JPS59243U

JPS59243U - relay device

Info

Publication number: JPS59243U
Application number: JP9539782U
Authority: JP
Inventors: 川上　建次
Original assignee: 横河電機株式会社
Priority date: 1982-06-25
Filing date: 1982-06-25
Publication date: 1984-01-05

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図は本考案の一実施例を示す回路図、第２図は第１
図の動作を説明するためのタイムチャート、第３図は本
考案の他の実施例を示す回路図、第４図は第３図の動作
を説明するためのタイムチャートである。 ■・・・交流電源、ｚｃｐ・・・パルス発生回路、ＲＬ
・・・、リレー励磁コイル、ｒｌ・・・リレー接点、Ｆ
Ｆ・・・Ｄ形フリップフロップ、Ｔ・・・制御信号入力
端子、Ｌ・・・ループコイル、Ｈ・・・ホール素子、Ｚ
・・・負荷。Fig. 1 is a circuit diagram showing one embodiment of the present invention, and Fig. 2 is a circuit diagram showing an embodiment of the present invention.
FIG. 3 is a circuit diagram showing another embodiment of the present invention, and FIG. 4 is a time chart for explaining the operation of FIG. 3. ■...AC power supply, zcp...pulse generation circuit, RL
..., relay excitation coil, rl...relay contact, F
F...D flip-flop, T...control signal input terminal, L...loop coil, H...Hall element, Z
···load.

Claims

[Scope of utility model registration request]

In a relay device configured to supply AC power to a load through relay contacts, there is a pulse generation circuit that generates a clock pulse synchronized with the zero-crossing point of the current flowing through the load, and a pulse generation circuit that generates a clock pulse that is output from this pulse generation circuit. A relay device comprising a relay drive circuit that opens and opens contacts of the relay according to clock pulses. −