All Digital DC/DC Converters on FPGA

Author

Wang, Qian ; Zhang, Dong-Lai

Author_Institution

Shenzhen Grad. Sch., Harbin Inst. of Technol., Shenzhen

Volume

2

fYear

2008

fDate

20-22 Oct. 2008

Firstpage

11

Lastpage

15

Abstract

The FPGA can realize a more optimized digital controller in DC/DC converters when compare to DSPs. Based on the FPGA platform, The theoretical analysis, characteristics, simulation and design consideration are given. The methods to implement the digital DC/DC converters have been researched. The function module, state machine of digital DC/DC controller and high resolution DPWM with sigma-delta dither has been introduced. They are verified by experiments on a 20 W, 300 KHz non-isolated synchronous buck converters, the performance can fullfil the requirements totally.

Keywords

DC-DC power convertors; field programmable gate arrays; pulse width modulation; sigma-delta modulation; FPGA; digital DC-DC converter; digital controller; discontinuous pulse width modulation; frequency 300 kHz; function module; high resolution DPWM; power 20 W; sigma-delta dither; state machine; Circuits; Communication system control; Control systems; DC-DC power converters; Digital control; Error correction; Field programmable gate arrays; Frequency; Switches; Voltage control; FPGA; digital controller; dither; sigma-delta DPWM;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Computation Technology and Automation (ICICTA), 2008 International Conference on

Conference_Location

Hunan

Print_ISBN

978-0-7695-3357-5

Type

conf

DOI

10.1109/ICICTA.2008.391

Filename

4659712