SE441881B - Elektronisk overstromsskyddskrets - Google Patents

Elektronisk overstromsskyddskrets

Info

Publication number: SE441881B
Authority: SE; Sweden
Prior art keywords: transistor; emitter; base; current; transistors
Prior art date: 1979-01-29

Application number

SE8000492A

Other languages

English (en)

Swedish (sv)

Other versions

SE8000492L (sv

Inventor

L A Kaplan

Original Assignee

Rca 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.)

1979-01-29

Filing date

1980-01-22

Publication date

1985-11-11

1980-01-22 Application filed by Rca Corp filed Critical Rca Corp

1980-07-30 Publication of SE8000492L publication Critical patent/SE8000492L/

1985-11-11 Publication of SE441881B publication Critical patent/SE441881B/sv

Links

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)

SE8000492A 1979-01-29 1980-01-22 Elektronisk overstromsskyddskrets SE441881B (sv)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number	Publication Date
SE8000492L SE8000492L (sv)	1980-07-30
SE441881B true SE441881B (sv)	1985-11-11

Family

ID=21726554

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE8000492A SE441881B (sv)	1979-01-29	1980-01-22	Elektronisk overstromsskyddskrets

Country Status (13)

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

Families Citing this family (13)

* 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
US20170134017A1 (en) *	2013-11-26	2017-05-11	Powerbyproxi Limited	Overcurrent protection circuit
EP4398483A2 (en) *	2019-01-10	2024-07-10	Telefonaktiebolaget LM Ericsson (publ)	Bias circuit and power amplifier circuit

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1265157A (es) *	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
US4063149A (en) *	1975-02-24	1977-12-13	Rca Corporation	Current regulating circuits
GB1506881A (en) *	1975-02-24	1978-04-12	Rca Corp	Current divider
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

1979
- 1979-01-29 US US06/007,499 patent/US4225897A/en not_active Expired - Lifetime
1980
- 1980-01-22 FI FI800176A patent/FI73548C/fi not_active IP Right Cessation
- 1980-01-22 SE SE8000492A patent/SE441881B/sv not_active IP Right Cessation
- 1980-01-22 GB GB8002119A patent/GB2042297B/en not_active Expired
- 1980-01-22 AU AU54814/80A patent/AU527758B2/en not_active Ceased
- 1980-01-25 IT IT19490/80A patent/IT1130234B/it active
- 1980-01-28 NZ NZ192727A patent/NZ192727A/xx unknown
- 1980-01-28 JP JP924380A patent/JPS55102911A/ja active Granted
- 1980-01-28 KR KR1019800000303A patent/KR830001456B1/ko active
- 1980-01-28 AT AT445/80A patent/AT392375B/de not_active IP Right Cessation
- 1980-01-29 DE DE19803003123 patent/DE3003123A1/de active Granted
- 1980-01-29 FR FR8001871A patent/FR2447629B1/fr not_active Expired
- 1980-01-31 ES ES488056A patent/ES488056A0/es active Granted

Also Published As

Publication number	Publication date
SE8000492L (sv)	1980-07-30
GB2042297B (en)	1983-03-23
ATA44580A (de)	1990-08-15
FI73548B (fi)	1987-06-30
JPS6260847B2 (es)	1987-12-18
AU5481480A (en)	1980-08-07
KR830001456B1 (ko)	1983-07-29
JPS55102911A (en)	1980-08-06
IT1130234B (it)	1986-06-11
FI800176A (fi)	1980-07-30
NZ192727A (en)	1983-03-15
AU527758B2 (en)	1983-03-24
FR2447629A1 (fr)	1980-08-22
GB2042297A (en)	1980-09-17
ES8204565A1 (es)	1982-04-01
US4225897A (en)	1980-09-30
KR830002446A (ko)	1983-05-28
DE3003123A1 (de)	1980-08-07
DE3003123C2 (es)	1987-07-09
FI73548C (fi)	1987-10-09
FR2447629B1 (fr)	1985-10-04
AT392375B (de)	1991-03-25
ES488056A0 (es)	1982-04-01
IT8019490A0 (it)	1980-01-25

Legal Events

Date

Code

Title

Description

1995-01-31

NUG

Patent has lapsed

Ref document number: 8000492-2

Effective date: 19920806

Format of ref document f/p: F

Publication	Publication Date	Title
US3845405A (en)	1974-10-29	Composite transistor device with over current protection
US4714872A (en)	1987-12-22	Voltage reference for transistor constant-current source
US3825778A (en)	1974-07-23	Temperature-sensitive control circuit
US4000643A (en)	1977-01-04	Apparatus for producing a compensating voltage
SE441881B (sv)	1985-11-11	Elektronisk overstromsskyddskrets
US3290520A (en)	1966-12-06	Circuit for detecting amplitude threshold with means to keep threshold constant
EP0067844A1 (en)	1982-12-29	Solid state current sensing circuit
GB1568208A (en)	1980-05-29	Circuit arrangement for conducting at a supply terminal thereof a current the value of which is substantially independent of the voltage at said supply terminal
JPS58213515A (ja)	1983-12-12	差動増幅回路
US4045694A (en)	1977-08-30	Current divider
US5200692A (en)	1993-04-06	Apparatus for limiting current through a plurality of parallel transistors
SE450445B (sv)	1987-06-22	Integrerad forsterkarkoppling
US4103219A (en)	1978-07-25	Shunt voltage regulator
SE455558B (sv)	1988-07-18	Transistoriserad likriktarbryggkrets med stotstromsskydd
US2848564A (en)	1958-08-19	Temperature stabilized transistor amplifier
SE430842B (sv)	1983-12-12	Forsterkaranordning med instellbar forsterkning
US4352057A (en)	1982-09-28	Constant current source
US4204133A (en)	1980-05-20	Temperature-sensitive control circuits
US4177417A (en)	1979-12-04	Reference circuit for providing a plurality of regulated currents having desired temperature characteristics
US4251778A (en)	1981-02-17	Circuit with electrically controlled gain
US4429284A (en)	1984-01-31	Operational amplifier
US4025842A (en)	1977-05-24	Current divider provided temperature-dependent bias potential from current regulator
JPH0690656B2 (ja)	1994-11-14	基準電圧の形成回路
JP2643133B2 (ja)	1997-08-20	安定化電源回路
US4646029A (en)	1987-02-24	Variable-gain amplifying circuit