JPS5841998U

JPS5841998U - Discharge lamp lighting device

Info

Publication number: JPS5841998U
Application number: JP13678681U
Authority: JP
Inventors: 幹夫高木; 中嶋　道明; 幸雄渡辺
Original assignee: 株式会社共進電機製作所
Priority date: 1981-09-14
Filing date: 1981-09-14
Publication date: 1983-03-19

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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来例を示す回路図である。第２図は本考案の
実施例を示す回路図である。１・・・・・・交に％Ｅ流、３・・・・・・インバータ
、１３・・・・・・放電灯、１４・・・・・・出カドラ
ンス、１４ａ・・・・・・主巻線、１４ｂ・・・・・・
副巻線、１５・・・・・・制御回路、１６・・・・・・
第二のトランス、１７・・・・・・スイッチングトラン
ジスタ、１８．２０・・・・・・全波整流器、３０・・
・・・・コンデンサー。補正　昭５７．　１．２５　　　　− 実用新案登録請求の範囲を次のように補正する。 ■実用新案登録請求の範囲交流電源を整流した電源により作動するトランジスタイ
ンバータの化カドランスの二次側の主巻線に放電灯を接
続し、上記放電灯のフィラメント回路に全波整流器の直
流入力端子を直列接続し、その全波整流器の直流出力端
子にスイッチングトランジスタのエミッタ・コレクタ回
路を接続し、このスイッチングトランジスタのベースを
タイマー機能を持つ制御回路の出力により制御して電源
投入後所定時間だけ上記全波整流口の出力端を導通させ
る装置において、上記スイッチングトランジスタのベー
ス回路とエミッタ回路間にコンデン　′すを接続したこ
とを特徴とする放電灯の点灯装置。FIG. 1 is a circuit diagram showing a conventional example. FIG. 2 is a circuit diagram showing an embodiment of the present invention. 1... Alternating %E current, 3... Inverter, 13... Discharge lamp, 14... Output transformer, 14a... Main Winding wire, 14b...
Sub-winding, 15...Control circuit, 16...
Second transformer, 17... Switching transistor, 18.20... Full wave rectifier, 30...
····condenser. Correction 1984. 1.25 - The scope of claims for utility model registration shall be amended as follows. ■ Scope of claims for utility model registration A discharge lamp is connected to the main winding on the secondary side of a catalytic converter of a transistor inverter operated by a power source obtained by rectifying an AC power source, and the DC input terminal of a full-wave rectifier is connected to the filament circuit of the discharge lamp. are connected in series, and the emitter-collector circuit of a switching transistor is connected to the DC output terminal of the full-wave rectifier, and the base of this switching transistor is controlled by the output of a control circuit with a timer function, so that the 1. A lighting device for a discharge lamp, characterized in that a capacitor is connected between the base circuit and the emitter circuit of the switching transistor in the device for making the output end of the full-wave rectifier conductive.

Claims

[Scope of utility model registration request]

A discharge lamp is maintained in the main winding on the secondary side of the output transformer of a transistor inverter operated by a power source obtained by rectifying AC power, and the AC input terminal of a full-wave rectifier is connected in series with the filament circuit of the discharge lamp. The emitter-collector circuit of a switching transistor is connected to the DC output terminal of the full-wave rectifier, and the base of this switching transistor is controlled by the output of a control circuit with a timer function to control the output terminal of the full-wave rectifier for a predetermined period of time after power is turned on. A lighting device for a discharge lamp, characterized in that a capacitor is connected between a base circuit and an emitter circuit of the switching transistor.