The origin of this simple rule of thumb relating the rise time of a signal and the highest sine wave frequency we need to consider in the signal is based on a very simple type of signal. We assume the ...

y(i) = A * Sin((a * i 2)/2 + b * i))where y(i) is the amplitude of the swept sine wave as a function of sample point, i is the integer that steps through the time series, and A is the signal’s peak ...

Toshiba’s Hall sensorless sine-wave drive three-phase brushless DC motor control pre-driver IC helps reduce vibration and noise of high-speed motors.