Regarding the first energy adjustment module 13, one end of the first inductor L1 may be coupled to the second node N2, and the other end of the first inductor L1 may be coupled to one end of the first capacitor C1 via a six node N6; the other end of the first capacitor C1 may be coupled to a third node N3; the positive electrode of the first diode D1 may be coupled to a fifth node N5, and the negative electrode of the first diode D1 may be coupled to the sixth node N6.

Regarding the second energy adjustment module 14, one end of the second capacitor C2 may be coupled to the third node N3, and the other end of the second capacitor C2 may be coupled to one end of the second inductor L2 via a seventh node N7; the other end of the second inductor L2 may be coupled to a fourth node N4; the positive electrode of the second diode D2 may be coupled to the seventh node N7, and the negative electrode of the second diode D2 may be coupled to a first node N1.

Regarding the second auxiliary switch 12, the second transistor S_a2 may be a field-effect transistor; the drain of the second transistor S_a2 may be coupled to the fourth node N4, and the source of the second transistor S_a2 may be coupled to the fifth node N5.