A kind of home decoration driving circuit of energy-saving lamp
Technical field
The utility model is related to lamp technical field, more particularly to a kind of home decoration driving circuit of energy-saving lamp.
Background technology
With the continuous improvement and the exhaustion of earth resource of living standards of the people, people save the continuous of consciousness to resource
Improve, to the quality requirement more and more higher of household energy saving environmental protection product, the requirement more and more higher of household dress decoration light, long-life
Electricity-saving lamp by be following home decoration lighting energy saving industry a big main flow, its not only power saving, and service life is incandescent
6 to 10 times of lamp, can save substantial amounts of illumination electric energy and expense, at present, existing home decoration electronic energy-saving lamp are generally deposited
It is not fluorescent tube in short life, complex structure, cost height, the shortcoming that power is big, light output is unstable, circuit protection function is not complete
Early stage nigrescence filament breaking, is exactly that ballast such as burns out at the phenomenon, seriously constrains the use value of electricity-saving lamp in itself.
Therefore, those skilled in the art needs that to work out a kind of simple in construction, low cost, high power factor, light defeated badly
Go out high stable and reliable for performance, power factor and whole lamp long lifespan, the home decoration electricity-saving lamp suitable for high-power energy-saving lamp drive
Circuit.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of home decoration driving circuit of energy-saving lamp, the home decoration
Driving circuit of energy-saving lamp structure is simple, low cost, suitability is strong, light output is stable and reliable for performance, power factor is high and causes whole
Lamp long lifespan, suitable for high-power energy-saving lamp.
In order to solve the above technical problems, the utility model provides a kind of home decoration driving circuit of energy-saving lamp, including it is whole
Stream filter circuit, the power starting circuit being connected with the output end of the current rectifying and wave filtering circuit and the power starting circuit
The half-bridge oscillation circuit of output end connection, the charge pump circuit being connected with the output end of the half-bridge oscillation circuit and the electricity
The electricity-saving lamp of lotus pump circuit output end connection, the current rectifying and wave filtering circuit includes diode (VD1, VD2, VD3, VD4), electric capacity
C1, the diode (VD1, VD2, VD3, VD4) constitutes the first shunt circuit, and first shunt circuit is exchanged with the 220V
Power supply is connected, and first shunt circuit is in parallel with electric capacity C1 again, and the half-bridge oscillation circuit includes integrated control module, described
Minimum power connection end, working power connection end, chip power earth terminal and the signal ground end of integrated control module and voltage-controlled
Oscillator frequency of oscillation control signal input is connected with the output end of the power starting circuit, the integrated control module bag
Include voltage-controlled oscillator, half-bridge high-end with low-end driver and self adaptation ZVT control logic controller.
Preferably, the integrated control module is IR2520D.
Preferably, the power starting circuit includes inductance L1, the inductance L1 connected with resistance R1 after with it is described integrated
The working power connection end of control module and electric capacity C5 connections, the two poles of the earth of the electric capacity C5 respectively with the integrated control module
Working power connection end and the connection of signal ground end.
Preferably, the high-end MOSDET gate control signals output end of the integrated control module, high-end MOSDET floating grounds
End, high-end MOSDET floating power supplies end and low side MOSDET are beaten control signal output and connected with the charge pump circuit input
Connect.
Preferably, the half-bridge oscillation circuit also includes power amplification field-effect transistor VT1, power amplification field-effect crystalline substance
Body pipe VT2, electric capacity C6, resistance R2 and electric capacity C4, the high-end MOSDET gate control signals output end and the power amplification
Effect transistor VT1 grid connection, the low side MOSDET gate control signals output end is brilliant with the power amplification field-effect
Body pipe VT1 grid connection, the high-end MOSDET floatings ground terminal and the power amplification field-effect transistor VT2 drain electrode and
The source electrode connection of the power amplification field-effect transistor VT1.
Preferably, the half-bridge oscillation circuit is connected by inductance L2 with the electricity-saving lamp, the electricity-saving lamp and electric capacity C8
It is in parallel.
Preferably, the charge pump circuit includes diode (VD6, VD5) and electric capacity C7, the electric capacity C7 and diode
VD6 and inductance L2 connections, the diode VD6 and the power amplification field-effect transistor VT2 source electrode, electric capacity C1 are connected.
Employ after above-mentioned drive circuit, resistance R1, electric capacity C5 together constitute power starting circuit 20, after energization,
L1 output DC voltages are charged by R1 to C5 so that on integrated control module IR2520D working power connection end
Voltage gradually rises, when the voltage exceedes certain startup threshold level, and integrated control module starts, diode (VD1,
VD2, VD3, VD4), electric capacity C1 collectively form power supply rectification filter circuit 10, integrated control module, power amplification field effect transistor
Pipe VT1, power amplification field-effect transistor VT2 and peripheral cell constitute half-bridge oscillation circuit 30, produce high frequency voltage supply section
Energy lamp, the charge pump circuit 40 includes diode (VD6, VD5) and electric capacity C7, the electric capacity C7 and diode VD6 and inductance
L2 connections, the diode VD6 and the power amplification field-effect transistor VT2 source electrode, electric capacity C1 are connected, the home decoration
Driving circuit of energy-saving lamp structure is simple, low cost, suitability is strong, light output is stable and reliable for performance, power factor is high and causes whole
Lamp long lifespan, suitable for high-power energy-saving lamp.
Brief description of the drawings
Fig. 1 is a kind of overall structure diagram of home decoration driving circuit of energy-saving lamp of the present utility model.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only used for explaining this
Utility model, is not used to limit the utility model.
Embodiment 1
Referring to Fig. 1, Fig. 1 is a kind of overall structure signal of home decoration driving circuit of energy-saving lamp of the present utility model
Figure.
The utility model discloses a kind of home decoration driving circuit of energy-saving lamp, including current rectifying and wave filtering circuit 10, with it is described
The power starting circuit 20 of the output end connection of current rectifying and wave filtering circuit 10, it is connected with the output end of the power starting circuit 20
Half-bridge oscillation circuit 30, the charge pump circuit 40 being connected with the output end of the half-bridge oscillation circuit 30 and charge pump electricity
The electricity-saving lamp of the output end connection of road 40, the current rectifying and wave filtering circuit 10 includes diode (VD1, VD2, VD3, VD4), electric capacity C1,
The diode (VD1, VD2, VD3, VD4) constitutes the first shunt circuit, first shunt circuit and the 220V alternating currents
Source is connected, and first shunt circuit is in parallel with electric capacity C1 again, and the half-bridge oscillation circuit 30 includes integrated control module, described
Minimum power connection end, working power connection end, chip power earth terminal and the signal ground end of integrated control module and voltage-controlled
Oscillator frequency of oscillation control signal input is connected with the output end of the power starting circuit 20, the integrated control module
It is high-end with low-end driver and self adaptation ZVT control logic controller including voltage-controlled oscillator, half-bridge.
In the present embodiment, the integrated control module preferably is IR2520D, in other embodiments, or
Other kinds of integrated control module.
The power starting circuit 20 includes inductance L1, the inductance L1 connected with resistance R1 after with the integrated control mould
The working power connection end of block and electric capacity C5 connections, the work electricity of the two poles of the earth of the electric capacity C5 respectively with the integrated control module
Source connection and the connection of signal ground end.
It is the high-end MOSDET gate control signals output end of the integrated control module, high-end MOSDET floatings ground terminal, high-end
MOSDET floating power supplies end and low side MOSDET are beaten control signal output and are connected with the input of charge pump circuit 40.
The half-bridge oscillation circuit 30 also includes power amplification field-effect transistor VT1, power amplification field-effect transistor
VT2, electric capacity C6, resistance R2 and electric capacity C4, the high-end MOSDET gate control signals output end and the power amplification field-effect
Transistor VT1 grid connection, the low side MOSDET gate control signals output end and the power amplification field-effect transistor
VT1 grid connection, the high-end MOSDET floatings ground terminal and the power amplification field-effect transistor VT2 drain electrode and described
Power amplification field-effect transistor VT1 source electrode connection.
The half-bridge oscillation circuit 30 is connected by inductance L2 with the electricity-saving lamp, and the electricity-saving lamp is in parallel with electric capacity C8.
The charge pump circuit 40 includes diode (VD6, VD5) and electric capacity C7, the electric capacity C7 and diode VD6 and electricity
Feel L2 connections, the diode VD6 and the power amplification field-effect transistor VT2 source electrode, electric capacity C1 are connected.
Employ after above-mentioned drive circuit, resistance R1, electric capacity C5 together constitute power starting circuit 20, after energization,
L1 output DC voltages are charged by R1 to C5 so that on integrated control module IR2520D working power connection end
Voltage gradually rises, when the voltage exceedes certain startup threshold level, and integrated control module starts, diode (VD1,
VD2, VD3, VD4), electric capacity C1 collectively form power supply rectification filter circuit 10, integrated control module, power amplification field effect transistor
Pipe VT1, power amplification field-effect transistor VT2 and peripheral cell constitute half-bridge oscillation circuit 30, produce high frequency voltage supply section
Energy lamp, the charge pump circuit 40 includes diode (VD6, VD5) and electric capacity C7, the electric capacity C7 and diode VD6 and inductance
L2 connections, the diode VD6 and the power amplification field-effect transistor VT2 source electrode, electric capacity C1 are connected, the home decoration
Driving circuit of energy-saving lamp structure is simple, low cost, suitability is strong, light output is stable and reliable for performance, power factor is high and causes whole
Lamp long lifespan, suitable for high-power energy-saving lamp.
Simultaneously, it should be appreciated that these are only preferred embodiment of the present utility model, it is impossible to therefore it is new to limit this practicality
The scope of the claims of type, equivalent structure or equivalent implementation method that every utilization the utility model specification and accompanying drawing content are made,
Or other related technical fields are directly or indirectly used in, similarly it is included in scope of patent protection of the present utility model.