Alternator has interface between reference voltage controller and regulator which comprises adjustable clock and circuits to detect difference with incoming command signal then correct clock

摘要

The interface has an internal clock (VCO) and a circuit (L1,L2,CT1,XOR) which produces a difference signal (INVERR) between the period of the incoming command signal (Tpwm) and the internal clock. A driving circuit (CTDC,CNA1) adjusts the internal clock to make the difference zero and a pulse width/voltage converting circuit (L4,L5,CT2,CNA2) produces a corrected reference voltage for the alternator regulator. Independent claims are made for the detailed design of the interface circuits