VCC control method and device for multi-phase interleaving Buck converter

The invention belongs to the technical field of power electronics, and particularly relates to a VCC control method and device of a multi-phase interleaving Buck converter. On the basis of voltage ripple and inductive current ripple information, ripple-based current sharing control is achieved, compared with a traditional peak current control method, the control device obtains a self-adaptive adjustment peak modulation wave signal according to load current calculation, n-phase current sharing can be effectively achieved, the peak modulation wave signal is adjusted in real time when a load jumps, and the control accuracy is improved. The current sharing adjustment time after the jump load can be effectively reduced, and the steady state can be quickly achieved. Compared with a traditional peak current control method, the method has the advantages that a carrier signal contains input voltage and inductive current information at the same time, a control loop is simple, a lead or lag link is not needed, and there