JPS5823430U

JPS5823430U - oscillator

Info

Publication number: JPS5823430U
Application number: JP11437981U
Authority: JP
Inventors: 中「野」　喜夫
Original assignee: 株式会社東海理化電機製作所
Priority date: 1981-08-03
Filing date: 1981-08-03
Publication date: 1983-02-14

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 the drawing]

第１図は比較器を用いて構成した従来の発振器の回路図
、第２図は本考案の一実施例の回路図である。１・・・・・・比較器、３・・・・・・時定数回路を構
成する抵抗、４・・・・・・時定数回路を構成するコン
デンサ、１０・・・・・・圧電ブサー、９．１２および
１６・・・・・・トランジスタ、１４および１７・・・
・・・制御回路。FIG. 1 is a circuit diagram of a conventional oscillator constructed using a comparator, and FIG. 2 is a circuit diagram of an embodiment of the present invention. 1... Comparator, 3... Resistor forming a time constant circuit, 4... Capacitor forming a time constant circuit, 10... Piezoelectric buser, 9.12 and 16...transistor, 14 and 17...
...Control circuit.

Claims

[Scope of utility model registration request]

A voltage across a capacitor of a time constant circuit including a first resistor and a capacitor is applied to the inverting input terminal, and a reference voltage is applied to the non-inverting input terminal, so that charging and discharging of the time constant circuit depends on the output voltage. In an oscillator comprising a comparator configured as above, a series circuit of a diode and a second resistor is connected between the output terminal of the comparator and a reference potential point of the comparator, and the output terminal of the comparator A zener diode is connected between the zener diode and the load, and control means is provided for selectively controlling on/off of the diode, and the output voltage output through the zener diode is controlled by turning the diode on and off by the control means. An oscillator that is essentially turned on and off.