Freescale Semiconductor,inc.

Philippe Meunier

Philippe Lance

Bernard Pechaud

A regulator system for modulating a field current of an alternator device, comprises logic arranged to receive or generate a reference signal comparison logic arranged to compare a received alternator output indication to the reference signal; and generate a field current modulation signal at least partially based on the comparison of the received alternator output indication and the reference signal. The regulator system further comprises logic arranged to receive at least one temperature indication. The regulator system comprises thermal compensation logic arranged to determine whether an indicated temperature exceeds at least a first threshold, and upon determining that the indicated temperature exceeds at least the first threshold, to apply compensation to the reference signal, the amount by which the reference signal is compensated is at least partly dependant on the amount by which the indicated temperature exceeds the first threshold.

Method and apparatus for regulating a field current for an alternator device

An apparatus for an integrated circuit comprising a thermal sensor ( ), an A-D converter ( ) coupled to the thermal sensor, wherein the thermal sensor provides an input to the A-D converter, and the A-D converter converts the input to a digital value representative of the thermal environment of the thermal sensor. The integrated circuit collects a data value at a location on an integrated circuit wherein the data value has a predetermined functional relationship to the temperature at the location. The integrated circuit converts the data value to a value representative of the thermal environment of the location on the integrated circuit.

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Cugneaux, France

Philippe Meunier