A converter can include at least two power stages. Each power stage can include a power factor control circuit. An active shared control circuit for a three power stage system receives at least three sense signals. Each of the sense signals is associated with a parameter of the respective one of the power stages. The control circuit provides at least three control signals. Each of the control signals being associated with the respective power factor control circuit of the power stages. The active share control circuit balances the current supplied by the power stages via the control signals.