CN203301828U

CN203301828U - Electronic circuit of high reliable energy saving lamp

Info

Publication number: CN203301828U
Application number: CN2013203759363U
Authority: CN
Inventors: 黄月华
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-06-27
Filing date: 2013-06-27
Publication date: 2013-11-20
Anticipated expiration: 2023-06-27

Abstract

The utility model discloses an electronic circuit of a high reliable energy saving lamp. The electronic circuit is characterized by comprising a 220 V AC power supply, a full bridge rectification circuit, a voltage feed half-bridge inverter circuit, a starting circuit, a resonance circuit connected in series and a fluorescent lamp H. In the voltage feed half-bridge inverter circuit, 2CS13005 is employed by NPN transistors VT2 and VT2. In recent years, the share of energy saving lamps in light fixture products is bigger and bigger, and the energy saving lamps is one of the development directions for replacing incandescent lamps. Because there are many manufacturers, qualities of the energy saving lamps are uneven, many products are often scrapped after being used for a short time, it is really not environmentally friendly if throw away the scrapped energy saving lamps. On the basis of ubiquitous practical problems of the present energy saving lamps, such as short serving life and energy conservation without money conservation and the like, the electronic circuit of the high reliable energy saving lamp achieves the objects for energy conservation, money conservation and environmental protection by adopting ordinary components and optimized design.

Description

Highly reliable energy-saving lamp electronic circuit

Technical field

The utility model belongs to electronics and lighting technical field, relates to a kind of highly reliable energy-saving lamp electronic circuit.

Background technology

The characteristics of electricity-saving lamp are energy-efficient, and in recent years, electricity-saving lamp shared share in the light fixture product is increasing, are one of developing direction that replaces by incandescent lamp.Because manufacturer is numerous, the quality of electricity-saving lamp product is also uneven, if normally use the electricity-saving lamp of a reliable in quality, life-span should be able to reach the 10000h left and right, but many products often do not use and how long have just scrapped,, if at this moment just the electricity-saving lamp of scrapping is abandoned, really run counter to environmental protection.

The practical problem such as do not save money that the utility model is short, energy-conservation according to existing electricity-saving lamp ubiquity useful life, by using common components and parts and optimal design, that highly reliable energy-saving lamp electronic circuit described in the utility model has been realized is energy-conservation, cut down expenses, the purpose of environmental protection.

Below describe highly reliable energy-saving lamp electronic circuit described in the utility model related relevant technologies content in implementation process in detail.

The utility model content

Goal of the invention and beneficial effect: in recent years, electricity-saving lamp shared share in the light fixture product is increasing, is one of developing direction that replaces by incandescent lamp.Because manufacturer is numerous, the quality of electricity-saving lamp product is also uneven, and many products often do not use and how long just scrapped, and, if at this moment just the electricity-saving lamp of scrapping is abandoned, really run counter to environmental protection.The practical problem such as do not save money that the utility model is short, energy-conservation according to existing electricity-saving lamp ubiquity useful life, by using common components and parts and optimal design, that highly reliable energy-saving lamp electronic circuit described in the utility model has been realized is energy-conservation, cut down expenses, the purpose of environmental protection.

circuit working principle: although on present market, the electricity-saving lamp product category is a lot, but basic principle is identical, circuit by improved operation principle is: in circuit, AC power 220V is through over commutation, filtering produces the direct voltage of nearly 300V, when switch on due to capacitor C4 two ends this moment, initial voltage is zero, nearly 300V voltage just is added in the c-e knot two ends of NPN transistor VT2, and by resistance R 4, make the rapid conducting of NPN transistor VT2, formed thus supply voltage to capacitor C 5, capacitor C 6 charge circuits, the electric current of inductance coil L1 and high frequency transformer winding T3 of flowing through simultaneously increases gradually, and at high frequency transformer winding T1 and winding T2, give simultaneously capacitor C 2 reverse chargings, the consequently saturated and conducting of NPN transistor VT2, NPN transistor VT1 oppositely ends, when the magnetic core of high frequency transformer reaches capacity, high frequency transformer winding T1, winding T2 induced electromotive force disappears, along with the electric current that flows through winding T3 starts to reduce, high frequency transformer winding T1, winding T2 induced electromotive force polarity generation paraphase changes, capacitor C 2, capacitor C 3 starts discharge makes NPN transistor VT2 cut-off, NPN transistor VT1 conducting, and make capacitor C 5, capacitor C 6 forms the discharge loop opposite with front direction.Go down thus, NPN transistor VT1, NPN transistor VT2 go round and begin again rotation conducting and cut-off, formed high-frequency current is constantly by fluorescent lamp H filament two ends, through several all after dates, fluorescent lamp H filament two ends are heated, start gas in electron emission bombardment fluorescent tube and make the two ends conducting, the lamp tube ends internal resistance sharply descends, thereby makes fluorescent lamp H luminous.

Technical scheme: highly reliable energy-saving lamp electronic circuit, it comprises 220V AC power, full bridge rectifier, voltage feed semi-bridge type inverter circuit, start-up circuit, series resonant circuit and fluorescent lamp H, it is characterized in that:

the anodal VCC of the collector electrode connection circuit of voltage feed semi-bridge type inverter circuit: NPN transistor VT1, the base stage of NPN transistor VT1 connects the Same Name of Ends of high frequency transformer winding T1 by resistance R 1, the different name end of high frequency transformer winding T1 connects the emitter of NPN transistor VT1 by capacitor C 2, the negative pole of silicon rectifier diode D5 connects the base stage of NPN transistor VT1, the positive pole of silicon rectifier diode D5 connects the emitter of NPN transistor VT1 by resistance R 3, the base stage of NPN transistor VT2 connects the different name end of high frequency transformer winding T2 by resistance R 2, the Same Name of Ends of high frequency transformer winding T2 connects the emitter of NPN transistor VT2 by capacitor C 3, the negative pole of silicon rectifier diode D6 connects the base stage of NPN transistor VT2, the positive pole of silicon rectifier diode D6 connects the emitter of NPN transistor VT2 by resistance R 5, the emitter of one termination NPN transistor VT1 of resistance R 4, the base stage of another termination NPN transistor VT2 of resistance R 4, the emitter of the termination NPN transistor VT1 of the same name of high frequency transformer winding T3, the different name termination series resonant circuit of high frequency transformer winding T3, the model that NPN transistor VT1～VT2 selects is 2CS13005,

Start-up circuit: it is comprised of resistance R 6 and capacitor C 4, the anodal VCC of a termination circuit of an end of resistance R 6 and capacitor C 4, the emitter of another termination NPN transistor VT2 of the other end of resistance R 6 and capacitor C 4 and the collector electrode of NPN transistor VT2;

Series resonant circuit: it is comprised of high frequency transformer winding T3, inductance coil L1, fluorescent lamp H, capacitor C 5 and capacitor C 6, the emitter of the termination NPN transistor VT1 of the same name of high frequency transformer winding T3, the different name end of high frequency transformer winding T3 connects the end of fluorescent lamp H filament DS2 by inductance coil L1, the other end of fluorescent lamp H filament DS2 connects the end of fluorescent lamp H filament DS1 by capacitor C 6, the other end of fluorescent lamp H filament DS1 is by the anodal VCC of capacitor C 5 connection circuits.

Full bridge rectifier: it is connected into full bridge rectifier by 4 silicon rectifier diode D1～D4, the live wire end L of 220V AC power and the zero line side N of 220V AC power are connected on respectively the alternating current input of full bridge rectifier, the anodal VCC of the anodal connection circuit of full bridge rectifier DC output end, full bridge rectifier negative pole of output end connection circuit ground GND.

Description of drawings

Accompanying drawing 1 is embodiment circuit working schematic diagram of highly reliable energy-saving lamp electronic circuit that the utility model provides.

Embodiment

According to highly reliable energy-saving lamp electronic line work schematic diagram and the description of drawings shown in accompanying drawing 1, and according to annexation between components and parts in the described each several part circuit of utility model content, and the components and parts technical parameter described in execution mode requires and the circuit production main points are implemented to realize the utility model, below in conjunction with embodiment, correlation technique of the present utility model is further described.

The selection of components and parts and technical parameter thereof

It is the 1N4007 silicon rectifier diode that D1～D6 selects 6 models;

VT1, VT2 are NPN transistor, and the model of selecting is 2CS13005, require current amplification factor β value 20～25, BVceo 〉=35OV, or select the high-power high back-pressure NPN transistor such as 2SC3093;

Resistance all uses metalfilmresistor, and the resistance of resistance R 1～R3 and resistance R 5 is 15 Ω, and the resistance of resistance R 4 and resistance R 6 is 510K Ω;

C1 is electrochemical capacitor, and its capacity is 4.7 μ F/450V; Electrochemical capacitor C2～C3 capacity is 2.2 μ F/50V; The capacity of capacitor C 4 is 2200PF/400V, and the capacity of capacitor C 5 is 0.033 μ F/400V; The capacity of capacitor C 6 is 2200PF/630V;

Circuit production main points, circuit debugging and use

Form series resonant circuit by capacitor C 6 and inductance L 1 in circuit, while starting the starter fluorescent tube, produce one at the two ends of capacitor C 6 and double loop high-voltage (near 600V), in the bombardment fluorescent tube, gas makes its starter.Until fluorescent lamp H internal gas puncture, after the bright combustion of fluorescent lamp H, the lamp tube ends internal resistance sharply descends.The voltage at capacitor C 6 two ends significantly is down to 80V, and is normally luminous to keep fluorescent lamp H.Capacitor C 6 is one of important devices in the resonant circuit of bright combustion fluorescent lamp H, in case capacitor C 6 punctures or opens a way, gently cause fluorescent lamp H not work, heavy cause large tracts of land components and parts in circuit to burn out, so the withstand voltage and quality of capacitor C 6, determined that directly can electricity-saving lamp work for a long time;

The making of high frequency transformer T: on the ferrite bead of external diameter 10mm * internal diameter 6mm * high 7mm, it is the high strength enamelled wire coiling of 0.27mm with diameter, armature winding T1, armature winding T2 are all around 4 circles, and secondary winding T3, around 2 circles, notes the sign of each Motor Winding Same Name of Ends;

Inductance coil L1 uses the EE28 magnetic core, with diameter 0.3mm enamelled wire around 110 circles, for preventing the magnetic saturation phenomenon, the scraps of paper that the gap of magnetic core should the pad suitable thickness;

If circuit can not starting of oscillation, carefully check circuit has error-free weldering, solder skip or rosin joint; And then whether the performance that checks respectively NPN transistor VT1, NPN transistor VT2 is good, and whether the phase place of each winding of high frequency transformer is correct;

After upper which floor scraps of paper of inductance coil L1 magnetic core gap pad, the brightness that examines fluorescent lamp H changes, and repeatedly adjusts several times,, until fluorescent lamp H brightness reaches satisfied, uses finally epoxy glue bonding in case loosening;

The alternating current voltage accommodation of highly reliable energy-saving lamp electronic circuit: 160～245V.

Claims

1. highly reliable energy-saving lamp electronic circuit, it comprises 220V AC power, full bridge rectifier, voltage feed semi-bridge type inverter circuit, start-up circuit, series resonant circuit and fluorescent lamp H, it is characterized in that:

in described voltage feed semi-bridge type inverter circuit, the anodal VCC of the collector electrode connection circuit of NPN transistor VT1, the base stage of NPN transistor VT1 connects the Same Name of Ends of high frequency transformer winding T1 by resistance R 1, the different name end of high frequency transformer winding T1 connects the emitter of NPN transistor VT1 by capacitor C 2, the negative pole of silicon rectifier diode D5 connects the base stage of NPN transistor VT1, the positive pole of silicon rectifier diode D5 connects the emitter of NPN transistor VT1 by resistance R 3, the base stage of NPN transistor VT2 connects the different name end of high frequency transformer winding T2 by resistance R 2, the Same Name of Ends of high frequency transformer winding T2 connects the emitter of NPN transistor VT2 by capacitor C 3, the negative pole of silicon rectifier diode D6 connects the base stage of NPN transistor VT2, the positive pole of silicon rectifier diode D6 connects the emitter of NPN transistor VT2 by resistance R 5, the emitter of one termination NPN transistor VT1 of resistance R 4, the base stage of another termination NPN transistor VT2 of resistance R 4, the emitter of the termination NPN transistor VT1 of the same name of high frequency transformer winding T3, the different name termination series resonant circuit of high frequency transformer winding T3, the model that NPN transistor VT1～VT2 selects is 2CS13005,

Described start-up circuit is comprised of resistance R 6 and capacitor C 4, the anodal VCC of a termination circuit of an end of resistance R 6 and capacitor C 4, the emitter of another termination NPN transistor VT2 of the other end of resistance R 6 and capacitor C 4 and the collector electrode of NPN transistor VT2;

Described series resonant circuit is comprised of high frequency transformer winding T3, inductance coil L1, fluorescent lamp H, capacitor C 5 and capacitor C 6, the emitter of the termination NPN transistor VT1 of the same name of high frequency transformer winding T3, the different name end of high frequency transformer winding T3 connects the end of fluorescent lamp H filament DS2 by inductance coil L1, the other end of fluorescent lamp H filament DS2 connects the end of fluorescent lamp H filament DS1 by capacitor C 6, the other end of fluorescent lamp H filament DS1 is by the anodal VCC of capacitor C 5 connection circuits.

2. highly reliable energy-saving lamp electronic circuit according to claim 1, it is characterized in that: full bridge rectifier is connected into full bridge rectifier by 4 silicon rectifier diode D1～D4, the live wire end L of 220V AC power and the zero line side N of 220V AC power are connected on respectively the alternating current input of full bridge rectifier, the anodal VCC of the anodal connection circuit of full bridge rectifier DC output end, full bridge rectifier negative pole of output end connection circuit ground GND.