Patent ID: 8111050

Claim:
A boost converter, comprising: an inductance configured to (i) convert a rectified alternating current to a direct current, and (ii) output the direct current to a load; a switch configured to bypass at least a portion of the direct current from being received by the load; and a control module configured to (i) operate in a plurality of modes, (ii) generate a control signal, and (iii) set a frequency of the control signal based on a selected one of the plurality of modes, wherein the switch is configured to (i) receive the control signal, and (ii) alternate between an ON state and an OFF state based on frequency of the control signal, wherein the control module is configured to minimize time a current level of the inductance is equal to a predetermined level by changing the frequency of the control signal (i) when the current level is greater than the predetermined level and (ii) during an off period of the switch, and wherein the control module is configured to calculate the off period to (i) begin at a peak of the current level of the inductance and (ii) send when the current level decreases to the predetermined level.