单片机闭环控制BOOST变换器

齐展鹏：单片机闭环控制BOOST变换器AbstractIt is well known that the boost chopper circuit is the basic chopper circuit and the design ofthe adjustable DC power supply can be realized by the boost chopper circuit..The purpose of this design is to design a high performance BOOST chopper converter.TImicrocontroller MSP430 as the main control device,complete the voltage feedback regulator andgenerate PWM wave,realize the reference voltage set and voltage current display.MSP430 hasthe high accuracy of the A/D conversion module,and its low power consumption is conducive toimprove the efficiency of the system.Design requirements,the load current is below la,inputfor 5V DC voltage,the output of 5V to 15V and voltage regulation of the maximum error withinthe adjustable DC regulated power supply,the maximum output power of 7.5W.This paperpresents a design scheme of the system for switching power supply..Keywords:switching power supply;BOOST transform topology;MSP430 MCU;detectioncircuit;limiting voltage protection