JPS6125038U - AC undervoltage detection circuit - Google Patents

AC undervoltage detection circuit

Info

Publication number
JPS6125038U
JPS6125038U JP10720784U JP10720784U JPS6125038U JP S6125038 U JPS6125038 U JP S6125038U JP 10720784 U JP10720784 U JP 10720784U JP 10720784 U JP10720784 U JP 10720784U JP S6125038 U JPS6125038 U JP S6125038U
Authority
JP
Japan
Prior art keywords
circuit
differential amplifier
detection circuit
undervoltage detection
amplifier circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP10720784U
Other languages
Japanese (ja)
Other versions
JPH03850Y2 (en
Inventor
政春 江本
Original Assignee
株式会社明電舎
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社明電舎 filed Critical 株式会社明電舎
Priority to JP10720784U priority Critical patent/JPS6125038U/en
Publication of JPS6125038U publication Critical patent/JPS6125038U/en
Application granted granted Critical
Publication of JPH03850Y2 publication Critical patent/JPH03850Y2/ja
Granted legal-status Critical Current

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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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】 第１図は従来回路の構成図、第２図は本考案の第１実施
例回路の構成図、第３図は第２図の回路における各部の
動作を示す波形図、第４図は本考案の第２実施例回路の
構成図である。 １０・・・絶ａｈランス、２０，２４・・・パンドバス
フィルタ、２２・・・比較回路、２８・・・差動増幅回
路、３０・・・比較回路。[Brief Description of the Drawings] Fig. 1 is a block diagram of a conventional circuit, Fig. 2 is a block diagram of a first embodiment circuit of the present invention, and Fig. 3 is a waveform diagram showing the operation of each part in the circuit of Fig. 2. , FIG. 4 is a block diagram of a circuit according to a second embodiment of the present invention. DESCRIPTION OF SYMBOLS 10... Absolute Lance, 20, 24... Pandobus filter, 22... Comparison circuit, 28... Differential amplifier circuit, 30... Comparison circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 正弦波の交流入力を受けて、それと同一周波数、同一位
相で所定のピーク電圧の正弦波信号を発生する波形整形
回路と、この波形整形回路の出力と上記交流入力とを直
接あるいは整流した後に演算する差動増幅回路と、この
差動増幅回路の出力を所定の基準電圧と比較する比較回
路とからなる交流不足電圧検出回路。A waveform shaping circuit receives a sine wave AC input and generates a sine wave signal of a predetermined peak voltage at the same frequency and the same phase, and calculates the output of this waveform shaping circuit and the above AC input directly or after rectifying it. An AC undervoltage detection circuit consisting of a differential amplifier circuit that performs a differential amplifier circuit, and a comparison circuit that compares the output of the differential amplifier circuit with a predetermined reference voltage.
JP10720784U 1984-07-16 1984-07-16 AC undervoltage detection circuit Granted JPS6125038U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10720784U JPS6125038U (en) 1984-07-16 1984-07-16 AC undervoltage detection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10720784U JPS6125038U (en) 1984-07-16 1984-07-16 AC undervoltage detection circuit

Publications (2)

Publication Number Publication Date
JPS6125038U true JPS6125038U (en) 1986-02-14
JPH03850Y2 JPH03850Y2 (en) 1991-01-11

Family

ID=30666464

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10720784U Granted JPS6125038U (en) 1984-07-16 1984-07-16 AC undervoltage detection circuit

Country Status (1)

Country Link
JP (1) JPS6125038U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5914067U (en) * 1982-07-19 1984-01-27 株式会社東芝 AC voltage detection circuit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5914067B2 (en) * 1976-07-09 1984-04-03 日産化学工業株式会社 Vinyl chloride resin composition

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5914067U (en) * 1982-07-19 1984-01-27 株式会社東芝 AC voltage detection circuit

Also Published As

Publication number Publication date
JPH03850Y2 (en) 1991-01-11

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