Patent ID: 8829862

Claim:
A voltage regulator for an alternator of a motor vehicle, comprising: an electronic regulation circuit ( 10 ) producing an excitation current (Sexc) for an excitation coil (EX) of the alternator (ALT), said excitation current (Sexc) being produced in accordance with a difference between a set voltage (SP) and an output voltage (+Vb) measured at terminals of an electric battery (BAT) of said vehicle, to which said alternator (ALT) is connected electrically, and a programmable signal processing interface ( 11 ) receiving as input a plurality of representative signals (Sp, SGp, Sexc) representative of said excitation current, producing a selected representative signal (SS) representative of said excitation current, producing an excitation return signal (Srex) based on said selected representative signal (SS) and transmitting said excitation return signal (Srex) to an electronic control unit ( 3 ) of said vehicle; said signal processing interface ( 11 ) comprising an input selection circuit ( 110 ) for selection of said selected representative signal (SS) from said plurality of representative signals (Sp, SGp, Sexc), and a signal processing circuit ( 111 ) for applying different forms of processing to said selected representative signal (SS) means said signal processing circuit ( 111 ) including means (MU 130 to MU 133 ) for selection of processing to be applied to said selected representative signal (SS); said input selection circuit ( 110 ) electrically connected to said electronic control unit ( 3 ) of said vehicle through said means (MU 130 to MU 133 ) for selection of processing to be applied to said selected representative signal (SS); said selected representative signal (SS) and said processing to be applied being selected according to a predetermined program provided to said programmable signal processing interface ( 11 ).