Title :
Applying a Counter-based PFM Control Strategy to an FPGA-based SR Forward Converter
Author :
Hwu, K.I. ; Yau, Y.T.
Author_Institution :
Dept. of Electr. Eng., Taipei Univ. of Technol.
Abstract :
A field programmable gate arrays (FPGA) technique applied to a forward converter is presented to design a pulse-frequency-modulation (PFM) controller, along with protection peripherals. With only one comparator and without any analogue-to-digital converter (ADC), the information on the feedback output voltage is entirely obtained according to a counter. Besides, the control effort is calculated and used during the present period, thus causing the transient load response to be very fast. In this paper, the operation of this control topology is illustrated, along with some experimental results to demonstrate its effectiveness
Keywords :
comparators (circuits); field programmable gate arrays; power convertors; pulse frequency modulation; transient response; FPGA technique; comparator; control topology; counter-based PFM control strategy; field programmable gate array; pulse-frequency-modulation controller; synchronous rectification forward converter; transient load response; Channel bank filters; Control systems; Counting circuits; Field programmable gate arrays; Output feedback; Pulse width modulation; Strontium; Switches; Switching frequency; Voltage control;
Conference_Titel :
TENCON 2006. 2006 IEEE Region 10 Conference
Conference_Location :
Hong Kong
Print_ISBN :
1-4244-0548-3
Electronic_ISBN :
1-4244-0549-1
DOI :
10.1109/TENCON.2006.344108
