JPH0264198U - - Google Patents
Info
- Publication number
- JPH0264198U JPH0264198U JP14380088U JP14380088U JPH0264198U JP H0264198 U JPH0264198 U JP H0264198U JP 14380088 U JP14380088 U JP 14380088U JP 14380088 U JP14380088 U JP 14380088U JP H0264198 U JPH0264198 U JP H0264198U
- Authority
- JP
- Japan
- Prior art keywords
- fluorescent lamp
- preheating
- circuit
- input voltage
- lamp lighting
- 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.)
- Pending
Links
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Description
第１図は本考案の螢光灯点灯回路の一実施例を
示す回路図、第２図は熱陰極螢光灯の予熱電圧対
予熱電流特性を示す特性図である。
１，１′……電源入力端子、３……インバータ
回路、４……螢光灯、５……予熱回路、５ａ……
予熱時間設定回路、５ｂ……予熱電流出力回路。
FIG. 1 is a circuit diagram showing an embodiment of the fluorescent lamp lighting circuit of the present invention, and FIG. 2 is a characteristic diagram showing the preheating voltage versus preheating current characteristics of a hot cathode fluorescent lamp. 1, 1'...Power input terminal, 3...Inverter circuit, 4...Fluorescent lamp, 5...Preheating circuit, 5a...
Preheating time setting circuit, 5b... Preheating current output circuit.
Claims (1)
フイラメントを予熱せしめて螢光灯を点灯させる
螢光灯点灯回路に於いて、前記予熱回路により設
定される予熱時間を上記直流入力電圧の変動に応
じて制御するようにしたことを特徴とする螢光灯
点灯回路。 In a fluorescent lamp lighting circuit that preheats a filament to light a fluorescent lamp by a preheating circuit using a DC input voltage as a driving source, the preheating time set by the preheating circuit is adjusted to fluctuations in the DC input voltage. A fluorescent lamp lighting circuit characterized in that it is controlled according to the following conditions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14380088U JPH0264198U (en) | 1988-11-02 | 1988-11-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14380088U JPH0264198U (en) | 1988-11-02 | 1988-11-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0264198U true JPH0264198U (en) | 1990-05-14 |
Family
ID=31410948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14380088U Pending JPH0264198U (en) | 1988-11-02 | 1988-11-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0264198U (en) |
-
1988
- 1988-11-02 JP JP14380088U patent/JPH0264198U/ja active Pending
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