JPS5933541U

JPS5933541U - reset circuit

Info

Publication number: JPS5933541U
Application number: JP12506182U
Authority: JP
Inventors: 山平　豊; 斎藤　正男
Original assignee: 沖電気工業株式会社
Priority date: 1982-08-20
Filing date: 1982-08-20
Publication date: 1984-03-01

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来のリセット回路を示す回路図、第２図は本
考案リセット回路の一実施例を示す回路図、第３図は同
じくそのタイムチャート、第４図は本考案リセット回路
の他の実施例を示す回路図である。１、　１１．　１３．　２１．　２２．　２５・・・抵
抗、２゜１２．２４・・・コンデンサ、３．２３・・・
ダイオード、Ｖｃｃ・・・電源、ＧＮＤ・・・共通電位
、ＲＥＳＥＴ・・・リセット出力、ＰＯＲＴ・・・制御
出力、ＶＲＩ（・・・リセットされない電圧、ＶＲＬ・
・・リセットされる電圧。Fig. 1 is a circuit diagram showing a conventional reset circuit, Fig. 2 is a circuit diagram showing an embodiment of the reset circuit of the present invention, Fig. 3 is a time chart thereof, and Fig. 4 is another circuit diagram of the reset circuit of the present invention. FIG. 2 is a circuit diagram showing an example. 1, 11. 13. 21. 22. 25...Resistor, 2゜12.24...Capacitor, 3.23...
Diode, Vcc...power supply, GND...common potential, RESET...reset output, PORT...control output, VRI (...voltage that is not reset, VRL/
...Voltage to be reset.

Claims

[Scope of utility model registration request]

In electronic equipment that supplies a reset pulse to an input circuit with hysteresis characteristics when the power is turned on or when the voltage drops, the equipment has a control output that is high level when reset and low level when operating, and the resistor is connected to the power supply using a capacitor. A reset circuit characterized in that an integrating circuit is connected to a reset output, and further the control output and the reset output are connected with a resistor.