Self-adaption voltage regulator based on optimized PSM modulation mode

The invention relates to a self-adaption voltage regulator based on an optimized PSM modulation mode, belonging to the technical field of power electronics and being used for self-adaption on-line regulation on a power supply voltage of a load processor (CPU or DSP). In the self-adaption voltage regulator, a key path of the load processor is copied by adopting a delay line, an N frequency division signal of a working clock of the load processor is used as a delay test signal, and a trigger is used for detecting whether the transmission speed of the delay test signal reaches the requirement in the delay line. When the load processor is in a certain working frequency, if the VDD (Voltage Drain Drain) is overhigh, the delay test signal can pass through the delay line, a power switch of an external power inverter is trially shut off for reducing the VDD; and when the delay test signal can not pass through the delay line, optimized PSM modulation signals with different duty ratios are trially adopted for conducting the power switch of the external power inverter for improving the VDD, and finally, the load processor is ensured to work with minimum voltage under a given working clock frequency, thus the power consumption of the load processor is effectively reduced.