CN2190394Y - High voltage DC initiator for neon - Google Patents
High voltage DC initiator for neon Download PDFInfo
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- CN2190394Y CN2190394Y CN 94209007 CN94209007U CN2190394Y CN 2190394 Y CN2190394 Y CN 2190394Y CN 94209007 CN94209007 CN 94209007 CN 94209007 U CN94209007 U CN 94209007U CN 2190394 Y CN2190394 Y CN 2190394Y
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Abstract
The utility model relates to a high voltage DC glow starter for neon lamps, which is composed of a rectifying filter circuit, a trigger circuit, a high frequency oscillation switching circuit, a boosting circuit and a high-voltage rectification circuit, wherein, the rectifying filter circuit is used for converting 220V AC voltage into DC voltage which is provided for the trigger circuit, the trigger circuit generates saw-tooth pulses to make the high frequency oscillation switching circuit switched on and switched off, and the pulse high voltage generated by a boosting circuit is rectified by the high-voltage rectifying circuit and high voltage DC is output to start a neon lamp. The utility model can improve the work efficiency and the output power and increase the load capacity, and the utility model has the advantages of small external irradiation, low circuit consumption, small size, low power consumption, etc.
Description
The utility model relates to a kind of tube starting device, especially relates to a kind of neon light high voltage direct current starter.
Cored magnetic-leakage type gas tube sign transformer of existing gas tube sign transformer and electronic type gas tube sign transformer, they all are neon light starter devices, and wherein the magnetic flux leakage-type transformer power factor is low, and consumed power is big, volume is big and benzene heavy.Volume is little though the electronic type transformer has, the power consumptive province, be convenient to advantage such as installation, owing to be to adopt high frequency voltage pulse output, it is big to external radiation, and line loss is also high, and is inconvenient in actual applications.
The purpose of this utility model is to overcome above deficiency, and a kind of neon light starter that adopts high voltage direct current output is provided.
The purpose of this utility model is achieved in that the utility model is made up of current rectifying and wave filtering circuit, circuits for triggering, higher-order of oscillation switching circuit, booster circuit and high-voltage rectifier, the two ends of the secondary coil of the step-up transformer in the booster circuit connect two inputs of high-voltage rectifier, and two outputs of high-voltage rectifier are added in the two ends of neon light.
High-voltage rectifier can be a kind of in half-wave rectifier, full-wave rectifier, bridge rectifier and the voltage-doubler rectifier.
The utlity model has, advantages such as line loss low, high efficiency, power output big, carrying load ability strong, volume little, power consumption low little to external radiation.
Fig. 1 is a circuit block diagram of the present utility model.
Fig. 2 is circuit theory diagrams of the present utility model.
Below in conjunction with embodiment and contrast accompanying drawing the utility model is described in further detail.
The utility model is made up of current rectifying and wave filtering circuit 1, circuits for triggering 2, higher-order of oscillation switching circuit 3, booster circuit 4 and high-voltage rectifier 5.The civil power of 220V provides direct voltage for circuits for triggering 2 after current rectifying and wave filtering circuit 1 rectification, filtering, it is that sawtooth pulse is transferred to higher-order of oscillation switching circuit 3 that circuits for triggering 2 produce triggering signal, higher-order of oscillation switching circuit 3 conducting under the effect of triggering signal, close, the boost high voltage pulse that produces of booster circuit 4 is exported high voltage direct current and is added in neon light L two ends, starter neon light L after high-voltage rectifier 5 rectifications.
Current rectifying and wave filtering circuit 1 is made up of whole device ZL1 of bridge-type and capacitor C 1, and capacitor C 1 is a polar capacitor.The civil power of 220V is added on two inputs of bridge rectifier ZL1, and the two poles of the earth of capacitor C 1 are connected in parallel between two outputs of bridge rectifier ZL1.
Circuits for triggering 2 are made up of resistance R 1, capacitor C 2 and diac D.In parallel with capacitor C 1 after resistance R 1, capacitor C 2 series connection, the public interface of the input of diac D and resistance R 1, capacitor C 2 links, the base stage of the triode BG2 in the output termination higher-order of oscillation switching circuit 3.
Higher-order of oscillation switching circuit 3 comprises two triode BG1, BG2, two resistance R 2, R3,3, three inductance L 1 of 1 capacitor C, L2, L3.Connect the output of diac D and the base stage of triode BG2 after wherein an end of inductance L 2 is connected with resistance R 3, the emitter of the other end of inductance L 2 and triode BG2, one end of capacitor C 2 is connected on the negative pole of capacitor C 1 after connecting, the emitter of the collector electrode of triode BG2 and triode BG1, one end of inductance L 1 links, the base stage that connects triode BG1 after the other end of inductance L 1 is connected with resistance R 2, one end of the collector electrode of triode BG1 and resistance R 1, the positive pole of capacitor C 1 links, capacitor C 3 is connected in parallel between the collector and emitter of triode BG1, one end of inductance L 3 and the emitter of triode BG1, the collector electrode of triode BG2, one end of capacitor C 3, the public point of one end of inductance L 1 links, and the other end of inductance L 3 is connected on the end of the primary coil L4 of the step-up transformer B in the booster circuit 4.Higher-order of oscillation switching circuit 3 is a class D switching circuit, and wherein capacitor C 3 is a speed-up capacitor, and inductance L 1, L2, L3 constitute a feedback transformer on same magnet ring.
High-voltage rectifier 5 is high-voltage rectifier ZL2.The two ends of two inputs of high-voltage rectifier ZL2 and the secondary coil L5 of step-up transformer B link, and two outputs of high-voltage rectifier ZL2 are added in the two ends of neon light L.
The civil power of 220V is through bridge rectifier ZL1 rectification, direct voltage of output after capacitor C 1 filtering, offer circuits for triggering 2, resistance R 1 in the circuits for triggering 2, capacitor C 2, diac D produces the base stage that sawtooth pulse is transferred to triode BG2, impel the BG2 conducting, in inductance L 1, L2, under the feedback effect of L3, triode BG1, BG2 takes turns conducting, thereby make primary coil L4 and capacitor C 4 among the step-up transformer B that resonance take place, be coupled to the secondary coil L5 among the step-up transformer B, produce high voltage pulse, the output high voltage direct current is added in neon light L two ends, starter neon light L after high-voltage rectifier ZL2 rectification again.
Wherein:
The running parameter of high-voltage rectifier requires operating frequency greater than 100KHZ, and withstand voltage greater than 20KV, rectified current should be not less than 10mA.
BG1, BG2 are NPN type large power triode, adopt BU406; D adopts DB3.
Claims (2)
1, a kind of neon light high voltage direct current starter, comprise current rectifying and wave filtering circuit (1), circuits for triggering (2), higher-order of oscillation switching circuit (3), booster circuit (4), it is characterized in that: the two ends of the secondary coil (L5) of step-up transformer (B) connect two inputs of high-voltage rectifier (ZL2), and two outputs of high-voltage rectifier (ZL2) are added in the two ends of neon light (L).
2, neon light high voltage direct current starter as claimed in claim 1 is characterized in that: described high-voltage rectifier (ZL2) can be a kind of in half-wave rectifier, full-wave rectifier, bridge rectifier and the voltage-doubler rectifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94209007 CN2190394Y (en) | 1994-04-13 | 1994-04-13 | High voltage DC initiator for neon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94209007 CN2190394Y (en) | 1994-04-13 | 1994-04-13 | High voltage DC initiator for neon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2190394Y true CN2190394Y (en) | 1995-02-22 |
Family
ID=33826832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94209007 Expired - Fee Related CN2190394Y (en) | 1994-04-13 | 1994-04-13 | High voltage DC initiator for neon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2190394Y (en) |
-
1994
- 1994-04-13 CN CN 94209007 patent/CN2190394Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |