JPS61131137U

JPS61131137U -

Info

Publication number: JPS61131137U
Application number: JP1384585U
Authority: JP
Priority date: 1985-01-31
Filing date: 1985-01-31
Publication date: 1986-08-16

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例に係るタイムスイツ
チのブロツク回路図。第２図は第１図における信
号切換回路の詳細な回路図。第３図〜第６図は、
第１図、第２図に示すタイムスイツチの動作を示
すタイムチヤート。第７図は、他の実施例におけ
る信号切換回路の詳細な回路図。第８図、第９図
は第７図の信号切換回路の動作を示すタイムチヤ
ート。１０……タイマーカウンタ、３０，３２……外
部スイツチ、４２，４４……操作時間カウンタ、
４６……信号切換回路、６４……外部機器制御回
路。 FIG. 1 is a block circuit diagram of a time switch according to an embodiment of the present invention. FIG. 2 is a detailed circuit diagram of the signal switching circuit in FIG. 1. Figures 3 to 6 are
2 is a time chart showing the operation of the time switch shown in FIGS. 1 and 2. FIG. FIG. 7 is a detailed circuit diagram of a signal switching circuit in another embodiment. 8 and 9 are time charts showing the operation of the signal switching circuit of FIG. 7. 10...Timer counter, 30, 32...External switch, 42, 44...Operation time counter,
46...signal switching circuit, 64...external device control circuit.

Claims

[Scope of utility model registration request]

a timer counter that counts the timer time; an external device control circuit that turns on or off a connected external device when the timer time arrives; at least one external switch; and an operation time counter that counts the operation time of the external switch. When the count value of the operation time counter is above a certain value, a signal from the external switch is supplied to the timer counter as a correction signal, and when the count value of the operation time counter is below a certain value, the signal is supplied to the external device control circuit. A time switch comprising: a signal switching circuit that supplies a timer on/off switching signal.