IT1236534B - Circuito di protezione da sovratensioni negative, in particolare per stadi di uscita. - Google Patents
Circuito di protezione da sovratensioni negative, in particolare per stadi di uscita.Info
- Publication number
- IT1236534B IT1236534B IT02196689A IT2196689A IT1236534B IT 1236534 B IT1236534 B IT 1236534B IT 02196689 A IT02196689 A IT 02196689A IT 2196689 A IT2196689 A IT 2196689A IT 1236534 B IT1236534 B IT 1236534B
- Authority
- IT
- Italy
- Prior art keywords
- protection circuit
- overvoltage protection
- output stages
- negative overvoltage
- negative
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/045—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage adapted to a particular application and not provided for elsewhere
- H02H9/047—Free-wheeling circuits
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT02196689A IT1236534B (it) | 1989-10-09 | 1989-10-09 | Circuito di protezione da sovratensioni negative, in particolare per stadi di uscita. |
DE69018362T DE69018362T2 (de) | 1989-10-09 | 1990-10-04 | Schutzschaltung gegen negative Überspannung, insbesondere für Ausgangsstufen. |
EP90118913A EP0422486B1 (en) | 1989-10-09 | 1990-10-04 | Negative overvoltage protection circuit, in particular for output stages |
US07/593,430 US5182470A (en) | 1989-10-09 | 1990-10-05 | Negative overvoltage protection circuit, in particular for output stages |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT02196689A IT1236534B (it) | 1989-10-09 | 1989-10-09 | Circuito di protezione da sovratensioni negative, in particolare per stadi di uscita. |
Publications (3)
Publication Number | Publication Date |
---|---|
IT8921966A0 IT8921966A0 (it) | 1989-10-09 |
IT8921966A1 IT8921966A1 (it) | 1991-04-09 |
IT1236534B true IT1236534B (it) | 1993-03-11 |
Family
ID=11189504
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT02196689A IT1236534B (it) | 1989-10-09 | 1989-10-09 | Circuito di protezione da sovratensioni negative, in particolare per stadi di uscita. |
Country Status (4)
Country | Link |
---|---|
US (1) | US5182470A (it) |
EP (1) | EP0422486B1 (it) |
DE (1) | DE69018362T2 (it) |
IT (1) | IT1236534B (it) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5610079A (en) * | 1995-06-19 | 1997-03-11 | Reliance Electric Industrial Company | Self-biased moat for parasitic current suppression in integrated circuits |
DE10314601B4 (de) * | 2003-03-31 | 2005-04-21 | Infineon Technologies Ag | Halbleiterschaltung mit einer Schutzschaltung gegen Verpolung bzw. Über- oder Unterspannung am Ausgang |
JP5716346B2 (ja) * | 2010-10-13 | 2015-05-13 | 株式会社リコー | 信号バッファ回路とセンサ制御基板と画像読取装置および画像形成装置 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2029901A1 (de) * | 1970-06-18 | 1971-12-23 | Siemens Ag | Schaltungsanordnung zur Störsignalunterdrückung bzw. -dämpfung |
JPS5528011Y1 (it) * | 1970-11-16 | 1980-07-04 | ||
US4058760A (en) * | 1976-08-16 | 1977-11-15 | Rca Corporation | Reference potential generators |
JPS5939904B2 (ja) * | 1978-09-28 | 1984-09-27 | 株式会社東芝 | 半導体装置 |
FR2445642A1 (fr) * | 1978-12-29 | 1980-07-25 | Radiotechnique Compelec | Agencement de securite en cas de chute d'une tension d'alimentation continue |
JPS5791550A (en) * | 1980-11-28 | 1982-06-07 | Fujitsu Ltd | Integrated circuit with protecting circuit |
JPS57104325A (en) * | 1980-12-20 | 1982-06-29 | Fujitsu Ltd | Ecl circuit |
JPS583183A (ja) * | 1981-06-30 | 1983-01-08 | Fujitsu Ltd | 半導体装置の出力回路 |
US4477737A (en) * | 1982-07-14 | 1984-10-16 | Motorola, Inc. | Voltage generator circuit having compensation for process and temperature variation |
JPS60217727A (ja) * | 1984-04-13 | 1985-10-31 | Hitachi Micro Comput Eng Ltd | 論理回路 |
US4551687A (en) * | 1984-08-07 | 1985-11-05 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Amplifier for measuring low-level signals in the presence of high common mode voltage |
JPS61260313A (ja) * | 1985-05-15 | 1986-11-18 | Asia Electron Kk | 電流リミツト優先型定電流源装置 |
JPS62109427A (ja) * | 1985-11-07 | 1987-05-20 | Mitsubishi Electric Corp | 半導体集積回路装置 |
IT1200824B (it) * | 1985-11-08 | 1989-01-27 | Sgs Microelettronica Spa | Integratore di dati di campionamento a capacita' commutate utilizzante un amplificatore a guadagno unitario |
US4804861A (en) * | 1988-02-11 | 1989-02-14 | Motorola, Inc. | Multifunction onboard input/output termination |
JPH0289357A (ja) * | 1988-09-27 | 1990-03-29 | Nec Corp | 半導体回路 |
US4987327A (en) * | 1989-05-30 | 1991-01-22 | Motorola, Inc. | Apparatus for adjusting DC offset voltage |
-
1989
- 1989-10-09 IT IT02196689A patent/IT1236534B/it active IP Right Grant
-
1990
- 1990-10-04 EP EP90118913A patent/EP0422486B1/en not_active Expired - Lifetime
- 1990-10-04 DE DE69018362T patent/DE69018362T2/de not_active Expired - Fee Related
- 1990-10-05 US US07/593,430 patent/US5182470A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5182470A (en) | 1993-01-26 |
IT8921966A0 (it) | 1989-10-09 |
IT8921966A1 (it) | 1991-04-09 |
EP0422486A2 (en) | 1991-04-17 |
EP0422486B1 (en) | 1995-04-05 |
EP0422486A3 (en) | 1991-08-28 |
DE69018362T2 (de) | 1995-11-23 |
DE69018362D1 (de) | 1995-05-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19971030 |