Patent ID: 8916764

Claim:
A method, comprising: dynamically maintaining a ripple voltage (V RIPPLE ) average amplitude of a switch mode DC-DC buck converter output voltage (V OUT ), said converter configured to be disposed between a power source and a load, said converter comprising a switch and an output filter, by: receiving, at a control module of the converter, a value for V OUT and for input voltage (V IN ) to the converter; and varying, with the control module, a switching period (T PERIOD ) of the switch so as to maintain V RIPPLE at a substantially constant value over a first range of converter input voltages and a second range of switch duty cycles by varying T PERIOD with respect to V OUT and V IN so as to approximately satisfy the following relationship: T PERIOD =((V RIPPLE *8*L*C)/(V OUT −V OUT 2 /V IN )) 0.5 .