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
Application number
IT02196689A
Other languages
English (en)
Other versions
IT8921966A0 (it
IT8921966A1 (it
Original Assignee
Sgs Thomson Microelectronics
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 Sgs Thomson Microelectronics filed Critical Sgs Thomson Microelectronics
Priority to IT02196689A priority Critical patent/IT1236534B/it
Publication of IT8921966A0 publication Critical patent/IT8921966A0/it
Priority to DE69018362T priority patent/DE69018362T2/de
Priority to EP90118913A priority patent/EP0422486B1/en
Priority to US07/593,430 priority patent/US5182470A/en
Publication of IT8921966A1 publication Critical patent/IT8921966A1/it
Application granted granted Critical
Publication of IT1236534B publication Critical patent/IT1236534B/it

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
IT02196689A 1989-10-09 1989-10-09 Circuito di protezione da sovratensioni negative, in particolare per stadi di uscita. IT1236534B (it)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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