Patent ID: 6677733
Filing Date: 2004-01-13
Classification: H02M

Abstract:
A DC/DC converter (1), comprising inductive electrical energy storage means (L), switching means (S1, S2) and control means (6), wherein said control means (6) are arranged for selectively operating said switching means (S1, S2) for transferring an amount of electrical energy from said energy storage means (L) to an output of said DC/DC converter (1), for providing a desired output voltage (Vout), characterized in that said control means (6) are configured for operatively controlling said switching means (S1, S2) for transferring electrical energy in accordance with a two-state switching cycle comprising a minimum and a maximum duty cycle (Dmin, Dmax) in response to a comparison between said output voltage (Vout) and a set reference voltage (Vref), wherein said switching means (S1, S2) are controlled such that if said output voltage (Vout) is below said set reference voltage (Vref), the maximum duty cycle (Dmax) is used for the next switching cycle, and if said output voltage (Vout) is higher than said set reference voltage (Vref) the minimum duty cycle (Dmin) is used for the next switching cycle.