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Patent Searching and Data


Title:
LOAD CONTROL DEVICE
Document Type and Number:
Japanese Patent JPH07122158
Kind Code:
A
Abstract:

PURPOSE: To control a load even in a remote control switch circuit, and prevent the unnecessary continuation of feed to the load during the absence.

CONSTITUTION: A load control device has a card switch CS and a remote control relay PR for load control, and also a remote control relay driving circuit DR for ON-driving the remote control relay PR in reply to the ON-signal of the card switch CS when the remote control relay PR is in OFF state, and OFF-driving the remote control relay PR in reply to the OFF-signal of the card switch CS when the remote control relay PR is in ON-state. A remote control switch circuit RS for ON/OFF driving the remote control relay PR to reverse the ON/OFF state of the remote control relay PR every operation of a built-in switch SW2 is provided in parallel to the remote control relay driving circuit DR. Further, this device has a switch element X4 for separating the remote control switch circuit RS from the remote control relay PR in reply to the OFF-signal of the card switch CS.


Inventors:
KOSAKA SHIGEO
KAGAWA MASAHIKO
Application Number:
JP26498793A
Publication Date:
May 12, 1995
Filing Date:
October 22, 1993
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC WORKS LTD
International Classes:
H05B37/02; G08B25/04; H01H9/54; H01H27/00; H02J3/00; H02J13/00; (IPC1-7): H01H27/00; G08B25/04; H01H9/54; H02J3/00; H02J13/00; H05B37/02
Attorney, Agent or Firm:
Miyai Akio