JPS5845525U

JPS5845525U - Starting device for light emission stop circuit in flash discharge light emitting device

Info

Publication number: JPS5845525U
Application number: JP13898981U
Authority: JP
Inventors: 幸夫尾高
Original assignee: 株式会社トーカド
Priority date: 1981-09-21
Filing date: 1981-09-21
Publication date: 1983-03-26

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]

図面は本考案に係る起動装置を備えた閃光放電発光器の
回路図である。３・・・ＤＣ−ＤＣコンバータ、４・・・主放電用コン
デンサ、５・・・閃光放電管、６・・・第１スイッチン
グ部材としてのＳＣＲ，１１・・・トリガー回路起動用
スイッチング部材としてのＳＣＲ，２１・・・転流コン
デンサ、２４・・・第２スイッチング部材としてのＳＣ
Ｒ，３Ｑ・・・第１コンデンサ、３３・・・第２コンデ
ンサ、３７・・・スイッチングトランジスタ、３８・・
・フォト・トランジスタ、３９・・・積分用コンデンサ
。The drawing is a circuit diagram of a flash discharge light emitting device equipped with a starting device according to the present invention. 3... DC-DC converter, 4... Main discharge capacitor, 5... Flash discharge tube, 6... SCR as a first switching member, 11... As a switching member for starting the trigger circuit. SCR, 21... Commutation capacitor, 24... SC as second switching member
R, 3Q...first capacitor, 33...second capacitor, 37...switching transistor, 38...
・Phototransistor, 39... Integrating capacitor.

Claims

[Scope of utility model registration request]

a first switching member connected in series to the flash discharge tube;
A commutating capacitor that is charged in advance with flash light emission &
A light emitting stop circuit formed by loop-connecting a second switching member that transfers the first switching member to electrical conduction by applying a charge to the commutating capacitor by being electrically conductive;
In a flash discharge light emitting device equipped with a sensor that generates a light emission amount control signal, when a starting switching member of a trigger circuit that excites the flash discharge tube is brought into conduction, a charge is discharged through the switching member. capacitor and
A starting circuit is provided, which includes a second capacitor that is charged by the discharge of the first capacitor, and a second capacitor discharge circuit that includes a switching member and a resistor member that become conductive in response to the sensor output. The sensor output is applied to a control pole of a second switching member included in the light emission stop circuit to make the switching member conductive by applying a voltage signal generated in the discharge circuit when the charge of the second capacitor is discharged. Starting device for the light emission stop circuit.