Patent ID: 9095022
Filing Date: 2015-07-28
Classification: H02M,H05B

Abstract:
1. A buck converter operable to provide a predetermined average current to a load, said buck converter comprising: a converter positive input, a first load terminal and a second load terminal; a primary inductor connected between the converter positive input and the first load terminal; a primary inductor current sensing circuit effective to sense current through the primary inductor and provide a primary inductor current signal indicative of the current through the primary inductor; a switch connected between the second load terminal and a ground input of the converter; a switch current sensing circuit effective to sense an instantaneous current through the switch and provide an instantaneous current signal indicative of the sensed instantaneous current through the switch; and a controller operable to receive the primary inductor current signal and the instantaneous current signal and control the switch as a function of the primary inductor current signal and the instantaneous current signal, wherein: