EP 0922331 A1 19990616 - PROCESS AND DEVICE FOR OPTIMIZING THE POWER-DOWN CYCLE OF A NON-ENGAGING, INTERRUPTABLE POWER SEMICONDUCTOR SWITCH
Title (en)
PROCESS AND DEVICE FOR OPTIMIZING THE POWER-DOWN CYCLE OF A NON-ENGAGING, INTERRUPTABLE POWER SEMICONDUCTOR SWITCH
Title (de)
VERFAHREN UND VORRICHTUNG ZUR OPTIMIERUNG DES ABSCHALTVORGANGS EINES NICHTEINRASTENDEN, ABSCHALTBAREN LEISTUNGS-HALBLEITERSCHALTERS
Title (fr)
PROCEDE ET DISPOSITIF POUR OPTIMISER LE PROCESSUS D'INTERRUPTION D'UN SECTIONNEUR DE PUISSANCE A SEMI-CONDUCTEUR BLOCABLE NON VERROUILLANT
Publication
Application
Priority
- DE 9701778 W 19970818
- DE 19634612 A 19960827
Abstract (en)
[origin: DE19634612A1] This invention concerns a process for optimizing the power-down cycle of a non-engaging, interruptable power semiconductor switch (2) in a saturating power converter and a device for carrying out the process. According to the invention, when the interrupt signal (Saus) arrives, the gate emitter voltage (UGE) of this power-semiconductor switch (2) lowered with the help of a maximally permissible discharge current and its collector-emitter voltage (UCE) are monitored against exceeding a reference voltage (UCEref), the value of which is set so that the collector current (IC) begins to commutate, and upon reaching the reference value (UCEref), the discharge current is reduced to a value which is below the value of the maximum permissible discharge current. Thus, the power-down cycle of a non-engaging, interruptable power semiconductor switch (2) is largely optimized, so that the voltage rise and current drop times can be separately controlled.
IPC 1-7
IPC 8 full level
H03K 17/042 (2006.01); H03K 17/16 (2006.01); H03K 17/00 (2006.01)
CPC (source: EP)
H03K 17/04206 (2013.01); H03K 17/166 (2013.01); H03K 17/168 (2013.01); H03K 2217/0036 (2013.01)
Citation (search report)
See references of WO 9809378A1
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL
DOCDB simple family (publication)
DE 19634612 A1 19980312; CN 1234146 A 19991103; EP 0922331 A1 19990616; NO 990962 D0 19990226; NO 990962 L 19990427; WO 9809378 A1 19980305
DOCDB simple family (application)
DE 19634612 A 19960827; CN 97199012 A 19970818; DE 9701778 W 19970818; EP 97918888 A 19970818; NO 990962 A 19990226