Patent ID: 8400123

Claim:
A voltage converter, comprising: input terminals configured to receive an input voltage; output terminals configured to provide an output voltage and an output current having a first range and a second range; at least one first converter stage connected between the input terminals and the output terminals, comprising at least one unipolar transistor coupled to a first inductor, wherein the at least one first converter stage is configured to provide a first output current; at least one second converter stage connected between the input terminals and the output terminals, comprising at least one bipolar transistor coupled to a second inductor, wherein the at least one second converter stage is configured to provide a second output current, wherein the output current is a sum of the first output current and the second output current; and a control circuit configured to control the first output current and the second output current such that the first output current is higher than the second output current in the first range of output current.