JPS5317249A - Gain variable amplifier - Google Patents

Gain variable amplifier

Info

Publication number
JPS5317249A
JPS5317249A JP9191376A JP9191376A JPS5317249A JP S5317249 A JPS5317249 A JP S5317249A JP 9191376 A JP9191376 A JP 9191376A JP 9191376 A JP9191376 A JP 9191376A JP S5317249 A JPS5317249 A JP S5317249A
Authority
JP
Japan
Prior art keywords
gain variable
variable amplifier
distortion
input signal
signal voltage
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
JP9191376A
Other languages
Japanese (ja)
Inventor
Hiroshi Ogasawara
Tsuguo Otsuki
Masaaki Ogiso
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP9191376A priority Critical patent/JPS5317249A/en
Publication of JPS5317249A publication Critical patent/JPS5317249A/en
Pending legal-status Critical Current

Links

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  • Control Of Amplification And Gain Control (AREA)

Abstract

PURPOSE: The half input signal voltage as well as the gain control DC voltage are applied to the gate of MOSFET as a gain variable element, so that quardratic distortion of the input signal voltage and distortion of output signals can be prevented from occurring.
COPYRIGHT: (C)1978,JPO&Japio
JP9191376A 1976-07-31 1976-07-31 Gain variable amplifier Pending JPS5317249A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9191376A JPS5317249A (en) 1976-07-31 1976-07-31 Gain variable amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9191376A JPS5317249A (en) 1976-07-31 1976-07-31 Gain variable amplifier

Publications (1)

Publication Number Publication Date
JPS5317249A true JPS5317249A (en) 1978-02-17

Family

ID=14039811

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9191376A Pending JPS5317249A (en) 1976-07-31 1976-07-31 Gain variable amplifier

Country Status (1)

Country Link
JP (1) JPS5317249A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6014542A (en) * 1983-07-06 1985-01-25 Nippon Hoso Kyokai <Nhk> System for eliminating interference between orthogonally polarized waves

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6014542A (en) * 1983-07-06 1985-01-25 Nippon Hoso Kyokai <Nhk> System for eliminating interference between orthogonally polarized waves
JPH0460380B2 (en) * 1983-07-06 1992-09-25 Japan Broadcasting Corp

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