Power factor correction circuit

A circuit arrangement, comprising:

• a first AC input terminal and a second AC input terminal;
• a first switching device coupled between the first AC input terminal and an output terminal;
• a second switching device coupled between the second AC input terminal and the output terminal;
• an inductor coupled between the first switching device and the second switching device;
• a controller coupled to and configured to control the first switching device and the second switching device to
• in a first mode, provide a first current path between the first AC input terminal and the output terminal through the inductor such that a current flows through the inductor in a first direction;
• and
• in a second mode, provide a second current path between the second AC input terminal and the output terminal through the inductor such that the current flows through the inductor in a second direction, the second direction being opposite to the first direction.

A method for controlling a circuit arrangement,

• the circuit arrangement comprising:
• a first AC input node and a second AC input node;
• a first electronic switching device coupled between the first AC input node and an output node;
• a second electronic switching device coupled between the second AC input node and the output node;
• an inductor coupled between the first electronic switching device and the second electronic switching device;
• the method comprising:
• in a first mode, providing a current flow from the first AC input node to the output node via the inductor in a first current flow direction through the inductor;
• and
• in a second mode, providing a current flow from the second AC input node to the output node via the inductor in a second current flow direction through the inductor, the second current flow direction being opposite to the first current flow direction.