BE805382A - POLARITY PROTECTOR - Google Patents

POLARITY PROTECTOR

Info

Publication number
BE805382A
BE805382A BE136098A BE136098A BE805382A BE 805382 A BE805382 A BE 805382A BE 136098 A BE136098 A BE 136098A BE 136098 A BE136098 A BE 136098A BE 805382 A BE805382 A BE 805382A
Authority
BE
Belgium
Prior art keywords
polarity protector
protector
polarity
Prior art date
Application number
BE136098A
Other languages
French (fr)
Inventor
A D Moore
Original Assignee
Microsystems Int 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 Int Ltd filed Critical Microsystems Int Ltd
Publication of BE805382A publication Critical patent/BE805382A/en

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H11/00Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
    • H02H11/002Emergency 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
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M7/00Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12Conversion 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
    • H02M7/21Conversion 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
    • H02M7/217Conversion 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
    • H02M7/219Conversion 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
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M7/00Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12Conversion 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
    • H02M7/21Conversion 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
    • H02M7/217Conversion 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
    • H02M7/219Conversion 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
    • H02M7/2195Conversion 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/60Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6008Substation equipment, e.g. for use by subscribers including speech amplifiers in the transmitter circuit
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/60Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6016Substation equipment, e.g. for use by subscribers including speech amplifiers in the receiver circuit
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M19/00Current supply arrangements for telephone systems
    • H04M19/08Current supply arrangements for telephone systems with current supply sources at the substations
BE136098A 1972-11-28 1973-09-27 POLARITY PROTECTOR BE805382A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
BE805382A true BE805382A (en) 1974-01-16

Family

ID=4095111

Family Applications (1)

Application Number Title Priority Date Filing Date
BE136098A BE805382A (en) 1972-11-28 1973-09-27 POLARITY PROTECTOR

Country Status (10)

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

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5165608U (en) * 1974-11-18 1976-05-24
DE2639601C2 (en) * 1976-09-02 1985-03-07 Siemens AG, 1000 Berlin und 8000 München Bridge circuit with low voltage losses
US4086624A (en) * 1977-06-15 1978-04-25 Bell Telephone Laboratories Incorporated Current to voltage converter
DE2931465C2 (en) * 1979-08-02 1982-12-16 Siemens AG, 1000 Berlin und 8000 München Rectifier bridge circuit
DE3005383A1 (en) * 1980-02-13 1981-08-20 Siemens AG, 1000 Berlin und 8000 München Semiconductor voltage doubler circuit - has two transistors of similar conductivity type operated in push=pull by zero voltage circuit
US4319144A (en) * 1980-05-22 1982-03-09 Bell Telephone Laboratories, Incorporated Single polarity circuit
IT1211072B (en) * 1981-06-30 1989-09-29 Ates Componenti Elettron BRIDGE TRANSISTOR RECTIFIER CIRCUIT FOR TELEPHONE USE.
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 (en) * 1982-01-29 1989-11-22 Ates Componenti Elettron BRIDGE TRANSISTOR RECTIFIER CIRCUIT, WITH OVERCURRENT PROTECTION, FOR TELEPHONE USE.
US4763017A (en) * 1985-10-21 1988-08-09 American Standard Inc. Electronic bipolar interface circuit
CH677408A5 (en) * 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 (en) * 2003-10-31 2005-05-26 Aisin Seiki Co Ltd Current output sensor of two-wire system, and ic for the same
CA2613400C (en) * 2005-06-24 2014-08-26 The Flewelling Ford Family Trust A method and device for lowering the impedance of a fet (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 (en) * 2011-08-31 2018-02-05 삼성전자 주식회사 Apparatus and method for controlling a microphone in terminal device
JP5937436B2 (en) * 2012-06-28 2016-06-22 アルプス電気株式会社 Protection circuit
DE102015207677A1 (en) * 2015-04-27 2016-10-27 Tridonic Gmbh & Co Kg Bulb converter with polarity reversal protection

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6712329A (en) * 1967-09-08 1969-03-11
DE1941363A1 (en) * 1969-08-14 1971-02-25 Licentia Gmbh Circuit arrangement for the polarity-correct connection of a speech capsule equipped with an amplifier in telephone systems
US3700999A (en) * 1972-01-11 1972-10-24 Us Army Automatic battery polarizing circuit

Also Published As

Publication number Publication date
DE2345116A1 (en) 1974-06-27
AU5994273A (en) 1975-03-06
FR2208243B1 (en) 1976-10-01
US3819951A (en) 1974-06-25
NL7314973A (en) 1974-05-30
JPS4982950A (en) 1974-08-09
CA954644A (en) 1974-09-10
FR2208243A1 (en) 1974-06-21
IT999220B (en) 1976-02-20
IL43027A0 (en) 1973-11-28

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