Power transistor control device

Miscellaneous active electrical nonlinear devices – circuits – and – Gating – Utilizing three or more electrode solid-state device

Reexamination Certificate

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Details

C327S108000

Reexamination Certificate

active

07368972

ABSTRACT:
The invention relates to a gate control device10of a power semiconductor component11of the IGBT type. A ramp generator circuit20delivers a reference gate voltage at its output. A stage for the current amplification of the said reference voltage delivers a gate current to the IGBT component, this amplification stage comprising an ignition circuit30and a rapid extinction circuit40.A slow extinction circuit50is connected between the gate G of the IGBT component and the output of the generator circuit. A circuit60for the detection of a collector-emitter voltage of the component is connected to a feedback circuit70delivering a feedback signal71that acts on the rapid extinction circuit40and on the output22of the generator circuit.

REFERENCES:
patent: 6285235 (2001-09-01), Ichikawa et al.
patent: 6556062 (2003-04-01), Wallace
patent: 7038500 (2006-05-01), do Nascimento
patent: 2002/0131276 (2002-09-01), Katoh et al.
patent: 0 913 919 (1999-05-01), None
H.G. Eckel, L. Sock, “Optimization of the Turn-Off Performance of IGBT at Overcurrent and Short-Circuit Current,” Institute for Electrical Drives, University of Erlangen, Germany, 1993, pp. 317-322.
Eckel et al. “Optimization of the Turn-Off Performance of IGBT at Overcurrent and Short-Circuit Current.” 1993. Institute for Electrical Drives, University of Erlangen, Germany. p. 319-320.
H.-G. Eckel, et al. “Optimization of the Turn-Off Performance of IGBT At Overcurrent and Short-Circuit Current”, The European Power Electronics Association, 1993, pp. 317-322, XP006511564.

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