JPS616778U - Voltage change direction determination circuit - Google Patents

Voltage change direction determination circuit

Info

Publication number
JPS616778U
JPS616778U JP9094084U JP9094084U JPS616778U JP S616778 U JPS616778 U JP S616778U JP 9094084 U JP9094084 U JP 9094084U JP 9094084 U JP9094084 U JP 9094084U JP S616778 U JPS616778 U JP S616778U
Authority
JP
Japan
Prior art keywords
change direction
voltage change
determination circuit
direction determination
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.)
Pending
Application number
JP9094084U
Other languages
Japanese (ja)
Inventor
郁郎 横田
Original Assignee
日本電気ホームエレクトロニクス株式会社
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 日本電気ホームエレクトロニクス株式会社 filed Critical 日本電気ホームエレクトロニクス株式会社
Priority to JP9094084U priority Critical patent/JPS616778U/en
Publication of JPS616778U publication Critical patent/JPS616778U/en
Pending legal-status Critical Current

Links

Landscapes

  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Emergency Protection Circuit Devices (AREA)

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

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一実一例を示す回路図である。 Ａ２・・・・・・差動増幅回路、ＡＩ，ＤＩ，Ｒｌ，Ｃ
１・・・・・・サンプルホールド回路、Ｔｒ１ ，Ｔｒ
２ＬＥＤ − ｌ ， ＬＥＤ− ２， Ｒ ６・・・
・・・ＬＥＤ点燈回路。FIG. 1 is a circuit diagram showing an example of the present invention. A2...Differential amplifier circuit, AI, DI, Rl, C
1... Sample hold circuit, Tr1, Tr
2LED-1, LED-2, R6...
...LED lighting circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 被判定電圧の出力端子を差動増幅回路の一方の入力端子
には直接に、他方の入力端子にはサンプルホールド回路
を介して接続し、前記差動増幅回路の出力端子をこの出
力端子の電圧が正、負または零であることを二つのＬＥ
Ｄの点燈または消燈の組合わせによって表示するＬＥＤ
点燈回路に接続したことを特徴とする電圧変化方向判定
回路。The output terminal of the voltage to be determined is directly connected to one input terminal of the differential amplifier circuit, and the other input terminal is connected via a sample hold circuit, and the output terminal of the differential amplifier circuit is connected to the voltage of this output terminal. is positive, negative or zero.
LED displayed by combination of D on or off
A voltage change direction determining circuit characterized in that it is connected to a lighting circuit.
JP9094084U 1984-06-19 1984-06-19 Voltage change direction determination circuit Pending JPS616778U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9094084U JPS616778U (en) 1984-06-19 1984-06-19 Voltage change direction determination circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9094084U JPS616778U (en) 1984-06-19 1984-06-19 Voltage change direction determination circuit

Publications (1)

Publication Number Publication Date
JPS616778U true JPS616778U (en) 1986-01-16

Family

ID=30646388

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9094084U Pending JPS616778U (en) 1984-06-19 1984-06-19 Voltage change direction determination circuit

Country Status (1)

Country Link
JP (1) JPS616778U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52129350A (en) * 1976-04-23 1977-10-29 Fuji Electric Co Ltd Output polarity judgement unit of analog arithmetic circuit
JPS5890180A (en) * 1981-11-26 1983-05-28 Meidensha Electric Mfg Co Ltd Detecting circuit for microvariation rate

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52129350A (en) * 1976-04-23 1977-10-29 Fuji Electric Co Ltd Output polarity judgement unit of analog arithmetic circuit
JPS5890180A (en) * 1981-11-26 1983-05-28 Meidensha Electric Mfg Co Ltd Detecting circuit for microvariation rate

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