CN105636273B - A kind of LED drive circuit of compatible electronic rectifier and alternating current - Google Patents
A kind of LED drive circuit of compatible electronic rectifier and alternating current Download PDFInfo
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- CN105636273B CN105636273B CN201610071433.5A CN201610071433A CN105636273B CN 105636273 B CN105636273 B CN 105636273B CN 201610071433 A CN201610071433 A CN 201610071433A CN 105636273 B CN105636273 B CN 105636273B
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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
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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
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- 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 the LED drive circuits of a kind of compatible electronic rectifier and alternating current, including main circuit, alternating current conducting branches and electron rectifier conducting branches, the alternating current conducting branches and the electron rectifier conducting branches are separately connected the main circuit, wherein, the electron rectifier conducting branches include the frequency detection circuit for preventing the low frequency ac of alternating current from passing through, the high-frequency alternating current of electron rectifier is allowed to pass through；By carrying out frequency detecting to input signal, allows ECG and alternating current by different branch driving LED, realize the compatibility of ECG and alternating current, solve the problems, such as that compatibility is limited, circuit safety is reliable.
Description
Technical field
The present invention relates to a kind of LED of led light technology field more particularly to compatible electronic rectifier and alternating current driving electricity
Road.
Background technique
Currently, the driving circuit mainstream of LED lamp tube on the market has two major classes: one kind is compatible electronic rectifier (ECG)
Circuit, such circuit has that compatibility is limited due to the model multiplicity of ECG；One kind is worked under the input of alternating current
Circuit, these two types of circuits can not be compatible with ECG and alternating current simultaneously.
Summary of the invention
In view of the problems of the existing technology, it is an object of the invention to propose a kind of compatible electronic rectifier and alternating current
LED drive circuit, the circuit can be compatible with the input signal of ECG and alternating current simultaneously, solve the problems, such as that compatibility is limited, circuit
Securely and reliably.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of LED drive circuit of compatible electronic rectifier and alternating current characterized by comprising main circuit, city conduct
Branch and electron rectifier conducting branches, the alternating current conducting branches and the electron rectifier conducting branches are separately connected described
Main circuit, wherein the electron rectifier conducting branches include that the low frequency ac of alternating current is prevented to pass through, allow electron rectifier
The frequency detection circuit that passes through of high-frequency alternating current.
Wherein, the frequency detection circuit includes the high-pass filter for allowing the high-frequency alternating current of electron rectifier to pass through,
The high-pass filter includes one end of one end connection C2 of capacitor C2, C3 and resistance R7, R7, and the other end of R7 connects the one of C3
End.
Wherein, the electron rectifier conducting branches further include open loop protection circuit, and the open loop protection circuit includes crystalline substance
One end of the anode connection R11 of brake tube Q4, resistance R1, R11, capacitor C7 and voltage-stabiliser tube ZD2, ZD2, the other end of R11 connect Q4
Gate pole, R1 connects the gate pole of Q4 with one end of C7, the minus earth of the other end, Q4 of R1 and C7.
Wherein, the electron rectifier conducting branches further include rectifier DB1, voltage regulator circuit, metal-oxide-semiconductor Q2, in the LED
Driving circuit is the branch breaking circuit that the alternating current conducting branches are turned off when electron rectifier inputs, and the voltage regulator circuit includes
Resistance R8, R9, R10, capacitor C4, C5, C6 and voltage-stabiliser tube ZD1, ZD3, the branch breaking circuit include metal-oxide-semiconductor Q3, the electricity
The one end for holding C2 connects an input terminal of the rectifier DB1, another input terminal of one end connection DB1 of C3, the DB1
Cathode output end be separately connected one end of R8, C4, C5, R9 and the cathode of ZD2, the cathode output end of DB1, R8, C4 and C5
Other end ground connection, the other end of R9 are separately connected one end of C6 and the cathode of ZD1, ZD3, and the other end of C6 and the anode of ZD1 connect
Ground, the anode of ZD3 are separately connected the grid of one end of R10, the grid of Q2 and Q3, the other end ground connection of R10, the drain electrode connection of Q2
The source electrode of the negative input of LED, Q2 and Q3 are grounded.
Wherein, the alternating current conducting branches include resistive-capacitive voltage divider circuit, driving circuit, metal-oxide-semiconductor Q1 and reduction voltage circuit, described
Resistive-capacitive voltage divider circuit connects the input terminal of the driving circuit with the output end of the branch breaking circuit, the driving circuit
Output end connects the grid of Q1, and the drain electrode of Q1 connects the reduction voltage circuit.
Wherein, the alternating current conducting branches specifically include resistance R2, R3, R4, R5, R12, R13, R14, R15, R16, R17,
R18, R19, R20 and R21, electrolytic capacitor C12, capacitor C13, C14, diode D6, D7 and D8, driving chip U1, transformer T1
With metal-oxide-semiconductor Q1, one end of R2 is separately connected the cathode of D8 and the electrode input end of LED, one end of the other end connection R3 of R2, R3
Other end connection R4 one end, the other end of R4 is separately connected the pin of one end of R5, the anode of C12, one end of C13 and U1
5, the drain electrode of Q3, the cathode of C12 and the other end ground connection of capacitor C13, the pin 1 of U1 connect one end of R18, the other end of R18
It is separately connected one end of R19, R20 and R21, the other end ground connection of R19, R20 and R21, the pin 2 of U1 is grounded, and the pin 3 of U1 is logical
It is grounded after crossing C14 and R14 series connection, the cathode of the other end connection D6 of the R5, the anode of D6 is separately connected the secondary coil of T1
Same Name of Ends and R12 one end, the secondary coil of T1 different name end ground connection, the different name end of the primary coil of T1 is separately connected D8's
The drain electrode of anode and Q1, the Same Name of Ends of the primary coil of T1 are separately connected the cathode of C10 and the negative input of the LED, R12
The other end be separately connected the one end R13 and the pin 4 of U1, the other end ground connection of R13, the pin 6 of U1 is separately connected one end of R15
With D7 cathode, the grid of the other end connection Q1 of R15, the anode of D7 connects one end of R16, and the other end of R16 is separately connected Q1
Grid and R17 one end, one end of the other end connection source electrode of Q1 of R17, R19.
Wherein, the main circuit include fuse, LC filter circuit, common mode inductance L2, rectifier bridge, π type filter circuit and
Output circuit, the input terminal of the fuse connect the input terminal of the LED drive circuit, the output end connection of the fuse
The input terminal of the LC filter circuit, the input terminal of the output end connection L2 of the LC filter circuit, the output end of L2 connect institute
The input terminal of rectifier bridge is stated, the output end of the rectifier bridge connects the input terminal of the π type filter circuit, the π type filtered electrical
The output end on road connects the input terminal of the output circuit, and the output end of the output circuit connects LED, the High frequency filter electricity
Road connects the output end of the common mode inductance L2, the output end of π type filter circuit described in the resistive-capacitive voltage divider circuit connection.
Wherein, the LC filter circuit includes that the both ends of inductance L1 and capacitor C1, C1 are connected to LED drive circuit
On two input terminals, one end of one end connection C1 of L1.
Wherein, the fuse, rectifier bridge, π type filter circuit and output circuit include fuse F1, F2, F3 and F4, electricity
Hold C8, C9 and C11, electrolytic capacitor C10, inductance L5, rectifier diode D1, D2, D3 and D4 and resistance R6, the LED driving electricity
Two firewire input terminals on road pass through one end of connection C1 after F1 and F2 respectively, and two zero curve input terminals pass through F3 and F4 respectively
The other end of C1, one end of one end connection C1 of L1 are connected later, and it is defeated to correspond to this for an input terminal of the other end connection L2 of L1
The output end for entering end is separately connected the anode of D1 and the cathode of D2, and another input terminal of the other end connection L2 of C1 is corresponding to be somebody's turn to do
The output end of input terminal is separately connected the anode of D3 and the cathode of D4, the cathode of D1 and D3 be separately connected C8 one end and L5 one
End, the plus earth of D2 and D4, the other end of L5 are separately connected one end of C9 and the anode of LED, the other end ground connection of C8 and C9,
One end of the anode of C10, C11 and R6 are separately connected the anode of LED, the cathode of C10, and the other end of C11 and R6 are separately connected LED
Cathode, the capacitor C2 one end connection L2 an output end, C2 the other end connection DB1 an input terminal, C3's
One end connects the another output of L2, another input terminal of the other end connection DB1 of C3, the yin of the anode connection D3 of Q4
Pole.
Technical solution bring provided by the invention has the beneficial effect that
The LED drive circuit of compatible electronic rectifier and alternating current of the invention, including main circuit, alternating current conducting branches and electricity
Sub- rectifier conducting branches, the alternating current conducting branches and the electron rectifier conducting branches are separately connected the main circuit,
Wherein, the electron rectifier conducting branches include the high frequency for preventing the low frequency ac of alternating current from passing through, allow electron rectifier
The frequency detection circuit that alternating current passes through；By carrying out frequency detecting to input signal, ECG and alternating current is allowed to pass through difference
Branch drive LED, realize the compatibility of ECG and alternating current, solve the problems, such as that compatibility is limited, circuit safety is reliable.
Detailed description of the invention
Fig. 1 is the circuit block diagram for the LED drive circuit that the specific embodiment of the invention provides.
Fig. 2 is the circuit diagram of the main circuit for the LED drive circuit that the specific embodiment of the invention provides.
Fig. 3 is the circuit diagram of the alternating current conducting branches for the LED drive circuit that the specific embodiment of the invention provides.
Fig. 4 is the circuit diagram of the electron rectifier for the LED drive circuit that the specific embodiment of the invention provides.
Fig. 5 is the circuit diagram for the LED drive circuit that the specific embodiment of the invention provides.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
It is driven referring to the LED that Fig. 1 to Fig. 5, Fig. 1 are compatible electronic rectifier and alternating current that the specific embodiment of the invention provides
The circuit block diagram of dynamic circuit, Fig. 2 are the LED drivings of the compatible electronic rectifier that the specific embodiment of the invention provides and alternating current
The circuit diagram of circuit, Fig. 3 are the circuit diagrams of the alternating current conducting branches for the LED drive circuit that the specific embodiment of the invention provides,
Fig. 4 is the circuit diagram of the electron rectifier for the LED drive circuit that the specific embodiment of the invention provides, and Fig. 5 is of the invention specific
The circuit diagram for the LED drive circuit that embodiment provides.
A kind of LED drive circuit of compatible electronic rectifier and alternating current characterized by comprising main circuit 10, city's conductance
Logical branch 20 and electron rectifier conducting branches 30, the alternating current conducting branches 20 and the electron rectifier conducting branches 30 divide
Do not connect the main circuit 10, wherein the electron rectifier conducting branches 30 include prevent alternating current low frequency ac pass through,
The frequency detection circuit 31 for allowing the high-frequency alternating current of electron rectifier to pass through.
Main circuit 10 is the public circuit of compatible ECG and alternating current, and the output signal of ECG is high frequency ac signal, alternating current
The signal of output is low frequency ac, and frequency detection circuit 31 is used to detect the frequency of the input signal of the LED drive circuit, resistance
The high-frequency alternating current that only low frequency ac of alternating current passes through, allows electron rectifier passes through, when the LED drive circuit is that alternating current is defeated
Fashionable, signal cannot be sent to LED from alternating current conducting branches 20 by frequency detection circuit 31；When the LED drive circuit is that ECG is defeated
Fashionable, signal is sent to LED from ECG conducting branches 30 by frequency detection circuit 31, to realize the compatibility of ECG and alternating current.
Wherein, the frequency detection circuit 31 includes the high-pass filtering for allowing the high-frequency alternating current of electron rectifier to pass through
Device, the high-pass filter include one end of one end connection C2 of capacitor C2, C3 and resistance R7, R7, and the other end of R7 connects C3
One end.
Wherein, the electron rectifier conducting branches 30 further include open loop protection circuit 33, the open loop protection circuit 33
Including thyristor Q4, resistance R1, R11, one end of the anode connection R11 of capacitor C7 and voltage-stabiliser tube ZD2, ZD2, the other end of R11
The gate pole of Q4 is connected, R1 connects the gate pole of Q4 with one end of C7, the minus earth of the other end, Q4 of R1 and C7.
When circuit is in no-load condition, the output voltage of ECG is up to 800-1000V, if can without safeguard measure circuit
It can be burned out, open loop protection circuit 33 realizes open-circuit-protection, high voltage reverse breakdown by thyristor Q4 and voltage-stabiliser tube ZD2
Voltage-stabiliser tube ZD2, so that the gate voltage of thyristor Q4, which reaches it, is connected threshold values, thyristor Q4 conducting, by the rectification of main circuit 10
The output voltage of bridge 14 is locked in the conduction voltage drop of Q4, and protection circuit will not damage, while improve the safety coefficient of circuit.
Wherein, the electron rectifier conducting branches 30 further include rectifier DB1, voltage regulator circuit, metal-oxide-semiconductor Q2, described
LED drive circuit is the branch breaking circuit that the alternating current conducting branches are turned off when electron rectifier inputs, the voltage regulator circuit
Including resistance R8, R9, R10, capacitor C4, C5, C6 and voltage-stabiliser tube ZD1, ZD3, the branch breaking circuit includes metal-oxide-semiconductor Q3, institute
The one end for stating capacitor C2 connects an input terminal of the rectifier DB1, another input terminal of one end connection DB1 of C3, institute
The cathode output end for stating DB1 is separately connected one end of R8, C4, C5, R9 and the cathode of ZD2, the cathode output end of DB1, R8, C4 and
The other end of C5 is grounded, and the other end of R9 is separately connected one end of C6 and the cathode of ZD1, ZD3, the other end of C6 and the sun of ZD1
Pole ground connection, the anode of ZD3 are separately connected the grid of one end of R10, the grid of Q2 and Q3, the other end ground connection of R10, the drain electrode of Q2
Connect the negative input of LED, the source electrode ground connection of Q2 and Q3.
Voltage regulator circuit 34 is used to stablize the gate source voltage of metal-oxide-semiconductor Q2 and Q3, shields to it, when ECG input,
Metal-oxide-semiconductor Q2 conducting, the cathode of the drain electrode connection LED of metal-oxide-semiconductor Q2, constitutes ECG power circuit.
Wherein, the alternating current conducting branches 20 include resistive-capacitive voltage divider circuit 21, driving circuit 22, metal-oxide-semiconductor Q123 and decompression
Circuit 24, the resistive-capacitive voltage divider circuit 21 connect the input of the driving circuit 22 with the output end of the branch breaking circuit 35
End, the grid of the output end connection Q1 of the driving circuit 22, the drain electrode of Q1 connect the reduction voltage circuit 24.
Wherein, the alternating current conducting branches 20 specifically include resistance R2, R3, R4, R5, R12, R13, R14, R15, R16,
R17, R18, R19, R20 and R21, electrolytic capacitor C12, capacitor C13, C14, diode D6, D7 and D8, driving chip U1, transformation
One end of device T1 and metal-oxide-semiconductor Q1, R2 are separately connected the cathode of D8 and the electrode input end of LED, and the other end of R2 connects the one of R3
End, one end of the other end connection R4 of R3, the other end of R4 are separately connected one end of R5, the anode of C12, one end of C13 and U1
Pin 5, Q3 drain electrode, the other end ground connection of the cathode of C12 and capacitor C13, the pin 1 of U1 connects one end of R18, R18's
The other end is separately connected one end of R19, R20 and R21, the other end ground connection of R19, R20 and R21, and the pin 2 of U1 is grounded, U1's
For pin 3 by being grounded after C14 and R14 series connection, the cathode of the other end connection D6 of the R5, the anode of D6 is separately connected time of T1
The grade Same Name of Ends of coil and one end of R12, the different name end ground connection of the secondary coil of T1, the different name end of the primary coil of T1 connects respectively
The drain electrode of the anode and Q1 of D8 is connect, the Same Name of Ends of the primary coil of T1 is separately connected the cathode input of the cathode and the LED of C10
End, the other end of R12 are separately connected the one end R13 and the pin 4 of U1, the other end ground connection of R13, and the pin 6 of U1 is separately connected R15
One end and D7 cathode, R15 the other end connection Q1 grid, D7 anode connection R16 one end, R16 the other end difference
The grid of Q1 and one end of R17 are connected, the other end of R17 connects one end of the source electrode of Q1, R19.
Alternating current conducting branches 20 drive metal-oxide-semiconductor Q1 using the driving chip U1 of model SY5839, when the pin 5 of U1 is defeated
When the voltage entered reaches unlatching threshold values, the pin 6 of U1 exports high level, Q1 conducting, and electric current flows through transformer T1 through Q1 to ground；When
When the voltage that the pin 5 of U1 inputs is lower than threshold values is opened, the pin 6 of U1 exports low level, Q1 cut-off, and electric current flows through transformer warp
Sustained diode 8 is formed into a loop.The working condition of Q1 is controlled by the voltage of the pin 5 of control U1, wherein the pin 5 of U1
Voltage lead to resistive-capacitive voltage divider circuit 21, the drain electrode of Q1 connects reduction voltage circuit 24, and reduction voltage circuit 24 connects the output of main circuit 10
Circuit 16, when Q1 on or off, reduction voltage circuit 24 can be connected to output circuit 16, input item in alternating current to realize
Normal use under part.
When ECG input, Q3 conducting, the tube voltage drop of Q3 loads the pin 5 in driving chip U1, so that driving chip U1
The level of pin 5 is reduced to the fixed output low level of pin 6 of zero, U1, and Q1 is turned off, while making the secondary pole side line of transformer T1
The pressure drop of circle is that zero, T1 stops working, and the output circuit of reduction voltage circuit 24 and main circuit 10 disconnects, and alternating current conducting branches 20 stop
Work.
Wherein, the main circuit 10 includes fuse 11, LC filter circuit 12, common mode inductance L213, rectifier bridge 14, π type
Filter circuit 15 and output circuit 16, the input terminal of the fuse 11 connects the input terminal of the LED drive circuit, described molten
The output end of disconnected device 11 connects the input terminal of the LC filter circuit 12, and the output end connection L2's of the LC filter circuit 12 is defeated
Enter end, the output end of L2 connects the input terminal of the rectifier bridge 14, and the output end of the rectifier bridge 14 connects the π type filtered electrical
The output end of the input terminal on road 15, the π type filter circuit 15 connects the input terminal of the output circuit 16, the output circuit
16 output end connects LED, and the high-frequency filter circuit 31 connects the output end of the common mode inductance L2, the resistive-capacitive voltage divider electricity
Road 21 connects the output end of the π type filter circuit.
In main circuit 10, fuse 11 provides overcurrent protection, the power supply signal that LC filter circuit 12 provides alternating current or ECG
It is filtered, common mode inductance L2 is used to filter the electromagnetic interference signal of common mode in the power supply signal, and rectifier bridge 14 will be for that will exchange
Signal is converted to direct current signal, and π type filter circuit 15 is used to filter out the AC compounent in the direct current signal, so that rectification obtained
Direct current signal ripple is smaller, and the current signal after filtering is further filtered output circuit 16, improves circuit
Anti-interference ability, finally export DC powered LED.
Wherein, the LC filter circuit 12 is connected to LED drive circuit including the both ends of inductance L1 and capacitor C1, C1
Two input terminals on, one end of one end of L1 connection C1.Inductance L1 can carry out the selection of induction reactance according to the model of ECG, with
The driving circuit is improved to the compatibility of the ECG of different model, when reasonable selection capacitor C1 can effectively reduce EGC input
Booting peak voltage.
Wherein, the fuse 11, rectifier bridge 14, π type filter circuit 15 and output circuit 16 include fuse F1, F2,
F3 and F4, capacitor C8, C9 and C11, electrolytic capacitor C10, inductance L5, rectifier diode D1, D2, D3 and D4 and resistance R6, it is described
Two firewire input terminals of LED drive circuit pass through one end of connection C1 after F1 and F2, two zero curve input terminals difference respectively
By connecting the other end of C1, one end of one end connection C1 of L1, an input of the other end connection L2 of L1 after F3 and F4
End, the output end of the corresponding input terminal are separately connected the anode of D1 and the cathode of D2, and another of the other end connection L2 of C1 is defeated
Enter end, the output end of the corresponding input terminal is separately connected the anode of D3 and the cathode of D4, and the cathode of D1 and D3 are separately connected C8's
The plus earth of one end of one end and L5, D2 and D4, the other end of L5 are separately connected one end of C9 and the anode of LED, C8 and C9
Other end ground connection, the anode of C10, one end of C11 and R6 is separately connected the anode of LED, the cathode of C10, and C11 and R6's is another
End is separately connected the cathode of LED, an output end of one end connection L2 of the capacitor C2, and the other end of C2 connects the one of DB1
A input terminal, the another output of one end connection L2 of C3, another input terminal of the other end connection DB1 of C3, the sun of Q4
The cathode of pole connection D3.
The LED drive circuit of compatible electronic rectifier and alternating current of the invention, including main circuit, alternating current conducting branches and electricity
Sub- rectifier conducting branches, the alternating current conducting branches and the electron rectifier conducting branches are separately connected the main circuit,
Wherein, the electron rectifier conducting branches include the high frequency for preventing the low frequency ac of alternating current from passing through, allow electron rectifier
Frequency detection circuit, open loop protection circuit and the branch shutdown that alternating current conducting branches are turned off in ECG input that alternating current passes through
Circuit；The LED drive circuit allows ECG and alternating current to pass through different branches by carrying out frequency detecting to input signal
LED is driven, realizes the compatibility of ECG and alternating current, solves the problems, such as that compatibility is limited, while can be simultaneous by adjusting relevant parameter
Hold the ECG of different model, circuit safety is reliable.
The technical principle of the invention is described above in combination with a specific embodiment.These descriptions are intended merely to explain of the invention
Principle, and shall not be construed in any way as a limitation of the scope of protection of the invention.Based on the explanation herein, the technology of this field
Personnel can associate with other specific embodiments of the invention without creative labor, these modes are fallen within
Within protection scope of the present invention.
Claims (1)
1. a kind of LED drive circuit of compatible electronic rectifier and alternating current characterized by comprising main circuit, city conduct branch
Road and electron rectifier conducting branches, the alternating current conducting branches and the electron rectifier conducting branches are separately connected the master
Circuit, wherein the electron rectifier conducting branches include that the low frequency ac of alternating current is prevented to pass through, allow electron rectifier
The frequency detection circuit that high-frequency alternating current passes through；The frequency detection circuit includes allowing the high-frequency alternating current of electron rectifier logical
The high-pass filter crossed, the high-pass filter include capacitor C2, capacitor C3 and resistance R7, and one end of resistance R7 connects capacitor C2
First end, resistance R7 the other end connection capacitor C3 first end；The electron rectifier conducting branches further include that open circuit is protected
Protection circuit, the open loop protection circuit include thyristor Q4, resistance R1, resistance R11, capacitor C7 and voltage-stabiliser tube ZD2, voltage-stabiliser tube
One end of the anode connection resistance R11 of ZD2, the gate pole of the other end connection thyristor Q4 of resistance R11, resistance R1 and capacitor C7's
The minus earth of the other end, thyristor Q4 of the gate pole of one end connection thyristor Q4, resistance R1 and capacitor C7；The electronic rectifier
Device conducting branches further include rectifier DB1, voltage regulator circuit, metal-oxide-semiconductor Q2, the LED drive circuit be electron rectifier input
When turn off the branch breaking circuits of the alternating current conducting branches, the voltage regulator circuit includes resistance R8, resistance R9, resistance R10, electricity
Holding C4, capacitor C5, capacitor C6 and voltage-stabiliser tube ZD1, voltage-stabiliser tube ZD3, the branch breaking circuit includes metal-oxide-semiconductor Q3, the capacitor
The first end of C2 connects an input terminal of the rectifier DB1, and another of the first end connection rectifier DB1 of capacitor C3 is defeated
Enter end, the cathode output end of the rectifier DB1 is separately connected resistance R8, capacitor C4, capacitor C5, one end of resistance R9 and pressure stabilizing
The cathode of pipe ZD2, the other end ground connection of the cathode output end of rectifier DB1, resistance R8, capacitor C4 and capacitor C5, resistance R9's
The other end is separately connected one end of capacitor C6 and the cathode of voltage-stabiliser tube ZD1, voltage-stabiliser tube ZD3, the other end and voltage-stabiliser tube of capacitor C6
The plus earth of ZD1, the anode of voltage-stabiliser tube ZD3 are separately connected the grid of one end of resistance R10, the grid of metal-oxide-semiconductor Q2 and metal-oxide-semiconductor Q3
Pole, the other end ground connection of resistance R10, the negative input of the drain electrode connection LED of metal-oxide-semiconductor Q2, the source of metal-oxide-semiconductor Q2 and metal-oxide-semiconductor Q3
Pole ground connection；The alternating current conducting branches include resistive-capacitive voltage divider circuit, driving circuit, metal-oxide-semiconductor Q1 and reduction voltage circuit, the capacitance-resistance point
Volt circuit connects the input terminal of the driving circuit, the output end of the driving circuit with the output end of the branch breaking circuit
The grid of metal-oxide-semiconductor Q1 is connected, the drain electrode of metal-oxide-semiconductor Q1 connects the reduction voltage circuit；The main circuit includes fuse, LC filtered electrical
Road, common mode inductance L2, rectifier bridge, π type filter circuit and output circuit, the input terminal of the fuse connect the LED driving
The input terminal of circuit, the output end of the fuse connect the input terminal of the LC filter circuit, the LC filter circuit it is defeated
Outlet connects the input terminal of common mode inductance L2, and the output end of common mode inductance L2 connects the input terminal of the rectifier bridge, the rectification
The output end of bridge connects the input terminal of the π type filter circuit, and the output end of the π type filter circuit connects the output circuit
Input terminal, the output end of the output circuit connects LED, and the frequency detection circuit connects the output of the common mode inductance L2
It holds, the output end of π type filter circuit described in the resistive-capacitive voltage divider circuit connection；The LC filter circuit includes inductance L1 and capacitor
C1, the both ends of capacitor C1 are connected on two input terminals of LED drive circuit, and the one of one end connection capacitor C1 of inductance L1
End, wherein inductance L1 is chosen according to the model of electron rectifier；The alternating current conducting branches specifically include resistance R2, electricity
Hinder R3, resistance R4, resistance R5, resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, electricity
Hinder R19, resistance R20 and resistance R21, electrolytic capacitor C12, capacitor C13, capacitor C14, diode D6, diode D7 and diode
D8, driving chip U1, transformer T1 and metal-oxide-semiconductor Q1, one end of resistance R2 are separately connected the cathode of diode D8 and the anode of LED
Input terminal, one end of the other end connection resistance R3 of resistance R2, one end of the other end connection resistance R4 of resistance R3, resistance R4's
The other end is separately connected the pin of one end of resistance R5, the anode of electrolytic capacitor C12, one end of capacitor C13 and driving chip U1
5, the drain electrode of metal-oxide-semiconductor Q3, the cathode of electrolytic capacitor C12 and the other end ground connection of capacitor C13, the pin 1 of driving chip U1 connect
One end of resistance R18, the other end of resistance R18 are separately connected one end of resistance R19, resistance R20 and resistance R21, resistance R19,
The pin 2 of the other end of resistance R20 and resistance R21 ground connection, driving chip U1 is grounded, and the pin 3 of driving chip U1 passes through capacitor
It is grounded after C14 and resistance R14 series connection, the cathode of the other end connection diode D6 of the resistance R5, the anode point of diode D6
Not Lian Jie transformer T1 secondary coil Same Name of Ends and R12 one end, the secondary coil of transformer T1 different name end ground connection, become
The different name end of the primary coil of depressor T1 is separately connected the drain electrode of the anode and metal-oxide-semiconductor Q1 of diode D8, the primary of transformer T1
The Same Name of Ends of coil is separately connected the cathode of electrolytic capacitor C10 and the negative input of the LED, the other end point of resistance R12
Not Lian Jie the one end resistance R13 and driving chip U1 pin 4, the other end ground connection of resistance R13, the pin 6 of driving chip U1 divides
Not Lian Jie resistance R15 one end and diode D7 cathode, resistance R15 the other end connection metal-oxide-semiconductor Q1 grid, diode D7's
Anode connects one end of R16, and the other end of resistance R16 is separately connected the grid of metal-oxide-semiconductor Q1 and one end of resistance R17, resistance R17
The other end connection source electrode of metal-oxide-semiconductor Q1, resistance R19 one end；5 input voltage of pin of the driving chip U1 reaches unlatching
The pin 6 of threshold values, the driving chip exports high level；5 input voltage of pin of the driving chip U1, which is lower than, opens threshold values,
The pin 6 of the driving chip exports low level；
The fuse, rectifier bridge, π type filter circuit and output circuit include fuse F1, fuse F2, fuse F3 and melt
Disconnected device F4, capacitor C8, capacitor C9 and capacitor C11, electrolytic capacitor C10, inductance L5 are rectifier diode D1, rectifier diode D2, whole
Diode D3 and rectifier diode D4 and resistance R6 is flowed, two firewire input terminals of the LED drive circuit pass through fusing respectively
Connect one end of capacitor C1 after device F1 and fuse F2, two zero curve input terminals pass through respectively fuse F3 and fuse F4 it
The other end of capacitor C1, one end of one end connection capacitor C1 of inductance L1 are connected afterwards, and the other end of inductance L1 connects common mode inductance
An input terminal of L2, the output end of the corresponding input terminal are separately connected the anode and rectifier diode D2 of rectifier diode D1
Cathode, another input terminal of the other end connection common mode inductance L2 of capacitor C1, the output end of the corresponding input terminal are separately connected
The cathode of the anode of rectifier diode D3 and the cathode of rectifier diode D4, rectifier diode D1 and rectifier diode D3 connect respectively
One end of capacitor C8 and one end of inductance L5 are connect, the plus earth of rectifier diode D2 and rectifier diode D4, inductance L5's is another
One end is separately connected one end of capacitor C9 and the anode of LED, the other end ground connection of capacitor C8 and capacitor C9, the electrolytic capacitor
One end of the anode of C10, capacitor C11 and resistance R6 are separately connected the anode of LED, the cathode of the electrolytic capacitor C10, capacitor
The other end of C11 and resistance R6 are separately connected the cathode of LED, and the first of the second end connection common mode inductance L2 of the capacitor C2 is defeated
Outlet, an input terminal of the first end connection rectifier DB1 of capacitor C2, the of the second end connection common mode inductance L2 of capacitor C3
Two output ends, another input terminal of the first end connection rectifier DB1 of inductance C3, two poles of anode connection rectification of thyristor Q4
The cathode of pipe D3.
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| CN201610071433.5A CN105636273B (en) | 2016-02-01 | 2016-02-01 | A kind of LED drive circuit of compatible electronic rectifier and alternating current |
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| CN201610071433.5A CN105636273B (en) | 2016-02-01 | 2016-02-01 | A kind of LED drive circuit of compatible electronic rectifier and alternating current |
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| CN105636273A CN105636273A (en) | 2016-06-01 |
| CN105636273B true CN105636273B (en) | 2019-06-07 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106231736B (en) * | 2016-09-12 | 2018-04-06 | 深圳市豪恩光电照明股份有限公司 | A kind of LED lamp tube power driving circuit |
| CN106385733B (en) * | 2016-10-13 | 2018-02-27 | 厦门阳光恩耐照明有限公司 | The LED daylight lamp drive circuit of compatible electronic formula, inductance type and alternating current |
| CN106793265B (en) * | 2016-12-02 | 2019-01-25 | 晨辉光宝科技有限公司 | LED drive circuit and LED lamp tube |
| CN108347809A (en) * | 2018-04-13 | 2018-07-31 | 深圳市豪恩智能物联股份有限公司 | A kind of LED drive circuit of compatible electronic ballast |
| CN110662324A (en) * | 2018-06-28 | 2020-01-07 | 朗德万斯公司 | Driver and lighting module |
| CN113194573B (en) * | 2021-04-20 | 2022-09-13 | 深圳市豪恩智能物联股份有限公司 | Light source driving circuit, light source driving device and lamp |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102355780A (en) * | 2011-09-23 | 2012-02-15 | 浙江世明光学科技有限公司 | LED (light-emitting diode) tube and drive circuit thereof |
| CN102932997A (en) * | 2012-11-09 | 2013-02-13 | 浙江恒曼光电科技有限公司 | LED (light-emitting diode) fluorescent lamp drive circuit and LED lamp tube |
| CN203596948U (en) * | 2013-10-30 | 2014-05-14 | 浙江晨辉光宝科技有限公司 | LED driving circuit with compatible electronic ballast |
| CN203851335U (en) * | 2014-05-09 | 2014-09-24 | 深圳市金鹏力电源科技有限公司 | Isolation compatible drive power supply |
| CN204291454U (en) * | 2014-11-21 | 2015-04-22 | 浙江晨辉照明有限公司 | LED lamp tube power driving circuit and LED lamp tube |
| CN104640322A (en) * | 2015-02-06 | 2015-05-20 | 深圳市豪恩光电照明有限公司 | LED (Light Emitting Diode) lamp tube driver compatible with electronic ballast |
| CN204741593U (en) * | 2015-06-03 | 2015-11-04 | 佛山电器照明股份有限公司 | LED drive circuit of compatible sub - ballast of high frequency electric and low frequency input |
| CN205491311U (en) * | 2016-02-01 | 2016-08-17 | 深圳市豪恩光电照明股份有限公司 | LED drive circuit of compatible electronic rectifier and commercial power |
-
2016
- 2016-02-01 CN CN201610071433.5A patent/CN105636273B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102355780A (en) * | 2011-09-23 | 2012-02-15 | 浙江世明光学科技有限公司 | LED (light-emitting diode) tube and drive circuit thereof |
| CN102932997A (en) * | 2012-11-09 | 2013-02-13 | 浙江恒曼光电科技有限公司 | LED (light-emitting diode) fluorescent lamp drive circuit and LED lamp tube |
| CN203596948U (en) * | 2013-10-30 | 2014-05-14 | 浙江晨辉光宝科技有限公司 | LED driving circuit with compatible electronic ballast |
| CN203851335U (en) * | 2014-05-09 | 2014-09-24 | 深圳市金鹏力电源科技有限公司 | Isolation compatible drive power supply |
| CN204291454U (en) * | 2014-11-21 | 2015-04-22 | 浙江晨辉照明有限公司 | LED lamp tube power driving circuit and LED lamp tube |
| CN104640322A (en) * | 2015-02-06 | 2015-05-20 | 深圳市豪恩光电照明有限公司 | LED (Light Emitting Diode) lamp tube driver compatible with electronic ballast |
| CN204741593U (en) * | 2015-06-03 | 2015-11-04 | 佛山电器照明股份有限公司 | LED drive circuit of compatible sub - ballast of high frequency electric and low frequency input |
| CN205491311U (en) * | 2016-02-01 | 2016-08-17 | 深圳市豪恩光电照明股份有限公司 | LED drive circuit of compatible electronic rectifier and commercial power |
Non-Patent Citations (1)
| Title |
|---|
| 非隔离SY5839高APFC 50瓦驱动过EMC;aalele;《电子发烧友论坛》;20151130;第1页，附图1 |
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| CN105636273A (en) | 2016-06-01 |
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Address after: 518109 Longhua New District, Shenzhen, Guangdong, Da wave Street Da wave office, Tong Sheng Industrial Park Road, Horne Science Park, building A two floor, C area, middle and southern section of B District Applicant after: Shenzhen haoen intelligent joint Limited by Share Ltd Address before: 518109 Longhua New District, Shenzhen, Guangdong, Da wave Street Da wave office, Tong Sheng Industrial Park Road, Horne Science Park, building A two floor, C area, middle and southern section of B District Applicant before: SHENZHEN HORN PHOTOELECTRIC LIGHTING CO., LTD. |
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Effective date of registration: 20210402 Address after: 516000 Dayawan West District, Huizhou City, Guangdong Province Patentee after: Huizhou haoen intelligent Internet of things Co.,Ltd. Address before: 518109 Longhua New District, Shenzhen, Guangdong, Da wave Street Da wave office, Tong Sheng Industrial Park Road, Horne Science Park, building A two floor, C area, middle and southern section of B District Patentee before: LONGHORN LIGHTING Co.,Ltd. |