Digital Control Technologies for DC/DC Switching Converters

An overview of recent advances in digital control of low-to medium-power DC/DC switching converters is presented.Traditionally,analog electronics methods have dominated in controlling such DC/DC converters.However,with the steadily decreasing cost of ICs, the feasibility of digitally controlled DC/DC switching converters has increased sig-nificantly.This paper oudines a sample of digital solutions for DC/DC switching converters to enhance the performance of DC/DC switching converters.Furthermore,latest research activities pertaining to applications for steady-state and dy-namic performance improvement,such as efficiency optimization,controller auto tuning,and capacitor charge balance control, is discussed.These applications demonstrate the significant advantages and potentials of digital control.