JPH02110242U

JPH02110242U -

Info

Publication number: JPH02110242U
Application number: JP1737689U
Authority: JP
Priority date: 1989-02-16
Filing date: 1989-02-16
Publication date: 1990-09-04

Description

[Brief explanation of drawings]

第１図は本考案の構成を示すブロツク図、第２
図は本考案の一実施例の回路ブロツク図、第３図
及び第４図は同実施例の制御フローチヤートであ
る。１……第１端子、２……第２端子、３……第３
端子、１１……操作スイツチ、１２……電源、１
３……電源リレーＢ（第１スイツチング手段）、
１４……電源リレーＡ（第２スイツチング手段）
、１５……スイツチ入力判別手段、１６……電圧
印加状態検出手段、１７……制御手段。 Figure 1 is a block diagram showing the configuration of the present invention;
The figure is a circuit block diagram of one embodiment of the present invention, and FIGS. 3 and 4 are control flowcharts of the same embodiment. 1...First terminal, 2...Second terminal, 3...Third terminal
Terminal, 11... Operation switch, 12... Power supply, 1
3...Power supply relay B (first switching means),
14...Power supply relay A (second switching means)
, 15... Switch input determination means, 16... Voltage application state detection means, 17... Control means.

Claims

[Claims for Utility Model Registration] (a) A first terminal connected to a power source via an operating switch; (B) A first terminal connected to a power source via a first switching means that is turned on when the operating switch is turned on. (c) a third terminal connected to a power source via a second switching means that operates in response to an operating signal; and (d) a switch input for determining the ON/OFF state of the operating switch. (e) voltage application state detection means for detecting whether or not a voltage is applied to the second terminal or the third terminal; (f) the first terminal, the second terminal, or the third terminal; When the operating switch is in operation, it outputs an operating signal to operate the second switching means, and after the operation switch is turned OFF, the second switching means is turned on so as to self-maintain in the ON state. Outputting a signal and performing predetermined processing during that time; after completing the processing, storing information that the processing has been completed in a storage device; thereafter outputting an OFF operation signal to turn the second switching means into the OFF state; Based on the content stored in the storage device, the type of the actuation signal supplied to the second switching means, the output signal of the switch input determining means, and the output signal of the voltage application state detecting means, the first and second switching means A failure detection device for a power supply circuit, comprising: a control means for determining a failure status of the power supply circuit.