JPH039521U - - Google Patents

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Publication number
JPH039521U
JPH039521U JP6848389U JP6848389U JPH039521U JP H039521 U JPH039521 U JP H039521U JP 6848389 U JP6848389 U JP 6848389U JP 6848389 U JP6848389 U JP 6848389U JP H039521 U JPH039521 U JP H039521U
Authority
JP
Japan
Prior art keywords
diode
constant current
voltage
input voltage
envelope
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
JP6848389U
Other languages
Japanese (ja)
Other versions
JPH0731614Y2 (en
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 JP1989068483U priority Critical patent/JPH0731614Y2/en
Publication of JPH039521U publication Critical patent/JPH039521U/ja
Application granted granted Critical
Publication of JPH0731614Y2 publication Critical patent/JPH0731614Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Measurement Of Current Or Voltage (AREA)

Description

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

第１図は本考案に係る包絡線電圧検出回路の一
実施例を示す構成図、第２図は本考案の他の実施
例図、第３図は従来の包絡線電圧検出回路の一例
を示す構成図、第４図は第３図の回路における問
題点を解決した包絡線電圧検出回路の一例を示す
構成図である。 Ａ……差動増幅器、Ｄ１，Ｄ２……ダイオード
、ＣＣ１，ＣＣ２……定電流発生回路。 FIG. 1 is a block diagram showing one embodiment of an envelope voltage detection circuit according to the present invention, FIG. 2 is a diagram showing another embodiment of the present invention, and FIG. 3 is an example of a conventional envelope voltage detection circuit. 4 is a block diagram showing an example of an envelope voltage detection circuit that solves the problems in the circuit of FIG. 3. A... Differential amplifier, D1, D2... Diode, CC1, CC2... Constant current generation circuit.

Claims (1)

【実用新案登録請求の範囲】 ダイオードＤ１により入力電圧を整流し、その
電圧でコンデンサＣを充電するようにして入力電
圧の包絡線電圧を検出するようにした包絡線電圧
検出回路において、 ダイオードＤ１とコンデンサＣの共通接続点に
一端が接続されダイオードＤ１へ流れ込む方向に
一定の電流を流すための定電流発生回路Ｊ１と、 帰還路にダイオードＤ２が接続され、入力電圧
に対応した電圧を前記ダイオードＤ１へ出力する
差動増幅器Ａと、 この差動増幅器ＡのダイオードＤ２へ流れ込む
方向に一定の電流を流すための定電流発生回路Ｊ
２ を具備したことを特徴とする包絡線電圧検出回路
。[Claims for Utility Model Registration] In an envelope voltage detection circuit that detects the envelope voltage of the input voltage by rectifying the input voltage using the diode D1 and charging the capacitor C with the rectified voltage, the diode D1 and A constant current generating circuit J1 is connected at one end to the common connection point of the capacitor C to flow a constant current in the direction of flowing into the diode D1 , and a diode D2 is connected to the feedback path, and a voltage corresponding to the input voltage is passed through the diode. A differential amplifier A that outputs to D1, and a constant current generating circuit J that causes a constant current to flow in the direction of flowing into the diode D2 of this differential amplifier A.
An envelope voltage detection circuit characterized by comprising: 2 .
JP1989068483U 1989-06-12 1989-06-12 Envelope voltage detection circuit Expired - Lifetime JPH0731614Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989068483U JPH0731614Y2 (en) 1989-06-12 1989-06-12 Envelope voltage detection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989068483U JPH0731614Y2 (en) 1989-06-12 1989-06-12 Envelope voltage detection circuit

Publications (2)

Publication Number Publication Date
JPH039521U true JPH039521U (en) 1991-01-29
JPH0731614Y2 JPH0731614Y2 (en) 1995-07-19

Family

ID=31602961

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989068483U Expired - Lifetime JPH0731614Y2 (en) 1989-06-12 1989-06-12 Envelope voltage detection circuit

Country Status (1)

Country Link
JP (1) JPH0731614Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015129569A (en) * 2014-01-08 2015-07-16 本田技研工業株式会社 Infinity variable transmission operation state estimation device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6041483A (en) * 1983-08-16 1985-03-05 Koasa Shoji Kk Preparation of enzyme for hydrolyzing slightly digestible polysaccharide

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6041483A (en) * 1983-08-16 1985-03-05 Koasa Shoji Kk Preparation of enzyme for hydrolyzing slightly digestible polysaccharide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015129569A (en) * 2014-01-08 2015-07-16 本田技研工業株式会社 Infinity variable transmission operation state estimation device

Also Published As

Publication number Publication date
JPH0731614Y2 (en) 1995-07-19

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