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102. 发明专利

JPS6465731A DELAYED ACTUATING CIRCUIT FOR ELECTROMAGNETIC RELAY 失效
公开(公告)号：JPS6465731A
公开(公告)日：1989-03-13
申请号：JP22220987
申请日：1987-09-04
申请人： FUJITSU LTD
发明人： NAKAMURA AKIHIKO , SAKAGAMI YUSUKE
IPC分类号： H01H7/00
摘要： PURPOSE:To set the time for delayed actuation or delayed restitution of an electromagnetic relay to any desired value by forming a delayed actuating circuitry for the electromagnetic relay from a plurality of monostable multi's and a plurality of logic circuit elements. CONSTITUTION:When signal at the input terminal In rises in a delayed actuating circuitry, the output signal of the first stage monostable multi's 31 rises to then sink after passage of a time determined by C and R connected therewith. When the signal emitted from this first stage monostable multi 31 sinks, the output signal of the second stage monostable multi 32 rises to then sink after passage of a time determined by C and R connected therewith. With the signal emitted from the second stage monostable multi sinks, the signal at the output terminal Out rises through the action of an OR circuit 41 and an exclusive OR circuit 42, and the signal at the raised output terminal Out sinks with sinking of the signal at the input terminal In. That is, an electromagnetic relay can be delayed actuated by controlling with the output terminal Out signal.

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