Texas Instruments Corporation

Navaneeth Kumar Narayanasamy

Martin Staebler

An electronic circuit for controlling a power switch having a gate input, includes a signal generator configured to generate a gate driver input signal. The gate driver input signal has a first voltage during a first period of time, a second voltage during a second period of time, and toggles between the first voltage and the second voltage during a third period of time. The electronic circuit also includes a gate driver configured to receive the gate driver input signal and to provide a gate driver output signal based on the gate driver input signal. The signal generator is configured to cause the gate driver input signal to toggle during the third period of time such that the gate driver output signal has a third voltage during the second period of time, and an intermediate voltage that is less than the third voltage during the third period of time.

Circuit and system for the reduction of voltage overshoot in power switches

A pulse width modulator circuit with circuitry for providing a first and second pulse width modulation signal with dead time periods between the first and second pulse width modulation signals, an input for receiving a signal representative of a current in a load adapted to be driven in response to the first and second pulse width modulation signals, and circuitry coupled to the input for adjusting the dead time periods in response to the signal representative of a current.

Dead time adjusted pulse width modulator

A motor system with an input for coupling to a motor control signal that, when presented in a predetermined state, indicates a motor receiving power should be disabled from rotating. The system also includes controller circuitry for providing a disabling signal to motor rotation, independent of processor software control signaling and the power, in response to the control signal.

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Sugarland, TX, United States of America

Navaneeth Kumar Narayanasamy