DE3003123C2 - - Google Patents
Info
- Publication number
- DE3003123C2 DE3003123C2 DE3003123A DE3003123A DE3003123C2 DE 3003123 C2 DE3003123 C2 DE 3003123C2 DE 3003123 A DE3003123 A DE 3003123A DE 3003123 A DE3003123 A DE 3003123A DE 3003123 C2 DE3003123 C2 DE 3003123C2
- Authority
- DE
- Germany
- Prior art keywords
- transistor
- current
- circuit
- emitter
- base
- 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
Links
- 230000007704 transition Effects 0.000 description 9
- 239000008186 active pharmaceutical agent Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003278 mimic effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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)
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 |
|---|---|
| DE3003123A1 DE3003123A1 (de) | 1980-08-07 |
| DE3003123C2 true DE3003123C2 (en, 2012) | 1987-07-09 |
Family
ID=21726554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19803003123 Granted DE3003123A1 (de) | 1979-01-29 | 1980-01-29 | Ueberstromschutzschalter fuer einen leistungstransistor |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US4225897A (en, 2012) |
| JP (1) | JPS55102911A (en, 2012) |
| KR (1) | KR830001456B1 (en, 2012) |
| AT (1) | AT392375B (en, 2012) |
| AU (1) | AU527758B2 (en, 2012) |
| DE (1) | DE3003123A1 (en, 2012) |
| ES (1) | ES8204565A1 (en, 2012) |
| FI (1) | FI73548C (en, 2012) |
| FR (1) | FR2447629B1 (en, 2012) |
| GB (1) | GB2042297B (en, 2012) |
| IT (1) | IT1130234B (en, 2012) |
| NZ (1) | NZ192727A (en, 2012) |
| SE (1) | SE441881B (en, 2012) |
Families Citing this family (15)
| 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 |
| CN102497093A (zh) * | 2011-11-11 | 2012-06-13 | 无锡华润上华科技有限公司 | 一种应用于功率因数校正器中的输出过压保护电路 |
| EP3075047A4 (en) * | 2013-11-26 | 2017-11-01 | PowerbyProxi Limited | Overcurrent protection circuit |
| EP3909127B1 (en) | 2019-01-10 | 2024-05-29 | Telefonaktiebolaget Lm Ericsson (Publ) | Bias circuit and power amplifier circuit |
| US12113558B2 (en) | 2020-06-22 | 2024-10-08 | Telefonaktiebolaget Lm Ericsson (Publ) | Transmitter circuit |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1265157A (en, 2012) * | 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 |
| GB1506881A (en) * | 1975-02-24 | 1978-04-12 | Rca Corp | Current divider |
| US4063149A (en) * | 1975-02-24 | 1977-12-13 | Rca Corporation | Current regulating circuits |
| 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 SE SE8000492A patent/SE441881B/sv not_active IP Right Cessation
- 1980-01-22 AU AU54814/80A patent/AU527758B2/en not_active Ceased
- 1980-01-22 GB GB8002119A patent/GB2042297B/en not_active Expired
- 1980-01-22 FI FI800176A patent/FI73548C/fi not_active IP Right Cessation
- 1980-01-25 IT IT19490/80A patent/IT1130234B/it active
- 1980-01-28 KR KR1019800000303A patent/KR830001456B1/ko not_active Expired
- 1980-01-28 NZ NZ192727A patent/NZ192727A/xx unknown
- 1980-01-28 JP JP924380A patent/JPS55102911A/ja active Granted
- 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/ES8204565A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE3003123A1 (de) | 1980-08-07 |
| KR830001456B1 (ko) | 1983-07-29 |
| GB2042297A (en) | 1980-09-17 |
| SE441881B (sv) | 1985-11-11 |
| GB2042297B (en) | 1983-03-23 |
| ES488056A0 (es) | 1982-04-01 |
| NZ192727A (en) | 1983-03-15 |
| ATA44580A (de) | 1990-08-15 |
| JPS6260847B2 (en, 2012) | 1987-12-18 |
| ES8204565A1 (es) | 1982-04-01 |
| KR830002446A (ko) | 1983-05-28 |
| FR2447629A1 (fr) | 1980-08-22 |
| AU527758B2 (en) | 1983-03-24 |
| AU5481480A (en) | 1980-08-07 |
| FI73548C (fi) | 1987-10-09 |
| FI73548B (fi) | 1987-06-30 |
| IT8019490A0 (it) | 1980-01-25 |
| FI800176A7 (fi) | 1980-07-30 |
| US4225897A (en) | 1980-09-30 |
| FR2447629B1 (fr) | 1985-10-04 |
| IT1130234B (it) | 1986-06-11 |
| SE8000492L (sv) | 1980-07-30 |
| JPS55102911A (en) | 1980-08-06 |
| AT392375B (de) | 1991-03-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| 8125 | Change of the main classification |
Ipc: H02H 7/20 |
|
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |