Gm Global Technolgoy Operations, Inc.

Benjamin S Ngu

Brian A Welchko

Yilun Luo

Khorshed Mohammed Alam

Chandra S Namuduri

Rashmi Prasad

Michael Z Pieszala

Sanjeev Manubhai Naik

Mohammad N Anwar

Luciano Nunziato Di Perna

Marko Jaksic

Hong Wai Nguyen

Eric Bernard Gach

Ioan Suciu

A variable slew rate gate drive system for powering an electric machine. The system may include a gate driver operable for controlling each of a plurality of hybrid switch power modules between opened and closed states to facilitate powering the electric machine. The gate driver may be operable for selecting slew rates and controlling ON and OFF states of first and second semiconductor switches included as part of each power module to optimize powering of the electric machine by varying the slew rates as a function of performance characteristics of the first and second semiconductor switches.

Variable slew rate gate driver for hybrid switch power module

A system and method for receiving, at a multi-chip power module, multiple electronic control signals by one or more semiconductor devices of a first device type configured in parallel to one or more semiconductor devices of a second device type. The one or more semiconductor devices of the first device type and the one or more semiconductor devices of the second device type form a plurality of functional switches. The functional switches independently change states, in response to the plurality of electronic control signals. The one or more semiconductor devices of the first device type are configured to be electrically controlled for use independently and de-coupled, or in parallel, with the one or more semiconductor devices of the second device type.

Hybrid switch multi-chip power module for a vehicle battery

A variable current gate driver for a transistor includes a first current control device having a first controllable output current. The first current control device is electrically connected between a first bus and an activator of the transistor, and a second current control device having a second controllable output current. The second current control device is electrically connected between the activator of the transistor and a second bus. A controller is operatively connected to the first and second current control devices to control the first and second controllable output currents to control the first and second current control devices to control activation of the transistor via the activator. The controller is operative to control the first and second current control devices to control a slew rate of the transistor.

Variable current gate driver and system

A novel power inverter system for transferring electric power between a DC power source and a multi-phase electric machine is described, and includes a power inverter, a Z-source inverter, a first switch, and a second switch. The first switch is arranged between positive and negative conductors of a high-voltage bus that is electrically coupled to the DC power source, and the second switch is arranged in-line on the positive conductor of the high-voltage bus.

Inverter circuit for an electric machine

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Troy, MI, United States of America

Benjamin S Ngu