A Real-Time Sinusoidal Voltage-Adjustment Power Supply System Based on Interleaved BUCK Converters With Enhanced Reference-Tracking Capability

In order to satisfy the requirement of high linearity and low distortion for the power supply of piezoelectric actuators, this paper proposed a real-time following power supply system with enhanced reference-tracking capability. The proposed power supply is composed of a pair of interleaved BUCK converters and an analog power amplifier. The operating principles and the dynamic performance of the proposed power supply are analyzed. The simulation results verified that the reference tracking capability of the power supply is enhanced with the upper limit of the frequency of the sinusoidal output voltage extended from 1 kHz to 10 kHz.