Patent ID: 6985018

Claim:
A multi-turn pulse width modulation (PWM) generator for generating a PWM output corresponding to multiple 360 degree turns, comprising: a counter for receiving a reference signal, and for counting a number of cycles of the reference signal to generate a binary output corresponding to the number of cycles counted; a frequency divider for receiving a sensor output signal, and for dividing a frequency of the sensor output signal by the number of turns in the multiple turns to generate a frequency divided signal, wherein the sensor output signal has substantially the same frequency as the reference signal, but can be offset in phase from the reference signal; a demultiplexer for receiving the binary output, and for generating a plurality of turn indicator signals, each corresponding to one of the multiple turns; a multiplexer for receiving the turn indicator signals and a mechanical turn indicator signal, and for selecting one of the turn indicator signals that corresponds to the mechanical turn indicator signal; and at least one flip flop for receiving the selected one of the turn indicator signals and the frequency divided signal, and for generating the PWM output using the selected one of the turn indicator signals and the frequency divided signal.