JPS60162346U

JPS60162346U - Drive circuit of polarized electromagnetic relay

Info

Publication number: JPS60162346U
Application number: JP5003684U
Authority: JP
Inventors: 辰雄小川; 川合　正典
Original assignee: 松下電工株式会社
Priority date: 1984-04-04
Filing date: 1984-04-04
Publication date: 1985-10-28

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図は本考案−実施例の回路図、第２図は同上の要部
構成図、第３図は他の実施例の回路図、第４図は従来例
の回路図である。１は有極電磁継電器、２は開閉接点、３は励磁コイル、
４は電流方向切換回路、５は負荷、６はセンサ回路、６
ａは出力接点、７は駆動回路、Ｃ□、Ｃ２はコンデンサ
、Ｄ１〜Ｄ４はダイオード、５ＣＲ１，５ＣＲ２はサイ
リスタである。FIG. 1 is a circuit diagram of an embodiment of the present invention, FIG. 2 is a block diagram of the same essential parts, FIG. 3 is a circuit diagram of another embodiment, and FIG. 4 is a circuit diagram of a conventional example. 1 is a polarized electromagnetic relay, 2 is a switching contact, 3 is an exciting coil,
4 is a current direction switching circuit, 5 is a load, 6 is a sensor circuit, 6
a is an output contact, 7 is a drive circuit, C□ and C2 are capacitors, D1 to D4 are diodes, and 5CR1 and 5CR2 are thyristors.

Claims

[Scope of utility model registration request]

A switching contact that turns on and off the load circuit, a latching means that latches the driven switching contact that drives the switching contact in a predetermined direction based on the direction of the current flowing through the excitation coil, and a current that can flow to the exciting coil in conjunction with the switching contact. In a drive circuit for a polarized electromagnetic relay that generates a voltage applied to a polarized electromagnet formed by a current direction switching means for switching the current direction based on the state of an output contact of a sensor circuit, an AC power supply and an polarized electromagnetic relay are used. An anti-series circuit of first and second rectifier diodes is connected in parallel to the series circuit with the polar electromagnetic relay, a common terminal of the output contact of the sensor circuit consisting of a C contact is connected to the connection point of both rectifier diodes, and the first a rectifier diode, a normally closed side of the output contact, and a first capacitor that is slowly charged through the first backflow blocking diode; A second capacitor that is slowly charged via a reverse current blocking diode is provided, and the first thyristor triggered by the first capacitor is connected to the second rectifier diode via the normally open side of the output contact. A drive circuit for a polarized electromagnetic relay, which is connected in parallel, and in which a second thyristor triggered by a second capacitor is connected in parallel to a first rectifier diode via the normally closed side of an output contact.