Title :
All Digital DC/DC Converters on FPGA
Author :
Wang, Qian ; Zhang, Dong-Lai
Author_Institution :
Shenzhen Grad. Sch., Harbin Inst. of Technol., Shenzhen
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;
Conference_Titel :
Intelligent Computation Technology and Automation (ICICTA), 2008 International Conference on
Conference_Location :
Hunan
Print_ISBN :
978-0-7695-3357-5
DOI :
10.1109/ICICTA.2008.391
