GB2242326B - Bipolar tunable transconductance element - Google Patents

Bipolar tunable transconductance element

Info

Publication number
GB2242326B
GB2242326B GB9105213A GB9105213A GB2242326B GB 2242326 B GB2242326 B GB 2242326B GB 9105213 A GB9105213 A GB 9105213A GB 9105213 A GB9105213 A GB 9105213A GB 2242326 B GB2242326 B GB 2242326B
Authority
GB
United Kingdom
Prior art keywords
transconductance element
tunable transconductance
bipolar
bipolar tunable
tunable
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 - Fee Related
Application number
GB9105213A
Other versions
GB9105213D0 (en
GB2242326A (en
Inventor
Richard G Yamasaki
Veirman Geert A De
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.)
Silicon Systems Inc
Original Assignee
Silicon Systems Inc
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 Silicon Systems Inc filed Critical Silicon Systems Inc
Publication of GB9105213D0 publication Critical patent/GB9105213D0/en
Publication of GB2242326A publication Critical patent/GB2242326A/en
Application granted granted Critical
Publication of GB2242326B publication Critical patent/GB2242326B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3211—Modifications of amplifiers to reduce non-linear distortion in differential amplifiers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)
  • Networks Using Active Elements (AREA)
GB9105213A 1990-03-22 1991-03-12 Bipolar tunable transconductance element Expired - Fee Related GB2242326B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US49786390A 1990-03-22 1990-03-22

Publications (3)

Publication Number Publication Date
GB9105213D0 GB9105213D0 (en) 1991-04-24
GB2242326A GB2242326A (en) 1991-09-25
GB2242326B true GB2242326B (en) 1994-09-28

Family

ID=23978614

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9105213A Expired - Fee Related GB2242326B (en) 1990-03-22 1991-03-12 Bipolar tunable transconductance element

Country Status (4)

Country Link
JP (1) JP3211169B2 (en)
KR (1) KR910017714A (en)
DE (1) DE4109172A1 (en)
GB (1) GB2242326B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5117199A (en) * 1991-03-27 1992-05-26 International Business Machines Corporation Fully differential follower using operational amplifier
DE4316551C2 (en) * 1993-05-18 1995-03-30 Telefonbau & Normalzeit Gmbh Circuit arrangement for a filter
US5943177A (en) * 1995-05-26 1999-08-24 Maxtor Corporation MR head read signal preconditioning circuitry for reducing pulse -to-pulse baseline distortion

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0230693A1 (en) * 1985-12-31 1987-08-05 Philips Composants High-frequency differential amplifier stage and amplifier with such a differential amplifier stage

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0230693A1 (en) * 1985-12-31 1987-08-05 Philips Composants High-frequency differential amplifier stage and amplifier with such a differential amplifier stage
US4769616A (en) * 1985-12-31 1988-09-06 U.S. Philips Corporation High-frequency differential amplifier stage and amplifier comprising such a differential amplifier stage

Also Published As

Publication number Publication date
GB9105213D0 (en) 1991-04-24
DE4109172A1 (en) 1991-09-26
KR910017714A (en) 1991-11-05
GB2242326A (en) 1991-09-25
JP3211169B2 (en) 2001-09-25
JPH05152860A (en) 1993-06-18

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19960312