JPS59115596U

JPS59115596U - discharge lamp lighting device

Info

Publication number: JPS59115596U
Application number: JP899983U
Authority: JP
Inventors: 清水　彰典
Original assignee: 明治ナシヨナル工業株式会社
Priority date: 1983-01-24
Filing date: 1983-01-24
Publication date: 1984-08-04

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 drawings]

第１図は従来例の回路図、第２図はこの考案の実施例を
示す回路図である。１・・・・・・高周波インバータ、２・・・・・・エミ
ッタ結合点、３．　４−−−−−−トランジスタ、６・
・・・・・１次コイル、８・・・・・・放電灯、１１・
・・・・・発振トランス、１２・・・・・・直流電源、
１６・・・・・・定電圧素子。補正　昭５８．　２．２５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発振トランスと、前記発振トランスの１次コイルの各端
部にコレクタが接続されてあって、交互にオン、オフさ
れる一対のトランジスタと、前記１次コイルのセンター
タップと前記両トランジスタのエミッタ結合点との間に
接続されである直流電源とからなる高周波インバータと
、前記高周波インバータの高周波出力によって点灯され
る放電灯と、前記センタータップと前記両トランジスタ
　　　　。のエミッタ結合点との間に接続されてあり、前記トラン
ジスタの耐圧の半分以下の電圧で導通する定電圧素子と
からなる放電灯点灯装置。FIG. 1 is a circuit diagram of a conventional example, and FIG. 2 is a circuit diagram showing an embodiment of this invention. 1... High frequency inverter, 2... Emitter coupling point, 3. 4-------transistor, 6.
...Primary coil, 8...Discharge lamp, 11.
...Oscillation transformer, 12...DC power supply,
16... Constant voltage element. Correction 1984. 2.25 The scope of claims for utility model registration shall be amended as follows. ◎Utility model registration Claims: an oscillating transformer, a pair of transistors whose collectors are connected to each end of a primary coil of the oscillating transformer and which are turned on and off alternately; and a center tap of the primary coil. a high-frequency inverter comprising a DC power source connected between the high-frequency inverter and the emitter coupling point of the two transistors; a discharge lamp that is lit by the high-frequency output of the high-frequency inverter; and the center tap and the two transistors. A discharge lamp lighting device comprising: a constant voltage element connected between an emitter coupling point of the transistor and conductive at a voltage less than half the withstand voltage of the transistor.

Claims

[Scope of utility model registration request]

an oscillation transformer, a pair of transistors whose collectors are connected to each end of a primary coil of the oscillation transformer and which are turned on and off alternately; and a center tap of the primary coil and an emitter coupling between the two transistors. a high-frequency inverter comprising a direct current/power supply connected between the center tap and the emitter connection point of both transistors; a discharge lamp that is lit by the high-frequency output of the high-frequency inverter; A discharge lamp lighting device comprising a constant voltage element which is conductive at a voltage equal to or more than half of the withstand voltage of the transistor.