Patent ID: 9270171
Filing Date: 2016-02-23
CPC Classification: H02M

Claim Text:
1. A circuit, comprising: a DC-DC converter comprising: a boost converter to provide a DC voltage output from a DC input voltage, the DC output voltage configured to connect with a first load terminal; a feedback module configured to connect with a second load terminal; a switching module having a switching element coupled to the boost converter; and a control circuit coupled to the feedback module and to the switching module to generate a control signal to control operation of the switching element for a single mode of operation of the switching element, wherein the control circuit includes a slope generator to generate a ramp signal having a slope that varies cycle to cycle, wherein the ramp signal is initiated by a non-periodic clock signal that varies cycle-to-cycle, such that the control signal for the switching element corresponds to the ramp signal, wherein the switching element has a duty cycle that varies cycle to cycle and a duty cycle on-time that varies cycle to cycle.