US Patent 10985653 Charge pump converter and control method

An apparatus includes a first switching device and a second switching device connected in series between a first node and a second node, a first voltage blocking device and a second voltage blocking device connected in series between the first node and a third node, a flying capacitor connected between a common node of the first switching device and the second switching device, and a common node of the first voltage blocking device and the second voltage blocking device, and a controller configured to adjust power losses in the first switching device and the second switching device through controlling charge and discharge processes of the flying capacitor.