JPS60174160U

JPS60174160U - relay control circuit

Info

Publication number: JPS60174160U
Application number: JP6278584U
Authority: JP
Inventors: 明金澤
Original assignee: 三菱電機株式会社
Priority date: 1984-04-25
Filing date: 1984-04-25
Publication date: 1985-11-18

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図は従来のリレー制御回路を示す接続図、第２図は
この考案の一実施例によｇＩＪレー制御回路を示す接続
図である。１・・・リレー、２：・・コイル、５ａ・・・リレー接
点、２１・・・トランジスタ、２２・・・抵抗、２３・
・・電源、２４・・・抵抗、２５−、−・抵抗。なお、
図中、同一符号は同一、又は相当部分を示す。補正　昭５９．１０．４実用新案登録請求の範囲を次のように補正する。Ｏ実用新案登録請求の範囲トランジスタと、このトランジスタのエミッタとアース
の間に接続された抵抗と、接点オフ時は前記トランジス
タのベースと電源の間に直列抵抗が挿入され、接点オン
時は前記トランジスタのベースに前記電源を分圧して印
加する回路を構成する二つの抵抗とリレー接点とよりな
る回路と、前記トランジスタのコレクター回路と電源の
間に設けられたリレー用コイルと電源スィッチの直列回
路とを備え、電源電圧の変化にか１わらず略一定、のリ
レー電流を維持するようにしたことを特徴とするリレー
制御回路。FIG. 1 is a connection diagram showing a conventional relay control circuit, and FIG. 2 is a connection diagram showing a gIJ relay control circuit according to an embodiment of the present invention. 1... Relay, 2:... Coil, 5a... Relay contact, 21... Transistor, 22... Resistor, 23...
...Power supply, 24...Resistance, 25-,--Resistance. In addition,
In the figures, the same reference numerals indicate the same or corresponding parts. Amendment October 4, 1982 The scope of claims for utility model registration is amended as follows. O Utility Model Registration Claims A transistor, a resistor connected between the emitter of this transistor and the ground, a series resistor inserted between the base of the transistor and the power supply when the contact is off, and a resistor connected between the transistor and the ground when the contact is on. a circuit consisting of two resistors and a relay contact constituting a circuit for applying a divided voltage of the power source to the base of the transistor; and a series circuit of a relay coil and a power switch provided between the collector circuit of the transistor and the power source. What is claimed is: 1. A relay control circuit comprising: a relay control circuit which maintains a substantially constant relay current regardless of changes in power supply voltage.

Claims

[Scope of utility model registration request]

A series resistor is inserted between a transistor, a resistor connected between the collector of this transistor and ground, and the base of the transistor and the power supply when the contact is off, and the power is distributed to the base of the transistor when the contact is on. A circuit consisting of two resistors and a relay contact constituting a circuit for applying pressure, and a series circuit of a relay coil and a power switch provided between the collector circuit of the transistor and the power supply, and a series circuit of a power supply switch. A relay control circuit characterized in that a substantially constant relay current is maintained without being influenced by changes in the current.