CA1107349A - Protective circuit for a switching regulator - Google Patents

Protective circuit for a switching regulator

Info

Publication number
CA1107349A
CA1107349A CA312,643A CA312643A CA1107349A CA 1107349 A CA1107349 A CA 1107349A CA 312643 A CA312643 A CA 312643A CA 1107349 A CA1107349 A CA 1107349A
Authority
CA
Canada
Prior art keywords
transformer
magnetic core
protective circuit
switching transistor
switching regulator
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
CA312,643A
Other languages
English (en)
French (fr)
Inventor
Akio Koizumi
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.)
Sony Corp
Original Assignee
Sony 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
Priority claimed from JP12034377A external-priority patent/JPS5454226A/ja
Priority claimed from JP52130669A external-priority patent/JPS5952627B2/ja
Application filed by Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of CA1107349A publication Critical patent/CA1107349A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/02—Adaptations of transformers or inductances for specific applications or functions for non-linear operation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
    • 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
    • H02H7/1213—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 for DC-DC converters
    • 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
    • H02M3/00—Conversion of DC power input into DC power output
    • H02M3/22—Conversion of DC power input into DC power output with intermediate conversion into AC
    • H02M3/24—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
    • H02M3/28—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC
    • H02M3/325—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33507—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Dc-Dc Converters (AREA)
  • Coils Or Transformers For Communication (AREA)
CA312,643A 1977-10-06 1978-10-04 Protective circuit for a switching regulator Expired CA1107349A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP120343/77 1977-10-06
JP12034377A JPS5454226A (en) 1977-10-06 1977-10-06 Protective system for switching regulator system power source
JP52130669A JPS5952627B2 (ja) 1977-10-31 1977-10-31 スイツチング方式安定化電源装置の保護装置
JP130669/77 1977-10-31

Publications (1)

Publication Number Publication Date
CA1107349A true CA1107349A (en) 1981-08-18

Family

ID=26457943

Family Applications (1)

Application Number Title Priority Date Filing Date
CA312,643A Expired CA1107349A (en) 1977-10-06 1978-10-04 Protective circuit for a switching regulator

Country Status (7)

Country Link
US (1) US4210947A (enExample)
AU (1) AU524023B2 (enExample)
CA (1) CA1107349A (enExample)
DE (1) DE2843705A1 (enExample)
FR (1) FR2405575B1 (enExample)
GB (1) GB2005496B (enExample)
NL (1) NL188610C (enExample)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4336582A (en) * 1980-03-20 1982-06-22 Bell Telephone Laboratories, Incorporated Energy saving DC-DC converter circuit
DE3169193D1 (en) * 1980-10-29 1985-04-11 Procter & Gamble Aluminosilicate-agglomerates and detergent compositions containing them
US4376969A (en) * 1981-03-11 1983-03-15 General Electric Company Control signal and isolation circuits
JPS59201675A (ja) * 1983-04-25 1984-11-15 エヌ・シ−・ア−ル・コ−ポレ−シヨン 直流安定化電源用発振周波数安定化方法
US4725937A (en) * 1985-01-08 1988-02-16 Westinghouse Electric Corp. Low power dissipation analog current loop output circuit
US4774584A (en) * 1985-12-21 1988-09-27 Blaupunkt-Werke Gmbh High-voltage power supply for a picture tube
CA1287103C (en) * 1986-04-22 1991-07-30 Jim Pinard Cmos latch-up recovery circuit
NL8701515A (nl) * 1987-06-29 1989-01-16 Hollandse Signaalapparaten Bv Geschakelde helixvoeding voor een twt.
US4761724A (en) * 1987-06-29 1988-08-02 The United States As Represented By The United States Department Of Energy Transformer coupling for transmitting direct current through a barrier
CA2030848C (en) * 1989-11-27 2002-06-25 John W. Pitre, Jr. Luminous tube protection circuit
EP0446490B1 (en) * 1990-03-12 1994-07-13 Alcatel N.V. Switching converter
JPH04286657A (ja) * 1991-03-18 1992-10-12 Fujitsu Ltd 圧電素子の異常検出回路
US5452173A (en) * 1992-09-08 1995-09-19 Challenge Technologies, Inc. Diagnostic circuit protection device
GB2280071A (en) * 1993-07-01 1995-01-18 Thomson Consumer Electronics Protection circuit for a power supply within a TV receiver
CA2104568A1 (en) * 1993-08-20 1995-02-21 Ivan Meszlenyi Thermal shutdown for power converters
US5917690A (en) * 1996-06-03 1999-06-29 Scientific-Atlanta, Inc. Regulated current power supply with isolated secondary and output current limiting
US5835361A (en) * 1997-04-16 1998-11-10 Thomson Consumer Electronics, Inc. Switch-mode power supply with over-current protection
JP3198995B2 (ja) * 1997-08-25 2001-08-13 株式会社村田製作所 過電流保護回路
US6606228B1 (en) 2000-11-27 2003-08-12 Ametek, Inc. Fault detection circuit for use with a power control device
US20040032315A1 (en) * 2002-08-19 2004-02-19 Lewis Illingworth Variable inductor responsive to AC current level
GB0402319D0 (en) * 2004-02-03 2004-03-10 M & Fc Holdings Llc Wide range power supply for polyphase electricity meter
US7310251B2 (en) * 2006-02-24 2007-12-18 System General Corp. Control circuit having two-level under voltage lockout threshold to improve the protection of power supply
DE102010000939A1 (de) * 2010-01-15 2011-07-21 Tridonic Ag Leuchtmittel-Betriebsgerät mit temperaturabhängiger Schutzschaltung
US8929053B2 (en) * 2010-09-13 2015-01-06 William Henry Morong Direct-current current transformer
JP6361884B2 (ja) 2015-04-14 2018-07-25 株式会社オートネットワーク技術研究所 リアクトル、及びリアクトルの製造方法
US10938302B2 (en) * 2017-10-19 2021-03-02 Ford Global Technologies, Llc Elimination of power inductor thermistor with variable air gap
US11631518B2 (en) * 2019-08-29 2023-04-18 Ford Global Technologies, Llc Power inductor with variable width air gap

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU406572B2 (en) * 1967-02-09 1970-10-12 Switched voltage regulated power supply
JPS5241521Y2 (enExample) * 1973-06-29 1977-09-20
GB1473197A (en) * 1974-10-23 1977-05-11 Ferranti Ltd Power converting systems
JPS5512261Y2 (enExample) * 1974-11-14 1980-03-17
JPS5855751B2 (ja) * 1976-01-29 1983-12-12 ソニー株式会社 電源回路
DE2613896C3 (de) * 1976-03-31 1984-08-02 Siemens AG, 1000 Berlin und 8000 München Impulsbreitengesteuerter Gleichstrom-Transistordurchflußumrichter mit einer Strombegrenzungsschaltung

Also Published As

Publication number Publication date
DE2843705C2 (enExample) 1988-11-24
NL7810091A (nl) 1979-04-10
AU4046578A (en) 1980-04-17
NL188610B (nl) 1992-03-02
US4210947A (en) 1980-07-01
AU524023B2 (en) 1982-08-26
GB2005496B (en) 1982-03-03
NL188610C (nl) 1992-08-03
FR2405575B1 (fr) 1985-10-11
FR2405575A1 (fr) 1979-05-04
DE2843705A1 (de) 1979-04-12
GB2005496A (en) 1979-04-19

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Legal Events

Date Code Title Description
MKEX Expiry