Patent ID: 8907639

Claim:
A boost power converter system, comprising: an input voltage high-side node; an inductor coupled to said input voltage high-side node at a first terminal of said inductor; a power switch coupled to said inductor at a second terminal of said inductor; a drive circuit configured to control said power switch such that said boost power converter system operates in a discontinuous conduction mode when a load current drops below a critical conduction threshold; and a damping switch configured to enable current flow from said power switch at said second terminal of said inductor to said input voltage high-side node, wherein said damping switch is closed when said power switch is open and said damping switch is opened when said power switch is closed, and wherein said damping switch is a controllable resistor providing an electrical resistance, in a closed state, in ohms, is equal or greater than ½√(L/Csw), where L is the value of said inductor, in henrys, and Csw is the value of parasitic capacitance at said second terminal of said inductor, in farads.