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'alimentazioneInfo
- 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
Links
- 230000009849 deactivation Effects 0.000 abstract 1
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
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)
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)
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 (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61135159A (ja) * | 1984-12-05 | 1986-06-23 | Mitsubishi Electric Corp | 半導体集積回路 |
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. |
JPH1018238A (ja) * | 1996-06-28 | 1998-01-20 | Bridgestone Corp | 防音ユニット |
-
1991
- 1991-05-09 IT ITMI911266A patent/IT1248382B/it active IP Right Grant
-
1992
- 1992-05-02 EP EP92201230A patent/EP0512631B1/en not_active Expired - Lifetime
- 1992-05-02 DE DE69221529T patent/DE69221529T2/de not_active Expired - Fee Related
- 1992-05-08 JP JP11614492A patent/JP3177789B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0512631A3 (en) | 1993-05-26 |
ITMI911266A1 (it) | 1992-11-09 |
DE69221529D1 (de) | 1997-09-18 |
JPH05168146A (ja) | 1993-07-02 |
JP3177789B2 (ja) | 2001-06-18 |
ITMI911266A0 (it) | 1991-05-09 |
EP0512631B1 (en) | 1997-08-13 |
DE69221529T2 (de) | 1998-03-12 |
EP0512631A2 (en) | 1992-11-11 |
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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: 19970530 |