JPS60177497U - discharge lamp lighting device - Google Patents
discharge lamp lighting deviceInfo
- Publication number
- JPS60177497U JPS60177497U JP6530484U JP6530484U JPS60177497U JP S60177497 U JPS60177497 U JP S60177497U JP 6530484 U JP6530484 U JP 6530484U JP 6530484 U JP6530484 U JP 6530484U JP S60177497 U JPS60177497 U JP S60177497U
- Authority
- JP
- Japan
- Prior art keywords
- oscillation
- circuit
- discharge lamp
- winding
- transistor
- 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)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来例を示す回路図、第２図はこの考案の実施
例を示す回路図、第３図は同実施例における要部の出力
波形を示すもので、ａ“は巻線の出力波形図、ｂは正常
発振時のダイオードブリッジの出力波形図、Ｃは間欠発
振を起こしかけていをるときのダイオードブリッジの出
力波形図である。
１・・・商用交流電源、４・・・ブロッキング発振回路
、６・・・放電灯、１０・・・発振トランス、１１・・
・第１のコンデンサ、１２・・・共振回路、１３・・・
トランジスタ、１４・・・駆動回路、１５・・・第２の
コンデンサ、２１・・・トランジスタ、２４・・・放電
回路、２６・・・定電圧導通素子、２７・・・巻線。Fig. 1 is a circuit diagram showing a conventional example, Fig. 2 is a circuit diagram showing an embodiment of this invention, and Fig. 3 shows output waveforms of main parts in the same embodiment. Waveform diagram, b is the output waveform diagram of the diode bridge during normal oscillation, and C is the output waveform diagram of the diode bridge when intermittent oscillation is about to occur. 1...Commercial AC power supply, 4...Blocking Oscillation circuit, 6...discharge lamp, 10...oscillation transformer, 11...
・First capacitor, 12... Resonance circuit, 13...
Transistor, 14... Drive circuit, 15... Second capacitor, 21... Transistor, 24... Discharge circuit, 26... Constant voltage conduction element, 27... Winding wire.
Claims (1)
ンデンサからなる共振回路、この共振回路に直列に接続
されたトランジスタ、このトランジスタのベース、エミ
ッタ間に前記発振トランスの巻線と第２のコンデンサと
を直列的に接続した回路を有し、上記トランジスタをス
イッチング駆動する駆動回路からなり、前記直流電源に
接続されたブロッキング発振回路と、この発振回路にお
ける発振トランスの巻線に接続された放電灯と、前記第
２のコイデンサにスイッチング素子を介して並列に接続
された放電回路と、前記発振トランスに関連して巻装さ
れた巻線の出力電圧を検出して前記スイッチング素子を
制御し、その出力電圧が予め設定した所定電圧以下のと
き前記スイッチング素子のオン時間が長≦なるように制
御する手段とを具備してなることを特徴とする放電灯点
灯装置。“A resonant circuit consisting of a DC power source, a winding of an oscillation transformer, and a first capacitor, a transistor connected in series to this resonant circuit, and a connection between the base and emitter of the transistor between the winding of the oscillation transformer and the second capacitor. a blocking oscillation circuit connected to the DC power source, and a discharge lamp connected to the winding of an oscillation transformer in the oscillation circuit, the blocking oscillation circuit comprising a drive circuit that switches and drives the transistor, and a blocking oscillation circuit connected to the DC power supply; and a discharge circuit connected in parallel to the second coil capacitor via a switching element, and detecting an output voltage of a winding wound in connection with the oscillation transformer to control the switching element. 1. A discharge lamp lighting device comprising: means for controlling the on-time of the switching element to be longer or less when the output voltage is lower than a predetermined voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6530484U JPS60177497U (en) | 1984-05-02 | 1984-05-02 | discharge lamp lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6530484U JPS60177497U (en) | 1984-05-02 | 1984-05-02 | discharge lamp lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60177497U true JPS60177497U (en) | 1985-11-25 |
Family
ID=30597183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6530484U Pending JPS60177497U (en) | 1984-05-02 | 1984-05-02 | discharge lamp lighting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60177497U (en) |
-
1984
- 1984-05-02 JP JP6530484U patent/JPS60177497U/en active Pending
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