FR2404339A1 - Circuit de protection de grille a faible courant de fuite - Google Patents

Circuit de protection de grille a faible courant de fuite

Info

Publication number
FR2404339A1
FR2404339A1 FR7827683A FR7827683A FR2404339A1 FR 2404339 A1 FR2404339 A1 FR 2404339A1 FR 7827683 A FR7827683 A FR 7827683A FR 7827683 A FR7827683 A FR 7827683A FR 2404339 A1 FR2404339 A1 FR 2404339A1
Authority
FR
France
Prior art keywords
field effect
gate field
protection circuit
protection
insulated
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
FR7827683A
Other languages
English (en)
Other versions
FR2404339B1 (fr
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.)
RCA Corp
Original Assignee
RCA 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 RCA Corp filed Critical RCA Corp
Publication of FR2404339A1 publication Critical patent/FR2404339A1/fr
Application granted granted Critical
Publication of FR2404339B1 publication Critical patent/FR2404339B1/fr
Granted 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
    • H03F1/52—Circuit arrangements for protecting such amplifiers
    • H03F1/523—Circuit arrangements for protecting such amplifiers for amplifiers using field-effect devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)

Abstract

L'invention concerne un circuit de protection pour transistors à effet de champ à grille isolée. Ce circuit de protection d'un transistor P1 à effet de champ à grille isolée, amplificateur de signaux, dont la grille est connectée à une borne 13 d'entrée de signaux, comprend un deuxième transistor à effet de champ à grille isolée P3 connecté à la borne 13 par sa grille. Les circuits internes d'isolation de grille des transistors à effet de champ sont protégés par un réseau 20 de diodes connecté entre les grilles des transistors P1 et P3 et un noeud 21. Le transistor P3 forme l'entrée d'un amplificateur tampon 30 de non-inversion à gain de tension unité, dont la sortie est appliquée au noeud 21. L'invention permet de réduire sensiblement le courant de fuite des diodes de protection sans diminuer la protection des circuits internes d'isolation des grilles des transistors à effet de champ à grille isolée vis-à-vis des effets électrostatiques et des surtensions.
FR7827683A 1977-09-27 1978-09-27 Circuit de protection de grille a faible courant de fuite Granted FR2404339A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/837,280 US4126830A (en) 1977-09-27 1977-09-27 Low leakage gate protection circuit

Publications (2)

Publication Number Publication Date
FR2404339A1 true FR2404339A1 (fr) 1979-04-20
FR2404339B1 FR2404339B1 (fr) 1983-11-25

Family

ID=25274044

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7827683A Granted FR2404339A1 (fr) 1977-09-27 1978-09-27 Circuit de protection de grille a faible courant de fuite

Country Status (4)

Country Link
US (1) US4126830A (fr)
JP (1) JPS5457937A (fr)
DE (1) DE2842113A1 (fr)
FR (1) FR2404339A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4206418A (en) * 1978-07-03 1980-06-03 Rca Corporation Circuit for limiting voltage differential in differential amplifiers
US4213099A (en) * 1978-11-20 1980-07-15 The United States Of America As Represented By The Secretary Of The Navy Hydrophone preamplifier and calibration circuit
US4371847A (en) * 1979-03-13 1983-02-01 Spectronics, Inc. Data transmission link
US4472648A (en) * 1981-08-25 1984-09-18 Harris Corporation Transistor circuit for reducing gate leakage current in a JFET
US4419632A (en) * 1981-12-11 1983-12-06 Bell Telephone Laboratories, Incorporated Bias circuit for microwave FETs
JPS6019308A (ja) * 1983-07-12 1985-01-31 Matsushita Electric Ind Co Ltd 演算増幅器
US4795920A (en) * 1987-08-03 1989-01-03 American Telephone And Telegraph Company Method and apparatus for sourcing and sinking current
JP2528313Y2 (ja) * 1991-01-17 1997-03-12 株式会社イナックス 局部洗浄装置用操作ボックス
JPH05315870A (ja) * 1992-05-07 1993-11-26 Mitsubishi Electric Corp 情報処理装置
US5909365A (en) * 1997-06-30 1999-06-01 Motorola Inc. Leakage current power supply
US6262565B1 (en) 1999-05-07 2001-07-17 Mytech Corporation Electrical load switch
US6750660B2 (en) * 2001-09-12 2004-06-15 Alstom Technology Ltd Apparatus for evaluating data representing the electrical characteristics of a combustion vessel
JP3874776B2 (ja) * 2004-10-15 2007-01-31 ローム株式会社 演算増幅器
US11502651B2 (en) * 2020-03-18 2022-11-15 Smarter Microelectronics (Guang Zhou) Co., Ltd. Overvoltage protection and gain bootstrap circuit of power amplifier

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3870968A (en) * 1971-01-15 1975-03-11 Monroe Electronics Inc Electrometer voltage follower having MOSFET input stage
US4044313A (en) * 1976-12-01 1977-08-23 Rca Corporation Protective network for an insulated-gate field-effect (IGFET) differential amplifier

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3870968A (en) * 1971-01-15 1975-03-11 Monroe Electronics Inc Electrometer voltage follower having MOSFET input stage
US4044313A (en) * 1976-12-01 1977-08-23 Rca Corporation Protective network for an insulated-gate field-effect (IGFET) differential amplifier

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/67 *

Also Published As

Publication number Publication date
FR2404339B1 (fr) 1983-11-25
US4126830A (en) 1978-11-21
JPS5722481B2 (fr) 1982-05-13
JPS5457937A (en) 1979-05-10
DE2842113A1 (de) 1979-03-29

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