Title :
Digital Controlled High Frequency Switching Mode Power System
Author :
Yu, Jian ; An, Yong-quan
Author_Institution :
Sch. of Electron. & Comput. Sci. & Technol., North Univ. of China, Taiyuan, China
Abstract :
Design of a dc-dc converter operating at the frequency of MHz is presented. Digital control algorithm is implemented in FPGA and a high resolution PWM pulse generator is built based on the combination of fast clock counter and programmable delay line techniques. The output voltage of this converter is regulated using a phase-shifted PWM scheme. Planar topology for the transformer was adopted and the windings were fabricated by using the printed circuit board. The ability to control the electromagnetic interference of the SMPS was tested and proved to work well.
Keywords :
DC-DC power convertors; PWM power convertors; digital control; electromagnetic interference; field programmable gate arrays; power system control; power transformers; printed circuits; pulse generators; switched mode power supplies; transformer windings; FPGA; PWM pulse generator; clock counter; dc-dc converter; digital control; electromagnetic interference; high frequency switching mode; phase-shifted PWM scheme; planar topology; power system; printed circuit board; programmable delay line; switching mode power supplies; transformer; windings; digital PWM; planar transformer; switching mode power supply; zero voltage switching;
Conference_Titel :
Power Electronics and Design (APED), 2010 Asia-Pacific Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-7079-2
Electronic_ISBN :
978-1-4244-7080-8
DOI :
10.1109/APPED.2010.33
