CN203072236U - Novel energy saving electrodeless lamp driving circuit - Google Patents
Novel energy saving electrodeless lamp driving circuit Download PDFInfo
- Publication number
- CN203072236U CN203072236U CN 201220589697 CN201220589697U CN203072236U CN 203072236 U CN203072236 U CN 203072236U CN 201220589697 CN201220589697 CN 201220589697 CN 201220589697 U CN201220589697 U CN 201220589697U CN 203072236 U CN203072236 U CN 203072236U
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- electrodeless lamp
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Abstract
The utility model discloses a novel energy saving electrodeless lamp driving circuit, which is characterized in that the electrodeless lamp small and medium-sized power driving circuit with stable operation which is driven by using a transistor and has over-current over-voltage abnormal protection function, the energy saving electrodeless lamp driving circuit is composed of a rectifier filter circuit, a power factor correcting circuit, a driving control circuit, an abnormal protection circuit and a power output circuit.
Description
Technical field
The utility model relates to electrodeless lamp lighting technical field, refers to the electrodeless lamp drive circuit of a kind of novel energy-conserving especially.
Background technology
Electrodeless lamp is made up of radio-frequency generator, coupler and bulb three parts.It is that electromagnetic field by radio-frequency generator is coupled in the lamp in the mode of induction, make the gas avalanche ionization in the bulb, form plasma, the plasma-excited atom gives off ultraviolet ray when returning ground state, the fluorescent material of bulb inner wall is subjected to ultraviolet ray excited generation visible light, electrodeless lamp adopts no filament triggering mode, has overcome traditional energy-saving lamp owing to the fluorescent tube that the electrode sputter causes turns black, the electrode sputter material exhausts the problems such as environmental pollution that life-span and electrode sputter material cause that influence.
Electrodeless lamp its specific structure and performance, drive circuit is had higher requirement, existing electrodeless lamp drive circuit, adopt field effect transistor half-bridge driven mode, field effect transistor unloaded, fluorescent tube comes off or the situation of breaking under, can enter the capacitive mode of operation, produce very big loss or lost efficacy because of overheated, when serious even can initiation fire danger.
Summary of the invention
The electrodeless lamp drive circuit of a kind of novel energy-conserving of the utility model is characterized in that at above-mentioned deficiency, the electrodeless lamp middle low power drive circuit with overcurrent-overvoltage abnormity protection function that a kind of working stability is provided, utilizes triode to drive.
To achieve these goals; technical solution of the present utility model is: the electrodeless lamp drive circuit of a kind of novel energy-conserving is made up of current rectifying and wave filtering circuit, circuit of power factor correction, Drive and Control Circuit, abnormity protection circuit and power output circuit; external ac power source is converted into DC power supply through current rectifying and wave filtering circuit; direct current connects Drive and Control Circuit, abnormity protection circuit and power output circuit again behind circuit of power factor correction, to electrodeless lamp acting.
Described current rectifying and wave filtering circuit is made of piezo-resistance RV, common mode inductance L1, inductance L 2 and L3, capacitor C 1～C4 and C8 and rectifier bridge BRIDGE.
Described circuit of power factor correction is made of integrated IC1, Industrial Frequency Transformer T1, resistance R 1～R11, capacitor C 5～C13, diode D1, D3 and D4, field effect transistor Q1 and voltage-stabiliser tube D2, and has voltage stabilizing function.
Described Drive and Control Circuit is made of integrated IC2, resistance R 12～R17, capacitor C 14 and C19, diode D5, voltage-stabiliser tube D6 and Industrial Frequency Transformer T2, has the over-current over-voltage protection function.
Described abnormity protection circuit is made of integrated IC2, resistance R 18 and R21, diode D7 and capacitor C 20, has the over-current over-voltage protection function.
The normal protective circuit of described power output circuit is made of Industrial Frequency Transformer T2, resistance R 19, R20 and R22, capacitor C 21～C24, triode Q2 and Q3, inductance L 4 and diode D8 and D9.
The beneficial effects of the utility model are: external ac power source is converted into DC power supply through current rectifying and wave filtering circuit; direct current connects Drive and Control Circuit, abnormity protection circuit and power output circuit again behind circuit of power factor correction; to electrodeless lamp acting; abnormity protection circuit obtains output voltage signal from power output circuit; be sent to Drive and Control Circuit after the processing; Drive and Control Circuit is controlled the triode of power output circuit according to the voltage signal of abnormity protection circuit output, ensures the stable operation of electroless lamp ballasting device.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Accompanying drawing 1 is the electrodeless lamp drive circuit functional-block diagram of this practical a kind of novel energy-conserving.
Accompanying drawing 2 is the circuit theory diagrams of the electrodeless lamp drive circuit of a kind of novel energy-conserving.
Among the figure: 1, current rectifying and wave filtering circuit, 2, circuit of power factor correction, 3, Drive and Control Circuit, 4, abnormity protection circuit, 5, power output circuit.
Embodiment
Shown in accompanying drawing; the electrodeless lamp drive circuit of a kind of novel energy-conserving is by current rectifying and wave filtering circuit 1; circuit of power factor correction 2; Drive and Control Circuit 3; abnormity protection circuit 4 and power output circuit 5 are formed; current rectifying and wave filtering circuit 1 is by piezo-resistance RV; common mode inductance L1; inductance L 2 and L3; capacitor C 1～C4 and C8 and rectifier bridge BRIDGE constitute; circuit of power factor correction 2 is by integrated IC1; Industrial Frequency Transformer T1; resistance R 1～R11; capacitor C 5～C13; diode D1; D3 and D4; field effect transistor Q1 and voltage-stabiliser tube D2 constitute; and has a voltage stabilizing function; Drive and Control Circuit 3 is by integrated IC2; resistance R 12～R17; capacitor C 14 and C19; diode D5; voltage-stabiliser tube D6 and Industrial Frequency Transformer T2 constitute; has the over-current over-voltage protection function; abnormity protection circuit 4 is by integrated IC2; resistance R 18 and R21; diode D7 and capacitor C 20 constitute, and power output circuit 5 circuit are by Industrial Frequency Transformer T2; resistance R 19; R20 and R22; capacitor C 21～C24; triode Q2 and Q3; inductance L 4 and diode D8 and D9 constitute.
Capacitor C 6 is with in parallel with capacitor C 7 again after resistance R 6 is connected, its two ends are connected to pin one and the pin two of integrated IC1 respectively, the pin one of integrated IC1 links to each other with the intersection point of resistance R 10 and R11, another termination power ground of resistance R 11, the pin 4 of integrated IC1 links to each other with the intersection point of capacitor C 12 with resistance R 8, the pin 5 of integrated IC1 links to each other with R4 with the secondary coil of Industrial Frequency Transformer T1, another termination power ground of secondary coil, the pin 6 of integrated IC1 connects power supply ground, pin 7 as the integrated IC1 of output is connected with the grid of field effect transistor Q1 by resistance R 7, diode D4 is in parallel with resistance R 7, the pin 8 of integrated IC1 connects power supply ground by capacitor C 10 and C11, and by series resistance R1, be connected with pin 3 behind the R3, pin 3 connects power supply ground through resistance R 2 and capacitor C 9 again, resistance R 4, capacitor C 13, diode D3 and voltage-stabiliser tube D2 constitute the power circuit of integrated IC1, capacitor C 14, diode D5 and voltage-stabiliser tube D6 constitute the power circuit of integrated IC2, pin Vcc end and the R12 of integrated IC2, C14 links to each other with the intersection point of diode D5, its Rpre, Rt, Ct and Cpre end are respectively by resistance R 14 and R15, capacitor C 16 and C17 connect power supply ground, be connected with the intersection point of resistance R 14 with the Rpre end behind its Vdc end series resistance R13, the pin Out1 of integrated IC2 is connected with the elementary two coil two ends of Industrial Frequency Transformer T2 with capacitor C 18 by resistance R 16 respectively with the Out2 end, the intersection point of the emitter of triode Q2 and triode Q3 collector electrode and the pin Hv of capacitor C 14 and integrated IC2 end link, the pin Ld end of integrated IC2 connects power supply ground by capacitor C 19, behind its over-current detection input Pro end serial connection D7 and the R21, emitter with triode Q3 is connected again, the emitter of triode Q3 connects power supply ground through resistance R 22, and the Pro end connects power supply ground by resistance R 18 and capacitor C 20, all the other pins connect power supply ground, secondary two coils of Industrial Frequency Transformer T2 link to each other with the base stage of triode Q2 and Q3 with R20 by resistance R 19 respectively, the other end of secondary two coils links to each other with the emitter of triode Q2 and Q3 respectively, the emitter of triode pipe Q2 be connected to inductance L 4 one ends after the collector electrode of triode Q3 links to each other, the other end of inductance L 4 links to each other with C24 with capacitor C 23 respectively, capacitor C 23 is connected with coupling device, and is enclosed within on the fluorescent tube Lamp.
External ac power source is converted into DC power supply through current rectifying and wave filtering circuit 1; direct current connects Drive and Control Circuit 3, abnormity protection circuit 4 and power output circuit 5 again behind circuit of power factor correction 2; to electrodeless fluorescent tube Lamp acting; abnormity protection circuit 2 obtains output voltage signal from power output circuit 5; through the input of Pro end; be sent to Drive and Control Circuit 3 after the processing; Drive and Control Circuit 3 is controlled output OUT1 end and the OUT2 end of power output circuit 5 according to the voltage signal of abnormity protection circuit 4 outputs, and electrodeless lamp driver is carried out over-current over-voltage protection.
The above; execution mode only is that preferred implementation of the present utility model is described; be not that scope of the present utility model is limited; under the prerequisite of the spirit that does not break away from the utility model technology; various distortion and improvement that this area engineers and technicians make the technical solution of the utility model all should fall in the definite protection range of claims of the present utility model.
Claims (1)
1. electrodeless lamp drive circuit of novel energy-conserving; it is characterized in that: described electrodeless lamp drive circuit is made up of current rectifying and wave filtering circuit, circuit of power factor correction, Drive and Control Circuit, abnormity protection circuit and power output circuit; external ac power source is converted into DC power supply through current rectifying and wave filtering circuit; direct current connects Drive and Control Circuit, abnormity protection circuit and power output circuit again behind circuit of power factor correction, to electrodeless lamp acting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220589697 CN203072236U (en) | 2012-11-11 | 2012-11-11 | Novel energy saving electrodeless lamp driving circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220589697 CN203072236U (en) | 2012-11-11 | 2012-11-11 | Novel energy saving electrodeless lamp driving circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203072236U true CN203072236U (en) | 2013-07-17 |
Family
ID=48770975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220589697 Expired - Fee Related CN203072236U (en) | 2012-11-11 | 2012-11-11 | Novel energy saving electrodeless lamp driving circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203072236U (en) |
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2012
- 2012-11-11 CN CN 201220589697 patent/CN203072236U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20131111 |