CN2250623Y - Electronic trigger for high voltage sodium lamp - Google Patents
Electronic trigger for high voltage sodium lamp Download PDFInfo
- Publication number
- CN2250623Y CN2250623Y CN 95246247 CN95246247U CN2250623Y CN 2250623 Y CN2250623 Y CN 2250623Y CN 95246247 CN95246247 CN 95246247 CN 95246247 U CN95246247 U CN 95246247U CN 2250623 Y CN2250623 Y CN 2250623Y
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- CN
- China
- Prior art keywords
- sodium lamp
- electronic trigger
- utility
- circuit
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an electronic trigger for a high voltage sodium lamp, a circuit of the utility model is provided with a resonance circuit composed of primary elements of a capacitor, a high frequency transformer, and a silicon controlled rectifier. A protection circuit is connected in parallel with the resonance circuit, and the protection circuit is composed of a relay, and a rectification bridge. The utility model solves the problems that in the prior art, a capacitor and a silicon controlled rectifier are easy to break down, a trigger can not work at a low voltage, etc. The utility model is an electronic trigger used on a high voltage sodium lamp.
Description
The utility model is a kind of electronic trigger that is used for high-pressure sodium lamp, particularly its circuit arrangement.
High-pressure sodium lamp electronic trigger described in the prior art 93225311 has following deficiency: 1. when external voltage produces fluctuation or electrical network when disturbing pulse occurring, be easy to electric capacity and controllable silicon are punctured; 2. during no power, because electronic trigger is connected in parallel on the electrical network, the static on the electrical network or other induced voltage reach one regularly, also electric capacity and controllable silicon can be punctured; 3. when low-voltage, can not work: 4. when electric capacity is breakdown, serious heating can occur, may cause fire.
The purpose of this utility model is to design a kind of high-pressure sodium lamp electronic trigger with protective circuit.
Circuit of the present utility model divides two parts, and first is the resonant tank that main element is formed by electric capacity, high frequency transformer, controllable silicon, can produce high voltage pulse; Another part is the protective circuit that main element is formed by relay, rectifier bridge, and protective circuit is connected in parallel on the resonant tank; Hook of the present utility model and wiring board are with epoxy encapsulation in the enclosure.
After the utility model was finished and started sodium vapor lamp, the contact of its repeat circuit discharged, and made the utility model break away from big electrical network automatically, and controllable silicon and electric capacity can not burnt out, and have protected circuit preferably; Because the contact of relay disconnects, the resonance cut-in voltage can be lower than national standard, thereby high-pressure sodium lamp also can be worked in low-voltage again.
Fig. 1: embodiment front view
Fig. 2: embodiment circuit theory diagrams
The circuit of present embodiment divides two parts, and first is by capacitor C
1, high frequency transformer HL
2, controllable silicon CTR
3Resonant tank for main element is formed can produce high voltage pulse; The protective circuit that another part is made up of for main element relay 4, rectifier bridge 5 also is provided with fuse RD in the protective circuit
5With dropping resistor R
6Protective circuit is connected in parallel on the resonant tank.Present embodiment and high-pressure sodium lamp 7 are connected in parallel on the big electrical network, after the energising, relay 4 normally open contact K
8Adhesive, resonant tank work produces high voltage pulse high-pressure sodium lamp 7 is punctured, high-pressure sodium lamp 7 work, at this moment below high-pressure sodium lamp 7 two ends pressure drop to 20 volts, relay 4 dead electricity are not worked, contact K
8Discharge, resonant element and big electrical network are separated, thereby protected present embodiment, again because contact K
8Disconnect, the resonance cut-in voltage can be done lowlyer than national standard, thus high-pressure sodium lamp 7 can be low to moderate 150 volts at voltage can also operate as normal; When capacitor C occurring
1During puncture, electric current moment increase is with fuse RD
5Blow, avoided electric capacity puncture heating to cause the phenomenon of seriously catching fire.All electric elements of present embodiment are fixed on the wiring board 10; Hook 9, wiring board 10 are sealed in the shell 12 by epoxy resin 11.
Claims (2)
1. high-pressure sodium lamp electronic trigger; having by electric capacity, high frequency transformer, controllable silicon in its circuit is the resonant tank that main element is formed; it is characterized in that: also have a protective circuit to be connected in parallel on the resonant tank, contain relay, rectifier bridge in the protective circuit.
2. high-pressure sodium lamp electronic trigger according to claim 1 is characterized in that: also be provided with fuse and dropping resistor in the protective circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95246247 CN2250623Y (en) | 1995-11-24 | 1995-11-24 | Electronic trigger for high voltage sodium lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95246247 CN2250623Y (en) | 1995-11-24 | 1995-11-24 | Electronic trigger for high voltage sodium lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2250623Y true CN2250623Y (en) | 1997-03-26 |
Family
ID=33885856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95246247 Expired - Fee Related CN2250623Y (en) | 1995-11-24 | 1995-11-24 | Electronic trigger for high voltage sodium lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2250623Y (en) |
-
1995
- 1995-11-24 CN CN 95246247 patent/CN2250623Y/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 |