Circuit and method for charging at least two serially connected capacitors

There is provided a circuit and method for charging at least two serially connected capacitors. In the circuit, each capacitor has a corresponding rectifying element and a corresponding winding portion. The winding portions are wound on a common core and have the same number of turns. A first end of each winding portion is connected to a first terminal of its corresponding capacitor, and a second end of each winding portion is connected to a second terminal of its corresponding capacitor via the corresponding rectifying element. Thereby, each winding portion is arranged to act as a current source for its corresponding capacitor. The circuit and method of the present invention are advantageous in that they allow serially connected capacitors to be charged and balanced in a simple way.