JPS6438838U

JPS6438838U -

Info

Publication number: JPS6438838U
Application number: JP13490187U
Authority: JP
Priority date: 1987-09-02
Filing date: 1987-09-02
Publication date: 1989-03-08

Description

[Brief explanation of the drawing]

第１図は本考案に係るタイマー装置の概要を示
すブロツク図、第２図は本考案に係るタイマー装
置における具体的回路を示す図、第３図は本考案
に係るタイマー装置の回路における信号を示すタ
イムチヤートである。１０……タイマー装置、１２……商用電源、１
４……電源平滑回路、１６……オン検出回路、２
６……基準信号発生回路、２８……オフ検出回路
、４０……タイマースタート回路、４６……タイ
マーカウンタ回路、５６……チエツク回路、６２
……オン信号発生回路、６８……電源スイツチ回
路、７６……プリセツト回路、８０……電源線、
８２……外部機器、８４……電源スイツチ。 FIG. 1 is a block diagram showing an overview of the timer device according to the present invention, FIG. 2 is a diagram showing a specific circuit in the timer device according to the present invention, and FIG. 3 is a diagram showing signals in the circuit of the timer device according to the present invention. This is a time chart. 10...Timer device, 12...Commercial power supply, 1
4...Power supply smoothing circuit, 16...On detection circuit, 2
6... Reference signal generation circuit, 28... Off detection circuit, 40... Timer start circuit, 46... Timer counter circuit, 56... Check circuit, 62
...On signal generation circuit, 68...Power switch circuit, 76...Preset circuit, 80...Power line,
82...External device, 84...Power switch.

Claims

[Claims for Utility Model Registration] A power supply smoothing circuit that rectifies the AC voltage of a commercial power source and obtains a DC output for driving each circuit in a timer device, a reference signal generation circuit, and the reference signal generation circuit. A timer counter circuit that counts the reference signal from the circuit and outputs a count-up signal after a certain period of time, and a switch circuit that turns on and off the power of external equipment in response to the count-up signal of the timer counter circuit. A timer device comprising: a power switch circuit that is in an off state; an on detection circuit that detects that the power of the external device is turned on and off and outputs an on detection signal; and the timer counter circuit that outputs a count up signal. If the ON detection signal is not output, the OFF detection signal is output for a predetermined time after the ON detection signal disappears, and if the ON detection signal is input while the OFF detection signal is being output, the OFF detection signal is maintained. an OFF detection circuit that outputs an activation signal to the timer counter circuit when an ON detection signal is input while an OFF detection signal is input, and maintains the activation signal while the OFF detection signal continues; a timer start circuit that counts the reference signal from the reference signal generation circuit when a count-up signal from the timer counter circuit is input, and outputs a check signal at regular intervals; an on-signal generation circuit that outputs an on-signal to turn on the power switch circuit when a check signal from the circuit is input and when a count-up signal from the timer counter circuit is not input; A timer device comprising: a preset circuit that detects that the on detection circuit does not output an on detection signal when the check circuit outputs a check signal and outputs a preset signal that sets the off detection circuit in an initial state.