Patent ID: 9537395
Date: 2017-01-03
CPC Classifications: H02M,H03K,Y02B

Claim:
1. An electronic device comprising: an internal node; a switched power supply module comprising a plurality of switched power supply circuits configured to generate an output supply signal on the internal node, wherein each of the plurality of switched power supply circuits comprises: a peak efficiency detection module configured to receive the output supply signal and, based thereupon, generate an efficiency signal representative of an efficiency of the switched power supply module; wherein the efficiency signal being lower than a threshold value indicates that switching losses of the switched power supply module are greater than ohmic losses thereof, and wherein the efficiency signal being higher than the threshold value indicates that the ohmic losses of the switched power supply module are greater than the switching losses thereof; the switched power supply module configured to switch at least one of the plurality of switched power supply circuits between an activated state and a deactivated state based upon the efficiency signal by biasing control terminals of the PMOS transistor and NMOS transistor of each switched power supply circuit.