A current compensation circuit for VRM in the sudden change of the load

A new current-compensation circuit system for VRM is proposed. The proposed circuit consists of MOSFETs, resistors and capacitors without any discrete magnetic devices. It works during only term of transient response and total power loss is very small. From the simulation result, it is revealed that the output voltage of the VRM has fitted in 5 % of 1.5 V at the load change between 1 A and 50 A. And from the observation result, it is revealed that the descent width of output voltage of VRM has improved about 100 mV of 1.5 V at the load change from 1 A to 10 A.