JPS4982950A - - Google Patents
Info
- Publication number
- JPS4982950A JPS4982950A JP48115418A JP11541873A JPS4982950A JP S4982950 A JPS4982950 A JP S4982950A JP 48115418 A JP48115418 A JP 48115418A JP 11541873 A JP11541873 A JP 11541873A JP S4982950 A JPS4982950 A JP S4982950A
- Authority
- JP
- Japan
- 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.)
- Pending
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
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- 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)
- Amplifiers (AREA)
- Circuits Of Receivers In General (AREA)
- Measurement Of Current Or Voltage (AREA)
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 |
|---|---|
| JPS4982950A true JPS4982950A (ro) | 1974-08-09 |
Family
ID=4095111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP48115418A Pending JPS4982950A (ro) | 1972-11-28 | 1973-10-16 |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3819951A (ro) |
| JP (1) | JPS4982950A (ro) |
| AU (1) | AU5994273A (ro) |
| BE (1) | BE805382A (ro) |
| CA (1) | CA954644A (ro) |
| DE (1) | DE2345116A1 (ro) |
| FR (1) | FR2208243B1 (ro) |
| IL (1) | IL43027A0 (ro) |
| IT (1) | IT999220B (ro) |
| NL (1) | NL7314973A (ro) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5165608U (ro) * | 1974-11-18 | 1976-05-24 |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| DE2931465C2 (de) * | 1979-08-02 | 1982-12-16 | Siemens AG, 1000 Berlin und 8000 München | Gleichrichterbrückenschaltung |
| DE3005383A1 (de) * | 1980-02-13 | 1981-08-20 | Siemens AG, 1000 Berlin und 8000 München | Halbleiter-spannungsverdopplerschaltung |
| 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 (ro) * | 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 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6712329A (ro) * | 1967-09-08 | 1969-03-11 | ||
| 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 |
-
1972
- 1972-11-28 CA CA157,645A patent/CA954644A/en not_active Expired
- 1972-12-27 US US00318760A patent/US3819951A/en not_active Expired - Lifetime
-
1973
- 1973-08-20 IL IL43027A patent/IL43027A0/xx unknown
- 1973-09-03 AU AU59942/73A patent/AU5994273A/en not_active Expired
- 1973-09-06 FR FR7332203A patent/FR2208243B1/fr not_active Expired
- 1973-09-07 DE DE19732345116 patent/DE2345116A1/de active Pending
- 1973-09-27 BE BE136098A patent/BE805382A/xx unknown
- 1973-10-16 JP JP48115418A patent/JPS4982950A/ja active Pending
- 1973-10-31 NL NL7314973A patent/NL7314973A/xx unknown
- 1973-11-05 IT IT30948/73A patent/IT999220B/it active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5165608U (ro) * | 1974-11-18 | 1976-05-24 |
Also Published As
| Publication number | Publication date |
|---|---|
| BE805382A (fr) | 1974-01-16 |
| IL43027A0 (en) | 1973-11-28 |
| IT999220B (it) | 1976-02-20 |
| US3819951A (en) | 1974-06-25 |
| NL7314973A (ro) | 1974-05-30 |
| FR2208243B1 (ro) | 1976-10-01 |
| AU5994273A (en) | 1975-03-06 |
| FR2208243A1 (ro) | 1974-06-21 |
| CA954644A (en) | 1974-09-10 |
| DE2345116A1 (de) | 1974-06-27 |