrode is connected, its N pole is connected with the positive pole of amplifier P.The P pole of diode D7 and amplifier P
Negative pole be connected, its N pole ground connection.The positive pole of electric capacity C7 is connected with the base stage of audion VT4, it
Negative pole is connected with the emitter stage of audion VT4.Resistance R8 is in parallel with electric capacity C7.Resistance R9 concatenates
Between the outfan and the N pole of diode D7 of amplifier P.The positive pole of electric capacity C10 is with amplifier P's
Outfan is connected, its negative pole as this power amplification circuit outfan and with the secondary inductance of transformator T
The non-same polarity of coil is connected.The colelctor electrode of described audion VT4 is connected with the positive pole of electric capacity C9,
Its emitter stage is connected with the N pole of diode D7.
As it is shown on figure 3, described overvoltage crowbar is by audion VT5, bidirectional thyristor D10, resistance R10,
Resistance R11, resistance R12, resistance R13, resistance R14, electric capacity C11, electric capacity C12, electric capacity C13,
Diode D8 and diode D9 composition.
During connection, the negative pole of electric capacity C11 is connected with the P pole of diode D9, its positive pole is as this overvoltage
The input of protection circuit is also connected with the cathode output end of diode rectifier U1.Described diode D9
The N pole then first anode with bidirectional thyristor D10 be connected.The N pole of diode D8 and electric capacity C11
Negative pole be connected, its P pole ground connection.The first anode phase of the positive pole of electric capacity C12 and bidirectional thyristor D10
Connect, its negative pole P pole with diode D8 after resistance R10 is connected.Resistance R11 is serially connected in two-way
IGCT D10 controls between end and the colelctor electrode of audion VT5.One end of resistance R13 and two-way brilliant lock
The second plate of pipe D10 is connected, its other end emitter stage with audion VT5 after resistance R12 is connected
Connect.The positive pole of electric capacity C13 is connected with the colelctor electrode of audion VT5, its negative pole after resistance R14 with double
Second plate to IGCT D10 is connected.Meanwhile, the junction point of described resistance R12 and resistance R13 connects
Ground；The second plate of described bidirectional thyristor D10 as this overvoltage crowbar outfan and and field effect
The source electrode of pipe MOS1 is connected.
The present invention uses the integrated chip of GR6953 as control chip and to combine peripheral circuit, makes the present invention be formed
One half-bridge control structure, thus reduce the startup power consumption of the present invention, make the present invention more energy-conservation.This
Bright can export high-power, thus meet the demand that multiple LED works simultaneously.Meanwhile, the present invention can be
Automatic shutoff circuit during overvoltage occurs, it is to avoid system self and LED are damaged by overvoltage.
As it has been described above, just can well realize the present invention.
Claims (7)
1. an overpressure-proof type LED energy-saving driving system based on power amplification circuit, it is characterised in that:
Main by control chip U2, transformator T, the power circuit being connected with control chip U2 respectively and frequency
Regulation circuit, P pole is connected with frequency adjustment circuit, N pole is connected with the VS pin of control chip U2
Diode D4, positive pole is connected with the SGND pin of control chip U2, negative pole and frequency adjustment circuit
The electric capacity C3 being connected, one end is connected with the PGND pin of control chip U2, the other end is adjusted with frequency
Economize on electricity road be connected while the resistance R3 of ground connection, the grid being connected with the VS pin of control chip U2 drives
Galvanic electricity road, the overvoltage crowbar being serially connected between power circuit and frequency adjustment circuit, it is serially connected in grid and drives
Power amplification circuit between the non-same polarity of the secondary inductance coil of galvanic electricity road and transformator T, and positive pole
Be connected with the Same Name of Ends of the former limit inductance coil of transformator T, the former limit inductance coil of negative pole and transformator T
Non-same polarity be connected while ground connection electric capacity C6 composition；The former limit inductance coil of described transformator T
Same Name of Ends be connected with power circuit.
A kind of overpressure-proof type LED based on power amplification circuit the most according to claim 1 is energy-conservation
Drive system, it is characterised in that: described overvoltage crowbar by audion VT5, bidirectional thyristor D10,
Negative pole first anode with bidirectional thyristor D10 after diode D9 is connected, positive pole is protected as this overvoltage
Electric capacity C11, the N pole of the input of protection circuit is connected with the negative pole of electric capacity C11, the diode of P pole ground connection
D8, positive pole is connected with the first anode of bidirectional thyristor D10, negative pole after resistance R10 with diode
The electric capacity C12 that the P pole of D8 is connected, is serially connected in control end and the audion VT5 of bidirectional thyristor D10
Colelctor electrode between resistance R11, one end is connected with the second plate of bidirectional thyristor D10, the other end
The resistance R13 that emitter stage with audion VT5 is connected after resistance R12, and positive pole and audion VT5
The electricity that colelctor electrode is connected, negative pole second plate with bidirectional thyristor D10 after resistance R14 is connected
Hold C13 composition；The junction point ground connection of described resistance R12 and resistance R13；Described bidirectional thyristor D10's
Second plate as the outfan of this overvoltage crowbar and is connected with frequency adjustment circuit；Described overvoltage is protected
The input of protection circuit is connected with power circuit.
A kind of overpressure-proof type LED based on power amplification circuit the most according to claim 2 is energy-conservation
Drive system, it is characterised in that: described power amplification circuit is by amplifier P, audion VT4, negative pole and three
The colelctor electrode of pole pipe VT4 is connected, positive pole is as the electric capacity C8 of the input of this power amplification circuit, negative pole
Electric capacity C9, P pole that ground connection, positive pole base stage with audion VT4 after resistance R7 is connected and audion
The colelctor electrode of VT4 is connected, N pole is connected with the positive pole of amplifier P diode D6, P pole and amplification
The negative pole of device P is connected, the diode D7 of N pole ground connection, positive pole is connected with the base stage of audion VT4,
The electric capacity C7 that negative pole is connected with the emitter stage of audion VT4, the resistance R8 being in parallel with electric capacity C7, string
The resistance R9 being connected between the outfan of amplifier P and the N pole of diode D7, and positive pole and amplifier
The outfan of P is connected, negative pole forms as the electric capacity C10 of the outfan of this power amplification circuit；Described
The colelctor electrode of audion VT4 is connected with the positive pole of electric capacity C9, the N pole of its emitter stage and diode D7
It is connected；The input of described power amplification circuit is connected with gate driver circuit, its outfan then with change
The non-same polarity of the secondary inductance coil of depressor T is connected.
A kind of overpressure-proof type LED based on power amplification circuit the most according to claim 3 is energy-conservation
Drive system, it is characterised in that: described power circuit is by diode rectifier U1, audion VT2, positive pole
Be connected with the cathode output end of diode rectifier U1, negative pole exports with the negative pole of diode rectifier U1
The electric capacity C1 that end is connected, is serially connected in the resistance between the positive pole of electric capacity C1 and the colelctor electrode of audion VT2
R1, P pole is connected with the base stage of audion VT2, N pole positive pole with electric capacity C1 after resistance R4 is connected
The Zener diode D3 connect, is serially connected in the electricity between the positive pole of electric capacity C1 and the HV pin of control chip U2
Resistance R5, and positive pole is connected with the positive pole of electric capacity C1, negative pole is connected with the VB pin of control chip U2
The electric capacity C4 composition connect；The grounded emitter of described audion VT2, its base stage are with control chip U2's
VCC pin is connected；The positive pole of described electric capacity C1 also with the Same Name of Ends of the former limit inductance coil of transformator T
It is connected；The described cathode output end of diode rectifier U1 is connected with the input of overvoltage crowbar.
A kind of overpressure-proof type LED based on power amplification circuit the most according to claim 4 is energy-conservation
Drive system, it is characterised in that: described frequency adjustment circuit is by audion VT1, field effect transistor MOS1, N
The diode D1 that pole is connected with the P pole of diode D4, P pole is connected with the base stage of audion VT1,
Resistance R2, the P pole and three being serially connected between emitter stage and the source electrode of field effect transistor MOS1 of audion VT1
The diode D2 that the colelctor electrode of pole pipe VT1 is connected, N pole is connected with the RT pin of control chip U2,
And positive pole is connected with the drain electrode of field effect transistor MOS1, negative pole is connected with the CT pin of control chip U2
The electric capacity C2 composition connect；The source electrode of described field effect transistor MOS1 is connected with the outfan of overvoltage crowbar,
Its grid then colelctor electrode with audion VT1 is connected；The negative pole of described electric capacity C3 and field effect transistor MOS1
Source electrode be connected；The source electrode of described field effect transistor MOS1 and the secondary inductance coil of transformator T of the same name
End is collectively forming outfan.
A kind of overpressure-proof type LED based on power amplification circuit the most according to claim 5 is energy-conservation
Drive system, it is characterised in that: described gate driver circuit is by field effect transistor MOS2, audion VT3, P
Pole is connected with the VS pin of control chip U2, N pole is connected with the grid of field effect transistor MOS2 two
Pole pipe D5, the resistance R6 being serially connected between the source electrode of field effect transistor MOS2 and the colelctor electrode of audion VT3,
The electricity that negative pole is connected with the emitter stage of audion VT3, positive pole is connected with the input of power amplification circuit
Hold C5 composition；The drain electrode of described field effect transistor MOS2 is connected with the positive pole of electric capacity C5；Described audion
The base stage of VT3 is connected with the source electrode of field effect transistor MOS2, its grounded collector.
A kind of overpressure-proof type LED based on power amplification circuit the most according to claim 6 is energy-conservation
Drive system, it is characterised in that: described control chip U2 is the integrated chip of GR6953.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610523013.6A CN106028543A (en) | 2016-07-05 | 2016-07-05 | Overvoltage protective LED energy-saving driving system based on power amplification circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610523013.6A CN106028543A (en) | 2016-07-05 | 2016-07-05 | Overvoltage protective LED energy-saving driving system based on power amplification circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106028543A true CN106028543A (en) | 2016-10-12 |
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ID=57107358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610523013.6A Pending CN106028543A (en) | 2016-07-05 | 2016-07-05 | Overvoltage protective LED energy-saving driving system based on power amplification circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571665A (en) * | 2017-03-07 | 2018-09-25 | B/E航空公司 | LED bulb and its operating method |
| CN108834253A (en) * | 2018-05-14 | 2018-11-16 | 卫斌鹏 | LED with overvoltage protection drives energy-saving power supply |
-
2016
- 2016-07-05 CN CN201610523013.6A patent/CN106028543A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571665A (en) * | 2017-03-07 | 2018-09-25 | B/E航空公司 | LED bulb and its operating method |
| CN108834253A (en) * | 2018-05-14 | 2018-11-16 | 卫斌鹏 | LED with overvoltage protection drives energy-saving power supply |
| CN108834253B (en) * | 2018-05-14 | 2020-07-24 | 佛山市蓝灯照明电器有限公司 | L ED driving energy-saving power supply with overvoltage protection |
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Application publication date: 20161012 |