A Two-Phase Three-Level Buck DC–DC Converter With X-Connected Flying Capacitors for Current Balancing
A Two-Phase Three-Level Buck Converter With Cross-Connected Flying Capacitors for Inductor Current Balancing
- Envelop Tracking (包络跟踪) and point-of-load applications, because these require small form factor fast-transient converter.
- To balance the inductor current in 2P, 2P3L, 4P3L struture, in which P means phase, L means inductor.
- Hard to minimize the mismatches between the two branches.
The proposed structure is shown below, however,
the only change is the way of capacitor-connection.
Waveform control power switches . So the voltage of veries and veries .