JPH01146176U - - Google Patents

Info

Publication number
JPH01146176U
JPH01146176U JP4329288U JP4329288U JPH01146176U JP H01146176 U JPH01146176 U JP H01146176U JP 4329288 U JP4329288 U JP 4329288U JP 4329288 U JP4329288 U JP 4329288U JP H01146176 U JPH01146176 U JP H01146176U
Authority
JP
Japan
Prior art keywords
converter
output
microcomputer
offset value
converts
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
JP4329288U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP4329288U priority Critical patent/JPH01146176U/ja
Publication of JPH01146176U publication Critical patent/JPH01146176U/ja
Pending legal-status Critical Current

Links

Description

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

第１図はこの考案のゼロ調整回路装置の一実施
例を示すブロツク線図、第２図はそのフローチヤ
ートである。 図面において、１は入力端子、２は切換スイツ
チ、４は加算増幅器、５はＡ／Ｄ変換器、６は出
力端子、７はマイクロコンピユータ、８は押しボ
タン、９はシフトレジスタ、１１はＤ／Ａ変換器
、１２は反転増幅器、１４はオンオフスイツチ、
Ｒｆは帰還抵抗である。 FIG. 1 is a block diagram showing an embodiment of the zero adjustment circuit device of this invention, and FIG. 2 is a flowchart thereof. In the drawing, 1 is an input terminal, 2 is a changeover switch, 4 is a summing amplifier, 5 is an A/D converter, 6 is an output terminal, 7 is a microcomputer, 8 is a push button, 9 is a shift register, and 11 is a D/D converter. A converter, 12 is an inverting amplifier, 14 is an on/off switch,
Rf is a feedback resistance.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] オフセツト値をデジタル変換するＡ／Ｄ変換器
と、このＡ／Ｄ変換器の出力に対応した補正デー
タを出力するマイクロコンピユータと、このマイ
クロコンピユータからのデジタルデータをアナロ
グデータに変換するＤ／Ａ変換器と、このＤ／Ａ
変換器からの出力で前記オフセツト値を相殺する
ように演算しその出力を前記Ａ／Ｄ変換器に加え
る演算回路手段とを有することを特徴とするゼロ
調整回路装置。 An A/D converter that digitally converts the offset value, a microcomputer that outputs correction data corresponding to the output of this A/D converter, and a D/A converter that converts the digital data from this microcomputer into analog data. The vessel and this D/A
A zero adjustment circuit device comprising: arithmetic circuit means for calculating to offset the offset value with the output from the converter and applying the output to the A/D converter.
JP4329288U 1988-03-31 1988-03-31 Pending JPH01146176U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4329288U JPH01146176U (en) 1988-03-31 1988-03-31

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4329288U JPH01146176U (en) 1988-03-31 1988-03-31

Publications (1)

Publication Number Publication Date
JPH01146176U true JPH01146176U (en) 1989-10-09

Family

ID=31269693

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4329288U Pending JPH01146176U (en) 1988-03-31 1988-03-31

Country Status (1)

Country Link
JP (1) JPH01146176U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04155267A (en) * 1990-10-18 1992-05-28 Kikusui Electron Corp Device for detecting maximum value and minimum value of input signal
KR100532168B1 (en) * 1997-04-24 2006-01-27 산요덴키가부시키가이샤 Current detecting circuit having a automatic correlation circuit of offset voltage

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5754870A (en) * 1980-09-19 1982-04-01 Hitachi Denshi Ltd Offset voltage compensating circuit for oscilloscope
JPS584776A (en) * 1981-06-26 1983-01-11 シエル・インターナシヨネイル・リサーチ・マーチヤツピイ・ベー・ウイ Novel benzotriazoles, manufacture and use as fungicide
JPS59212778A (en) * 1983-05-19 1984-12-01 Hioki Denki Kk Digital instrument having zero adjusting function and analog output function in combination

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5754870A (en) * 1980-09-19 1982-04-01 Hitachi Denshi Ltd Offset voltage compensating circuit for oscilloscope
JPS584776A (en) * 1981-06-26 1983-01-11 シエル・インターナシヨネイル・リサーチ・マーチヤツピイ・ベー・ウイ Novel benzotriazoles, manufacture and use as fungicide
JPS59212778A (en) * 1983-05-19 1984-12-01 Hioki Denki Kk Digital instrument having zero adjusting function and analog output function in combination

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04155267A (en) * 1990-10-18 1992-05-28 Kikusui Electron Corp Device for detecting maximum value and minimum value of input signal
KR100532168B1 (en) * 1997-04-24 2006-01-27 산요덴키가부시키가이샤 Current detecting circuit having a automatic correlation circuit of offset voltage

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