JPS616776U - Active power measurement circuit - Google Patents

Active power measurement circuit

Info

Publication number
JPS616776U
JPS616776U JP9072984U JP9072984U JPS616776U JP S616776 U JPS616776 U JP S616776U JP 9072984 U JP9072984 U JP 9072984U JP 9072984 U JP9072984 U JP 9072984U JP S616776 U JPS616776 U JP S616776U
Authority
JP
Japan
Prior art keywords
circuit
active power
power measurement
measurement circuit
comparator
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
JP9072984U
Other languages
Japanese (ja)
Inventor
紀夫 長谷川
Original Assignee
株式会社日立製作所
日立オートモテイブエンジニアリング株式会社
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 株式会社日立製作所, 日立オートモテイブエンジニアリング株式会社 filed Critical 株式会社日立製作所
Priority to JP9072984U priority Critical patent/JPS616776U/en
Publication of JPS616776U publication Critical patent/JPS616776U/en
Pending legal-status Critical Current

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  • Measurement Of Current Or Voltage (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図は本考案の一実施例を示す回路構成図、第２図は
動作波形図である。 １・・・乗算回路、２・・・Ａ／Ｄ変換回路、３・・・
加算回路、４，５．１０・・・レジスタ、６・・・Ｄ／
Ａ変換回路、７・・・コンパレーク、８・・・タイミン
グ信号発生回路、９・・・カウンタ、１１・・・除算回
路。FIG. 1 is a circuit configuration diagram showing an embodiment of the present invention, and FIG. 2 is an operational waveform diagram. 1... Multiplication circuit, 2... A/D conversion circuit, 3...
Addition circuit, 4, 5.10...Register, 6...D/
A conversion circuit, 7... Comparator, 8... Timing signal generation circuit, 9... Counter, 11... Division circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] − 交流電圧・電流のアナログ入力を乗算し瞬時電力を
求める乗算回路と前記交流入力の周期を検出するための
コンパレータと前記乗算回路出力の電力信号をデジタル
に変換するＡ／Ｄ変換一路と前記コンパレータて検出し
た１周期の間デジタルに変換された電力を弗る一定サン
プリング周期で累算する回路と累算回数をカウントする
回路と前記累算した値を前記累算回数で割る除算回路か
らなることを特徴とする有効電力測定回路。- A multiplication circuit that multiplies analog inputs of AC voltage and current to obtain instantaneous power, a comparator for detecting the cycle of the AC input, an A/D conversion circuit that converts the power signal output from the multiplication circuit into digital, and the comparator. comprising a circuit for accumulating the electric power converted into digital data during one period detected by the user at an increasing constant sampling period, a circuit for counting the number of accumulations, and a division circuit for dividing the accumulated value by the number of accumulations. An active power measurement circuit featuring:
JP9072984U 1984-06-20 1984-06-20 Active power measurement circuit Pending JPS616776U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9072984U JPS616776U (en) 1984-06-20 1984-06-20 Active power measurement circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9072984U JPS616776U (en) 1984-06-20 1984-06-20 Active power measurement circuit

Publications (1)

Publication Number Publication Date
JPS616776U true JPS616776U (en) 1986-01-16

Family

ID=30645980

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9072984U Pending JPS616776U (en) 1984-06-20 1984-06-20 Active power measurement circuit

Country Status (1)

Country Link
JP (1) JPS616776U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62174663A (en) * 1986-01-28 1987-07-31 Mitsubishi Electric Corp Electric power converter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62174663A (en) * 1986-01-28 1987-07-31 Mitsubishi Electric Corp Electric power converter

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