Patent ID: 7977928

Claim:
A direct current to direct current power converter comprising: an energy storage element; a first switching circuit coupled between a substantially direct current (DC) input source and a first terminal of said energy storage element, wherein said first switching circuit comprises a first electronically controlled switch controlled by a first driving signal with a first duty cycle; a second switching circuit coupled between a second terminal of said energy storage element and a substantially DC output, wherein said second switching circuit comprises a second electronically controlled switch controlled by a second driving signal with a second duty cycle, and wherein the substantially DC output exhibits one of a voltage level and a current level that is controlled at least in part by the first duty cycle and the second duty cycle; and a control circuitry configured to receive a feedback signal indicative of the substantially DC output and to generate the first driving signal and the second driving signal responsive to a difference between the feedback signal and a reference signal, wherein the first duty cycle is responsive to a first function of the difference and the second duty cycle is responsive to a second function of the difference, the first function having an emphasized high frequency portion of the difference in relation to the second function, and wherein the first driving signal and the second driving signal respectively control said first electronically controlled switch and said second electronically controlled switch such that the direct current to direct current power converter operates in a continuous conduction mode wherein said energy storage element continuously conducts non-zero currents.