JPH0447485B2 - - Google Patents

Info

Publication number
JPH0447485B2
JPH0447485B2 JP58046165A JP4616583A JPH0447485B2 JP H0447485 B2 JPH0447485 B2 JP H0447485B2 JP 58046165 A JP58046165 A JP 58046165A JP 4616583 A JP4616583 A JP 4616583A JP H0447485 B2 JPH0447485 B2 JP H0447485B2
Authority
JP
Japan
Prior art keywords
current
transistor
circuit
voltage
constant current
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.)
Expired - Lifetime
Application number
JP58046165A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59172819A (ja
Inventor
Shigeyoshi Hayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rohm Co Ltd
Original Assignee
Rohm Co Ltd
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 Rohm Co Ltd filed Critical Rohm Co Ltd
Priority to JP4616583A priority Critical patent/JPS59172819A/ja
Publication of JPS59172819A publication Critical patent/JPS59172819A/ja
Publication of JPH0447485B2 publication Critical patent/JPH0447485B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0017—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid-state elements
    • H03G1/0023—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid-state elements in emitter-coupled or cascode amplifiers

Landscapes

  • Control Of Amplification And Gain Control (AREA)
JP4616583A 1983-03-19 1983-03-19 利得可変増幅器 Granted JPS59172819A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4616583A JPS59172819A (ja) 1983-03-19 1983-03-19 利得可変増幅器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4616583A JPS59172819A (ja) 1983-03-19 1983-03-19 利得可変増幅器

Publications (2)

Publication Number Publication Date
JPS59172819A JPS59172819A (ja) 1984-09-29
JPH0447485B2 true JPH0447485B2 (en, 2012) 1992-08-04

Family

ID=12739397

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4616583A Granted JPS59172819A (ja) 1983-03-19 1983-03-19 利得可変増幅器

Country Status (1)

Country Link
JP (1) JPS59172819A (en, 2012)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2911901B2 (ja) * 1988-08-18 1999-06-28 日本電気アイシーマイコンシステム株式会社 減衰回路
JPH0638056U (ja) * 1992-10-08 1994-05-20 ティアック株式会社 磁気ディスク装置
JP2740463B2 (ja) * 1995-02-16 1998-04-15 ソニー株式会社 ディスク回転駆動装置
US6317502B1 (en) * 1996-02-29 2001-11-13 Sanyo Electric Co., Ltd. Electronic volume control circuit with controlled output characteristic
JP4997730B2 (ja) * 2005-08-31 2012-08-08 パナソニック株式会社 可変利得増幅器およびそれを用いた交流電源装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5949726B2 (ja) * 1976-01-12 1984-12-04 ヤマハ株式会社 電圧制御型抵抗回路
JPS54163851U (en, 2012) * 1978-05-10 1979-11-16
JPS5944940B2 (ja) * 1979-07-31 1984-11-02 安立電気株式会社 パンチプレス機

Also Published As

Publication number Publication date
JPS59172819A (ja) 1984-09-29

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