Patent ID: 8624429
Filing Date: 2014-01-07
Classification: H02M

Abstract:
1. A switching regulator comprising: a voltage source for providing electrical energy; an inductive element coupled to the voltage source for accumulating the electrical energy, the inductive element having first and second nodes; a main switching element connected between the second node of the inductive element and a reference voltage; a plurality of output switching elements corresponding to a plurality of outputs, each coupled between the second node of the inductive element and a respective output terminal; a freewheel switching element coupled in parallel with the inductive element between the first and second nodes of the inductive element; and a controller for coordinating the plurality of output switching elements and the main switching element so as to switching the inductive element to each of the plurality of output terminals within a switching period for generating a regulated DC voltage at the respective output terminal from the electrical energy, wherein the controller is configured to adjust, based on a respective output load corresponding to each output, duration of a charge and transfer period corresponding to each output independently for each output; and wherein each output has a respective charge and transfer period within the switching period including charging of the inductive element and transfer of energy from the inductive element to the respective output.