FR2208243A1 - - Google Patents

Info

Publication number
FR2208243A1
FR2208243A1 FR7332203A FR7332203A FR2208243A1 FR 2208243 A1 FR2208243 A1 FR 2208243A1 FR 7332203 A FR7332203 A FR 7332203A FR 7332203 A FR7332203 A FR 7332203A FR 2208243 A1 FR2208243 A1 FR 2208243A1
Authority
FR
France
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
FR7332203A
Other languages
French (fr)
Other versions
FR2208243B1 (cs
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.)
Microsystems International Ltd
Original Assignee
Microsystems International Ltd
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 Microsystems International Ltd filed Critical Microsystems International Ltd
Publication of FR2208243A1 publication Critical patent/FR2208243A1/fr
Application granted granted Critical
Publication of FR2208243B1 publication Critical patent/FR2208243B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
    • H02H11/002—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of inverted polarity or connection; with switching for obtaining correct connection
    • 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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M7/219—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a bridge configuration
    • 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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M7/219—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a bridge configuration
    • H02M7/2195—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a bridge configuration the switches being synchronously commutated at the same frequency of the AC input voltage
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6008—Substation equipment, e.g. for use by subscribers including speech amplifiers in the transmitter circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6016—Substation equipment, e.g. for use by subscribers including speech amplifiers in the receiver circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Amplifiers (AREA)
  • Circuits Of Receivers In General (AREA)
FR7332203A 1972-11-28 1973-09-06 Expired FR2208243B1 (cs)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA157,645A CA954644A (en) 1972-11-28 1972-11-28 Polarity guard

Publications (2)

Publication Number Publication Date
FR2208243A1 true FR2208243A1 (cs) 1974-06-21
FR2208243B1 FR2208243B1 (cs) 1976-10-01

Family

ID=4095111

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7332203A Expired FR2208243B1 (cs) 1972-11-28 1973-09-06

Country Status (10)

Country Link
US (1) US3819951A (cs)
JP (1) JPS4982950A (cs)
AU (1) AU5994273A (cs)
BE (1) BE805382A (cs)
CA (1) CA954644A (cs)
DE (1) DE2345116A1 (cs)
FR (1) FR2208243B1 (cs)
IL (1) IL43027A0 (cs)
IT (1) IT999220B (cs)
NL (1) NL7314973A (cs)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0023683A1 (de) * 1979-08-02 1981-02-11 Siemens Aktiengesellschaft Gleichrichterbrückenschaltung
DE3005383A1 (de) * 1980-02-13 1981-08-20 Siemens AG, 1000 Berlin und 8000 München Halbleiter-spannungsverdopplerschaltung

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5165608U (cs) * 1974-11-18 1976-05-24
DE2639601C2 (de) * 1976-09-02 1985-03-07 Siemens AG, 1000 Berlin und 8000 München Brückenschaltung mit geringen Spannungsverlusten
US4086624A (en) * 1977-06-15 1978-04-25 Bell Telephone Laboratories Incorporated Current to voltage converter
US4319144A (en) * 1980-05-22 1982-03-09 Bell Telephone Laboratories, Incorporated Single polarity circuit
IT1211072B (it) * 1981-06-30 1989-09-29 Ates Componenti Elettron Circuito raddrizzatore a ponte di transistori per uso telefonico.
US4423456A (en) * 1981-11-13 1983-12-27 Medtronic, Inc. Battery reversal protection
US4420786A (en) * 1981-11-16 1983-12-13 Motorola, Inc. Polarity guard circuit
US4473757A (en) * 1981-12-08 1984-09-25 Intersil, Inc. Circuit means for converting a bipolar input to a unipolar output
IT1212518B (it) * 1982-01-29 1989-11-22 Ates Componenti Elettron Circuito raddrizzatore a ponte di transistori, con protezione controle sovracorrenti, per uso telefonico.
US4763017A (en) * 1985-10-21 1988-08-09 American Standard Inc. Electronic bipolar interface circuit
CH677408A5 (cs) * 1988-11-18 1991-05-15 Baumer Electric Ag
GB9211031D0 (en) * 1992-05-22 1992-07-08 Plessey Telecomm Telephone circuit
TW479904U (en) * 2000-10-09 2002-03-11 Sunplus Technology Co Ltd Diode circuit to simulate zero cutoff voltage and the rectifying circuit having zero cutoff voltage characteristics
JP2005134283A (ja) * 2003-10-31 2005-05-26 Aisin Seiki Co Ltd ２線式の電流出力センサ及び該センサ用ｉｃ
EP1900086A4 (en) * 2005-06-24 2010-04-07 Flewelling Ford Family Trust METHOD AND DEVICE FOR LOWERING IMPEDANCE OF FIELD EFFECT TRANSISTOR
US8054049B1 (en) * 2007-08-30 2011-11-08 Avaya Inc. Using battery orientation to control mode of operation
US8792260B2 (en) * 2010-09-27 2014-07-29 Semiconductor Energy Laboratory Co., Ltd. Rectifier circuit and semiconductor device using the same
KR101825567B1 (ko) * 2011-08-31 2018-02-05 삼성전자 주식회사 단말장치의 마이크로폰 극성 제어장치 및 방법
JP5937436B2 (ja) * 2012-06-28 2016-06-22 アルプス電気株式会社 保護回路
DE102015207677A1 (de) * 2015-04-27 2016-10-27 Tridonic Gmbh & Co Kg Leuchtmittel-Konverter mit Verpolschutzschaltung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1581825A (cs) * 1967-09-08 1969-09-19
DE1941363A1 (de) * 1969-08-14 1971-02-25 Licentia Gmbh Schaltungsanordnung fuer den polaritaetsrichtigen Anschluss einer mit einem Verstaerker ausgeruesteten Sprechkapsel in Fernsprechanlagen
US3700999A (en) * 1972-01-11 1972-10-24 Us Army Automatic battery polarizing circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1581825A (cs) * 1967-09-08 1969-09-19
DE1941363A1 (de) * 1969-08-14 1971-02-25 Licentia Gmbh Schaltungsanordnung fuer den polaritaetsrichtigen Anschluss einer mit einem Verstaerker ausgeruesteten Sprechkapsel in Fernsprechanlagen
US3700999A (en) * 1972-01-11 1972-10-24 Us Army Automatic battery polarizing circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0023683A1 (de) * 1979-08-02 1981-02-11 Siemens Aktiengesellschaft Gleichrichterbrückenschaltung
DE3005383A1 (de) * 1980-02-13 1981-08-20 Siemens AG, 1000 Berlin und 8000 München Halbleiter-spannungsverdopplerschaltung

Also Published As

Publication number Publication date
CA954644A (en) 1974-09-10
BE805382A (fr) 1974-01-16
IT999220B (it) 1976-02-20
JPS4982950A (cs) 1974-08-09
NL7314973A (cs) 1974-05-30
IL43027A0 (en) 1973-11-28
US3819951A (en) 1974-06-25
FR2208243B1 (cs) 1976-10-01
AU5994273A (en) 1975-03-06
DE2345116A1 (de) 1974-06-27

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Legal Events

Date Code Title Description
ST Notification of lapse