CIRCUIT AND METHOD FOR SYNCHRONIZING A FUEL PUMP OR THE LIKE

摘要

A sensor senses a reference signal having a reference pulse characterizing angular position of a rotating member and an angular clock pulse characterizing the rotational speed of the rotating member and having an angular clock pulse frequency greater than the reference pulse frequency. An output signal is produced having an output pulse delayed with respect to the reference pulse of the reference signal by an integral number of angular clock pulses to provide a coarse adjustment The output signal may be delayed by an additional fraction of a subsequent angular clock pulse to provide a fine adjustment. A circuit to effect this method is also disclosed.