Patent ID: 8779731
Filing Date: 2014-07-15
Classification: H02M

Abstract:
1. A switching power converter to efficiently convert power from a power source comprising: a first power device coupled between a negative terminal of said power source and a switching node; an inductor coupled between a positive terminal of said power source and said switching node; a diode coupled between said switching node and an output terminal of said switching power converter; a switch MOSFET device comprising a drain terminal coupled to said switching node, a source terminal directly coupled to a resistor and to a feedback network, a capacitor coupled between said output terminal of said switching power converter and said negative terminal of said power source; a load coupled between said output terminal of said switching power converter and said negative terminal of said power source; a comparator providing hysteretic control of said switching power converter in response to said synthetic ripple signal and to a reference signal, and a control logic circuit and a pre-driver circuit for generating signals to drive said first power device in response to an output signal of said comparator, and to operate said switching power converter at a switching frequency.