Gate-Treiber für Stromquelle

Details

Veröffentlichungs-Nr.

EP4734369

Anmeldetag

23. Oktober 2024

Veröffentlichung

29. April 2026

Rechtsraum

EP

IPC

(SCHIMEL PAUL et al.)(OMURA ICHIRO et al.)(NORA PAOLO et al.)(GOSE MARK WENDELL et al.)FAN ZHANG ET AL., IEEE, 2015

Abstract

A switch-mode current source gate driver comprises separate buck converters (22, 24) for turning on and turning off a power semiconductor switch (IGBT). A constant current (I<L1>, I<L2>) of desired level is kept flowing continuously in a series inductor (L1, L2) of the buck converter, regardless of whether the driven power semiconductor switch is in a turn-on stage or a turn-off stage. Each buck converter (22, 24) is provided with an auxiliary switch (Q2, Q4) that can be controlled to either allow the continuous inductor current (I<L1>, I<L2>) of the respective buck converter to flow to the gate (G) of the power semiconductor switch (IGBT) or to "shunt" the inductor current to a power supply (Vcc, Vee).

Anmelder

Firma

ABB Schweiz AG

Land

🇨🇭 Schweiz