Patent ID: 8373400

Claim:
A system, comprising: at least one electronic circuit; and a voltage supply unit coupled to an input of the at least one electronic circuit, the voltage supply unit including: a power unit to supply a voltage to the at least one electronic circuit; and a control unit to control an operating mode of the power unit, an output of the control unit coupled to an input of the power unit, the control unit including: a mode selector to select the operating mode of the power unit, coupled to at least a first output of the power unit; an amplifier coupled to the at least a first output of the power unit; a compensation circuit; a signal comparator coupled to the mode selector and the at least a first output of the power unit, to compare the at least a first output of the power unit to a threshold signal; and a first switching unit coupled to the mode selector, the signal comparator and the compensation circuit, to couple the compensation circuit to the amplifier if a selected operating mode of the power unit is a first mode, and a value of the at least a first output of the power unit is not equal to a value of the threshold signal.