Sony Group Corporation
POWER SUPPLY APPARATUS

Abstract:

There are provided a first arm circuit and a second arm circuit (1020, 1021) each including an upper arm and a lower arm; a series resonant circuit including a first inductor (Lr1) and a capacitor (Cr1), the first inductor having one end thereof connected with a first end of primary winding of a transformer (Tr), the capacitor being connected with the other end of the first inductor; a second inductor (Lr2) having one end thereof connected with a connection point connecting the upper arm with the lower arm in the second arm circuit; and a control circuit (10) controlling drive of the first and the second arm circuits. A connection point connecting the upper arm with the lower arm in the first arm circuit is connected with a second end of the primary winding of the transformer. A connection point connecting the first inductor with the capacitor is connected with the other end of the second inductor.