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KR830002446A - 전력 트랜지스터용 과전류 보호회로 - Google Patents

전력 트랜지스터용 과전류 보호회로 Download PDF

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Publication number
KR830002446A
KR830002446A KR1019800000303A KR800000303A KR830002446A KR 830002446 A KR830002446 A KR 830002446A KR 1019800000303 A KR1019800000303 A KR 1019800000303A KR 800000303 A KR800000303 A KR 800000303A KR 830002446 A KR830002446 A KR 830002446A
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KR
South Korea
Prior art keywords
emitter
base
protection
transistor
potential
Prior art date
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Granted
Application number
KR1019800000303A
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English (en)
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KR830001456B1 (ko
Inventor
아브라함 카프랜 레오날드
Original Assignee
에드워드 제이. 노오턴
알. 씨. 에이. 코포레이션
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Application filed by 에드워드 제이. 노오턴, 알. 씨. 에이. 코포레이션 filed Critical 에드워드 제이. 노오턴
Publication of KR830002446A publication Critical patent/KR830002446A/ko
Application granted granted Critical
Publication of KR830001456B1 publication Critical patent/KR830001456B1/ko
Expired legal-status Critical Current

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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
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
    • H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Static Devices (AREA)
  • Dc-Dc Converters (AREA)

Abstract

내용없음

Description

전력 트랜지스터용 과전류 보호회로
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명을 실시하는 각각의 과전류 보호회로에 의해 과전류를 보호하고 AB급 푸시풀(push pull) 증폭기내의 부하를 구동시키는 한쌍의 출력 트랜지스터를 갖고있는 유사선형(quasi-linear)증폭기를 도시한 개략계통도.
제2도, 제3도, 제4도 및 제5도는 제1도에 도시한 것들을 하나이상 대체할 수 있는 본 발명을 실시하는 다른 과전류 보호회로를 도시한 개략 계통도.
제9도는 본 발명의 실시예에 사용된 전류 공급원을 도시한 개략계통도.
제10도는 본 발명의 실시예에 사용된 다른 전류 공급원을 도시한 개략계통도.

Claims (1)

  1. 도면에 도시하고 본문에 상술한 바와 같이, 에미터-베이스 접합부를 가진 베이스 및 에미터 전극을 갖고 있고, 콜렉터 전극을 갖고 있으며, 베이스 구동 전류와 에미터-대-콜렉터 전위를 수신하기 위해 접속된 보호회로를 가진 전자 회로에 있어서, 특히, 에미터-베이스 접합부를 가진 베이스 및 에미터 전극을 갖고있고, 콜렉터 전극을 갖고 있으며, 상기 보호로의 동작온도에 상기 기준 트랜지스터의 동작온도를 따르게 하기 위해 열적으로 결합된 상기 보호회로를 갖고 있는 기준 트랜지스터; 콜렉터-대-에미터 통로를 통하는 선정된 전류 레벨을 도전시키기 위해 상기 기준 트랜지스터를 접속하는 장치; 에미터-대-베이스 전위가 상기 기준 트랜지스터의 에미터-대 베이스 전위에 비교하여 특정량 만큼 증가할 때마다 상기 보호 트랜지스터에 관련해서 과전류 상태의 에미터-대-베이스 전위와 보호 트랜지스터의 에미터-대-베이스 전위를 비교하도록 적속된 차동 비교기장치; 및 상기 보호 트랜지스터에 유용한 베이스 구동 전류가 증가하는 것을 제한하기 위해 과전류 상태의 표시에 응답하는 장치들을 포함하는 것을 특징으로하는 보호 트랜지스터용 과전류 보호회로.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019800000303A 1979-01-29 1980-01-28 전력트랜지스터용 과전류 보호회로 Expired KR830001456B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US06/007,499 US4225897A (en) 1979-01-29 1979-01-29 Overcurrent protection circuit for power transistor
US?????007.499 1979-01-29
US?007499? 1979-01-29

Publications (2)

Publication Number Publication Date
KR830002446A true KR830002446A (ko) 1983-05-28
KR830001456B1 KR830001456B1 (ko) 1983-07-29

Family

ID=21726554

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019800000303A Expired KR830001456B1 (ko) 1979-01-29 1980-01-28 전력트랜지스터용 과전류 보호회로

Country Status (13)

Country Link
US (1) US4225897A (ko)
JP (1) JPS55102911A (ko)
KR (1) KR830001456B1 (ko)
AT (1) AT392375B (ko)
AU (1) AU527758B2 (ko)
DE (1) DE3003123A1 (ko)
ES (1) ES488056A0 (ko)
FI (1) FI73548C (ko)
FR (1) FR2447629B1 (ko)
GB (1) GB2042297B (ko)
IT (1) IT1130234B (ko)
NZ (1) NZ192727A (ko)
SE (1) SE441881B (ko)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57124909A (en) * 1981-01-27 1982-08-04 Toshiba Corp Output transistor protection circuit
US4321648A (en) * 1981-02-25 1982-03-23 Rca Corporation Over-current protection circuits for power transistors
US4481553A (en) * 1982-04-05 1984-11-06 General Electric Company Protection circuit
DE3238880A1 (de) * 1982-10-21 1984-04-26 Robert Bosch Gmbh, 7000 Stuttgart Schaltungsanordnung
JPH0630543B2 (ja) * 1987-01-13 1994-04-20 株式会社東芝 出力回路の異常検出報知回路
JPS63268432A (ja) * 1987-04-27 1988-11-07 Mitsubishi Electric Corp 短絡保護回路
US5061902A (en) * 1990-10-03 1991-10-29 International Business Machines Corp. Linear amplifier
IT1244209B (it) * 1990-12-20 1994-07-08 Sgs Thomson Microelectronics Circuito di controllo di caratteristiche tensione/corrente particolarmente per la protezione di transistori di potenza
US5485341A (en) * 1992-09-21 1996-01-16 Kabushiki Kaisha Toshiba Power transistor overcurrent protection circuit
EP0782236A1 (en) * 1995-12-29 1997-07-02 Co.Ri.M.Me. Consorzio Per La Ricerca Sulla Microelettronica Nel Mezzogiorno Circuit for the protection against overcurrents in power electronic devices, and corresponding method
DE10128772B4 (de) * 2001-06-13 2009-10-15 Infineon Technologies Ag Verfahren und Vorrichtung zur Einschaltstrombegrenzung in Gegentaktverstärkerendstufen
CN102497093A (zh) * 2011-11-11 2012-06-13 无锡华润上华科技有限公司 一种应用于功率因数校正器中的输出过压保护电路
US20170134017A1 (en) * 2013-11-26 2017-05-11 Powerbyproxi Limited Overcurrent protection circuit
WO2020143934A1 (en) 2019-01-10 2020-07-16 Telefonaktiebolaget Lm Ericsson (Publ) Bias circuit and power amplifier circuit
EP4169159A1 (en) 2020-06-22 2023-04-26 Telefonaktiebolaget LM ERICSSON (PUBL) Transmitter circuit

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1265157A (ko) * 1968-09-27 1972-03-01
GB1467057A (en) * 1973-05-24 1977-03-16 Rca Corp Amplifier with over-current protection
US3938008A (en) * 1974-09-18 1976-02-10 International Business Machines Corporation Common bus driver complementary protect circuit
US3924159A (en) * 1974-10-04 1975-12-02 Rca Corp Amplifier protection system
GB1537484A (en) * 1976-01-27 1978-12-29 Rca Corp Transistor amplifier with over-current prevention circuitry
GB1506881A (en) * 1975-02-24 1978-04-12 Rca Corp Current divider
US4063149A (en) * 1975-02-24 1977-12-13 Rca Corporation Current regulating circuits
US4021701A (en) * 1975-12-08 1977-05-03 Motorola, Inc. Transistor protection circuit
US4078207A (en) * 1977-01-07 1978-03-07 Rca Corporation Push-pull transistor amplifier with driver circuitry providing over-current protection
US4122401A (en) * 1977-07-14 1978-10-24 National Semiconductor Corporation High efficiency power amplifier circuit

Also Published As

Publication number Publication date
ATA44580A (de) 1990-08-15
NZ192727A (en) 1983-03-15
KR830001456B1 (ko) 1983-07-29
AU5481480A (en) 1980-08-07
AT392375B (de) 1991-03-25
FR2447629A1 (fr) 1980-08-22
AU527758B2 (en) 1983-03-24
FI73548C (fi) 1987-10-09
FR2447629B1 (fr) 1985-10-04
DE3003123A1 (de) 1980-08-07
IT1130234B (it) 1986-06-11
FI800176A7 (fi) 1980-07-30
ES8204565A1 (es) 1982-04-01
ES488056A0 (es) 1982-04-01
JPS6260847B2 (ko) 1987-12-18
SE8000492L (sv) 1980-07-30
GB2042297A (en) 1980-09-17
SE441881B (sv) 1985-11-11
DE3003123C2 (ko) 1987-07-09
US4225897A (en) 1980-09-30
FI73548B (fi) 1987-06-30
GB2042297B (en) 1983-03-23
JPS55102911A (en) 1980-08-06
IT8019490A0 (it) 1980-01-25

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