GB2116793B - Variable gain amplifier - Google Patents

Variable gain amplifier

Info

Publication number
GB2116793B
GB2116793B GB08303666A GB8303666A GB2116793B GB 2116793 B GB2116793 B GB 2116793B GB 08303666 A GB08303666 A GB 08303666A GB 8303666 A GB8303666 A GB 8303666A GB 2116793 B GB2116793 B GB 2116793B
Authority
GB
United Kingdom
Prior art keywords
variable gain
gain amplifier
amplifier
variable
gain
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
Application number
GB08303666A
Other versions
GB2116793A (en
GB8303666D0 (en
Inventor
William C Muellner
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.)
Applied Biosystems Inc
Original Assignee
Perkin Elmer Corp
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 Perkin Elmer Corp filed Critical Perkin Elmer Corp
Publication of GB8303666D0 publication Critical patent/GB8303666D0/en
Publication of GB2116793A publication Critical patent/GB2116793A/en
Application granted granted Critical
Publication of GB2116793B publication Critical patent/GB2116793B/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
GB08303666A 1982-03-03 1983-02-10 Variable gain amplifier Expired GB2116793B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US35440882A 1982-03-03 1982-03-03

Publications (3)

Publication Number Publication Date
GB8303666D0 GB8303666D0 (en) 1983-03-16
GB2116793A GB2116793A (en) 1983-09-28
GB2116793B true GB2116793B (en) 1986-01-29

Family

ID=23393219

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08303666A Expired GB2116793B (en) 1982-03-03 1983-02-10 Variable gain amplifier

Country Status (3)

Country Link
JP (1) JPS58194415A (en)
DE (1) DE3307597C2 (en)
GB (1) GB2116793B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3511593A1 (en) * 1985-03-27 1986-10-02 CREATEC Gesellschaft für Elektrotechnik mbH, 1000 Berlin Signal-processing apparatus having a level-matching circuit which can be switched over
FR2581492B1 (en) * 1985-05-06 1990-02-23 Inovelf Sa LOGARITHMIC CONVERTERS AND THEIR APPLICATION TO MEASUREMENT OF TRANSMITTED LIGHT
GB8801750D0 (en) * 1988-01-27 1988-02-24 Gen Electric Co Plc Gain control circuit
DE3815010A1 (en) * 1988-04-30 1989-11-09 Leybold Ag CIRCUIT ARRANGEMENT FOR THE COMBINED USE OF AN INDUCTIVE AND A CAPACITIVE DEVICE FOR THE DESTRUCTION-FREE MEASUREMENT OF THE RESISTANT THIN LAYERS
US5638087A (en) * 1993-01-11 1997-06-10 Sanyo Electric Co., Ltd. Dot matrix type liquid crystal display apparatus
DE19705025A1 (en) * 1997-02-10 1998-08-13 Dueren Fisgus Gottfried Control apparatus with universal amplifier
DE19729464C1 (en) * 1997-07-10 1998-10-01 Hartmann & Braun Gmbh & Co Kg Circuit for output stage for analogue electric variables I & V as proportional voltage

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3579138A (en) * 1969-08-25 1971-05-18 American Optical Corp Automatic gain presetting circuit
GB1342383A (en) * 1970-08-03 1974-01-03 Marconi Co Ltd Signal compression and expansion systems
FR2287811A1 (en) * 1974-10-08 1976-05-07 Cit Alcatel DIGITAL TYPE LEVEL REGULATOR
JPS6030446B2 (en) * 1976-11-26 1985-07-16 シャープ株式会社 High-speed writing digital automatic gain control circuit
US4190891A (en) * 1978-05-09 1980-02-26 The Bendix Corporation System having a fixed excitation and providing a variable ratio output
US4213097A (en) * 1978-10-19 1980-07-15 Racal-Milgo, Inc. Hybrid automatic gain control circuit
JPS5732113A (en) * 1980-08-04 1982-02-20 Advantest Corp Logarithmic amplifier

Also Published As

Publication number Publication date
GB2116793A (en) 1983-09-28
DE3307597A1 (en) 1983-10-20
DE3307597C2 (en) 1995-06-29
GB8303666D0 (en) 1983-03-16
JPS58194415A (en) 1983-11-12

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20020210