Stefan Völkel

Antriebssystem für ein batteriebetriebenes Fahrzeug

Method for protecting an intermediate circuit capacitor in a power converter circuit

MODULAR HIGH-FREQUENCY CONVERTER AND METHOD FOR OPERATING THE SAME

Modular Multilevel DC/AC converter comprising a series connection of DC/AC inverter sub-modules with a central discharge apparatus

Method and device for variable setting an IGBT switching characteristic

Modular high frequency converter

Method for operating load-side static inverter of voltage intermediate circuit converter, involves disconnecting load-side static inverter as soon as value of its input voltage is equal to pre-determined value of safety threshold voltage

Power electronic circuit and power supply device

Method of operating modular high frequency converter mounted in e.g. electric vehicle, involves replacing switching position model parameters that represent influence of switch positions of input-side half-bridge by related duty cycle

METHOD FOR ESTIMATING A TORQUE OF A THREE-PHASE DRIVE MOTOR FOR A VEHICLE