EP 0968566 A1 20000105 - CONTROL DEVICE FOR PRODUCING HARD TURN-ON PULSES FOR A GATE TURN-OFF THYRISTOR
Title (en)
CONTROL DEVICE FOR PRODUCING HARD TURN-ON PULSES FOR A GATE TURN-OFF THYRISTOR
Title (de)
ANSTEUEREINRICHTUNG ZUR ERZEUGUNG HARTER EINSCHALTIMPULSE FÜR EINEN ABSCHALTBAREN THYRISTOR
Title (fr)
DISPOSITIF DE COMMANDE DESTINE A PRODUIRE DE IMPULSIONS POINTUES DE DEBLOCAGE POUR UN THYRISTOR BLOCABLE PAR LA GACHETTE
Publication
Application
Priority
- DE 9800787 W 19980316
- DE 19711966 A 19970321
Abstract (en)
[origin: DE19711966C1] The invention relates to a control device for producing hard turn-on pulses for a gate turn-off thyristor (2) having a parallel circuit (4) consisting of a capacitor (C1) with an anti-parallel diode (D1), a first inductive resistor (L1) and a switching element (8) in addition to a recharge circuit (6). The parallel circuit (4) is electrically series connected to the output connection (10, 12) of the control device and the recharge circuit (6) is electrically series connected to the capacitor (C1). According to the invention, a second inductive resistor (L2) is connected upstream to the anti-parallel diode (D1). The value of the second inductive resistor (L2) is substantially greater than the value of the first inductive resistor (L1). A decoupling diode (D2) is connected between the inductive resistor (L1) and the switching element (8), thereby providing a control device which produces hard turn-on impulses with substantially fewer losses and substantially lower power requirements.
IPC 1-7
IPC 8 full level
H02M 1/08 (2006.01); H03K 17/73 (2006.01)
CPC (source: EP)
H02M 1/08 (2013.01); H03K 17/73 (2013.01)
Citation (search report)
See references of WO 9843350A1
Designated contracting state (EPC)
CH DE FR LI
DOCDB simple family (publication)
DE 19711966 C1 19980610; EP 0968566 A1 20000105; WO 9843350 A1 19981001
DOCDB simple family (application)
DE 19711966 A 19970321; DE 9800787 W 19980316; EP 98925401 A 19980316