IT1248382B - Circuito di protezione contro l'aumento della corrente di uscita per un circuito integrato comprendente un dispositivo di potenza che pilota un carico risonante collegato ad un'alimentazione - Google Patents

Circuito di protezione contro l'aumento della corrente di uscita per un circuito integrato comprendente un dispositivo di potenza che pilota un carico risonante collegato ad un'alimentazione

Info

Publication number
IT1248382B
IT1248382B ITMI911266A ITMI911266A IT1248382B IT 1248382 B IT1248382 B IT 1248382B IT MI911266 A ITMI911266 A IT MI911266A IT MI911266 A ITMI911266 A IT MI911266A IT 1248382 B IT1248382 B IT 1248382B
Authority
IT
Italy
Prior art keywords
power device
drives
protection circuit
output current
circuit
Prior art date
Application number
ITMI911266A
Other languages
English (en)
Inventor
Sergio Palara
Stefano Sueri
Original Assignee
Cons Ric Microelettronica
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 Cons Ric Microelettronica filed Critical Cons Ric Microelettronica
Priority to ITMI911266A priority Critical patent/IT1248382B/it
Publication of ITMI911266A0 publication Critical patent/ITMI911266A0/it
Priority to DE69221529T priority patent/DE69221529T2/de
Priority to EP92201230A priority patent/EP0512631B1/en
Priority to JP11614492A priority patent/JP3177789B2/ja
Publication of ITMI911266A1 publication Critical patent/ITMI911266A1/it
Application granted granted Critical
Publication of IT1248382B publication Critical patent/IT1248382B/it
Priority to US08/469,379 priority patent/US5636097A/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
    • H03K3/28—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback
    • H03K3/281—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator
    • H03K3/286—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator bistable
    • H03K3/2865—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator bistable ensuring a predetermined initial state when the supply voltage has been applied; storing the actual state when the supply voltage fails
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
    • H03K17/082—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit
    • H03K17/0826—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit in bipolar transistor switches

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electronic Switches (AREA)
  • Protection Of Static Devices (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

E' descritto un circuito di protezione contro l'aumento della corrente di uscita per un circuito integrato comprendente un dispositivo di potenza (3) che pilota un carico risonante (L) collegato ad un'alimentazione e un circuito di comando (2) per l'accensione e lo spegnimento del dispositivo di potenza (3). Il circuito di protezione comprende un circuito di bloccaggio (1) atto a provocare la disattivazione del circuito di comando (2) e lo spegnimento del dispositivo di potenza (3) quando la corrente che percorre il dispositivo di potenza (3) raggiunge un valore massimo prestabilito. Il circuito di protezione comprende inoltre primi e secondi mezzi circuitali (R1, C1, 8, E1, T1, C2, TP4) atti a controllare il funzionamento del circuito di bloccaggio (1) in corrispondenza di un primo e un secondo sottomassa (V1, V2) della tensione (Vc) ai capi del dispositivo di potenza (3).(Fig. 1)
ITMI911266A 1991-05-09 1991-05-09 Circuito di protezione contro l'aumento della corrente di uscita per un circuito integrato comprendente un dispositivo di potenza che pilota un carico risonante collegato ad un'alimentazione IT1248382B (it)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ITMI911266A IT1248382B (it) 1991-05-09 1991-05-09 Circuito di protezione contro l'aumento della corrente di uscita per un circuito integrato comprendente un dispositivo di potenza che pilota un carico risonante collegato ad un'alimentazione
DE69221529T DE69221529T2 (de) 1991-05-09 1992-05-02 Schaltkreis zum Schutz gegen einen Anstieg des Ausgangsstroms einer integrierten Schaltung, die ein Leistungselement beinhaltet, das eine an eine Leistungsversorgung geschaltete resonante Last steuert
EP92201230A EP0512631B1 (en) 1991-05-09 1992-05-02 Circuit for protection against the increase of the output current for an integrated circuit comprising a power device driving a resonant load connected to a power supply
JP11614492A JP3177789B2 (ja) 1991-05-09 1992-05-08 共振負荷を駆動する電力装置の保護回路を有する集積回路
US08/469,379 US5636097A (en) 1991-05-09 1995-06-06 Protective circuit for semiconductor power device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI911266A IT1248382B (it) 1991-05-09 1991-05-09 Circuito di protezione contro l'aumento della corrente di uscita per un circuito integrato comprendente un dispositivo di potenza che pilota un carico risonante collegato ad un'alimentazione

Publications (3)

Publication Number Publication Date
ITMI911266A0 ITMI911266A0 (it) 1991-05-09
ITMI911266A1 ITMI911266A1 (it) 1992-11-09
IT1248382B true IT1248382B (it) 1995-01-11

Family

ID=11359867

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI911266A IT1248382B (it) 1991-05-09 1991-05-09 Circuito di protezione contro l'aumento della corrente di uscita per un circuito integrato comprendente un dispositivo di potenza che pilota un carico risonante collegato ad un'alimentazione

Country Status (4)

Country Link
EP (1) EP0512631B1 (it)
JP (1) JP3177789B2 (it)
DE (1) DE69221529T2 (it)
IT (1) IT1248382B (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4415517B2 (ja) * 2001-08-07 2010-02-17 株式会社デンソー 内燃機関用点火装置
CN110086454B (zh) * 2019-04-12 2022-11-18 科华数据股份有限公司 一种功率模块的过载控制装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0260120A3 (en) * 1986-09-10 1989-11-02 S & C ELECTRIC COMPANY Control circuit with coordination provisions
FR2632070B1 (fr) * 1988-05-26 1990-11-23 Bendix Electronics Sa Circuit de commande de l'alimentation d'une charge electrique, a dispositif de detection d'un court-circuit de la charge
IT1229318B (it) * 1989-05-02 1991-08-08 Sgs Thomson Microelectronics Dispositivo di protezione contro il breakdown di transistori bipolari in un circuito integrato di pilotaggio per dispositivo di potenza con carico risonante sul collettore.

Also Published As

Publication number Publication date
EP0512631A3 (en) 1993-05-26
ITMI911266A1 (it) 1992-11-09
EP0512631A2 (en) 1992-11-11
DE69221529T2 (de) 1998-03-12
JPH05168146A (ja) 1993-07-02
DE69221529D1 (de) 1997-09-18
ITMI911266A0 (it) 1991-05-09
EP0512631B1 (en) 1997-08-13
JP3177789B2 (ja) 2001-06-18

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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: 19970530