## Application

1. Envelop Tracking (包络跟踪) and point-of-load applications, because these require small form factor fast-transient converter.
2. To balance the inductor current in 2P, 2P3L, 4P3L struture, in which P means phase, L means inductor.

The proposed structure is shown below, however, the only change is the way of capacitor-connection.
Waveform $D_1, D_{S1}, D_2, D_{S2}$ control power switches $S_{11}\&S_{24}, S_{12}\&S_{13}, S_{21}\&S_{14}, S_{22}\&S_{23}$. So the voltage of $V_{X1}$ veries $V_{in}→V_{CF1}→V_{in}→V_{in}−V_{CF2}$ and $V_{X2}$ veries $V_{in}→V_{CF2}→V_{in}→V_{in}−V_{CF1}$.