Patent ID: 9252694
Filing Date: 2016-02-02
CPC Classification: H02P

Claim Text:
1. A detection circuit for an alternator regulator, the detection circuit comprising: an input circuit arranged to receive a phase signal from the alternator regulator and to output an attenuated sense signal representative of the received phase signal; a detection component operably coupled to the input circuit and arranged to receive the attenuated sense signal output by the input circuit; and a blocking capacitance operably coupled between the input circuit and the detection component and arranged to block a DC component of the attenuated sense signal, wherein the detection component is arranged to compare the received attenuated sense signal to at least one reference voltage signal, and to output a signal representative of a frequency of the phase signal from the alternator regulator based at least partly on the comparison of the received attenuated sense signal to the at least one reference voltage signal.