JPS5379357A - Automatic gain switching amplifier - Google Patents

Automatic gain switching amplifier

Info

Publication number
JPS5379357A
JPS5379357A JP15683676A JP15683676A JPS5379357A JP S5379357 A JPS5379357 A JP S5379357A JP 15683676 A JP15683676 A JP 15683676A JP 15683676 A JP15683676 A JP 15683676A JP S5379357 A JPS5379357 A JP S5379357A
Authority
JP
Japan
Prior art keywords
automatic gain
switching amplifier
gain switching
amplifiers
swtiching
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
JP15683676A
Other languages
Japanese (ja)
Other versions
JPS5828925B2 (en
Inventor
Tsuneaki Ishimura
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP51156836A priority Critical patent/JPS5828925B2/en
Publication of JPS5379357A publication Critical patent/JPS5379357A/en
Publication of JPS5828925B2 publication Critical patent/JPS5828925B2/en
Expired 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
    • H03G1/0088—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using discontinuously variable devices, e.g. switch-operated
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices

Landscapes

  • Control Of Amplification And Gain Control (AREA)

Abstract

PURPOSE:Amplifiers are series-connected by n stages which are equivalent to the dynamic range and level detection circuits are connected to the output terminals of respective amplifiers; and then the outputs are supplied to a decoders, thereby performing the automatic gain-swtiching by means of a few parts.
JP51156836A 1976-12-23 1976-12-23 automatic gain switching amplifier Expired JPS5828925B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51156836A JPS5828925B2 (en) 1976-12-23 1976-12-23 automatic gain switching amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51156836A JPS5828925B2 (en) 1976-12-23 1976-12-23 automatic gain switching amplifier

Publications (2)

Publication Number Publication Date
JPS5379357A true JPS5379357A (en) 1978-07-13
JPS5828925B2 JPS5828925B2 (en) 1983-06-18

Family

ID=15636415

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51156836A Expired JPS5828925B2 (en) 1976-12-23 1976-12-23 automatic gain switching amplifier

Country Status (1)

Country Link
JP (1) JPS5828925B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008196897A (en) * 2007-02-09 2008-08-28 Fujitsu Ltd Amplitude detection device
JP2011193284A (en) * 2010-03-15 2011-09-29 Fujitsu Ltd Receiving circuit, receiving method, and radio communication device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4871118A (en) * 1971-12-24 1973-09-26

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4871118A (en) * 1971-12-24 1973-09-26

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008196897A (en) * 2007-02-09 2008-08-28 Fujitsu Ltd Amplitude detection device
US8014747B2 (en) 2007-02-09 2011-09-06 Fujitsu Limited Amplitude detecting device
JP2011193284A (en) * 2010-03-15 2011-09-29 Fujitsu Ltd Receiving circuit, receiving method, and radio communication device

Also Published As

Publication number Publication date
JPS5828925B2 (en) 1983-06-18

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