Improvement of the Unloading Transient Response for the PFM-controlled Buck-type Converter

Author

Hwu, K.I. ; Yau, Y.T.

Author_Institution

Dept. of Electr. Eng., Taipei Univ. of Technol.

fYear

2006

fDate

14-17 Nov. 2006

Firstpage

1

Lastpage

4

Abstract

Accelerating the transient load response is proposed herein and applied to a field programmable gate arrays (FPGA)-counter-based forward converter with synchronous rectification (SR). 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 transient load response is improved significantly by using the proposed control strategy, especially from heavy load to light load. In this paper, the operation of such a 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-counter-based forward converter; PFM-controlled buck-type converter; comparator; field programmable gate array; pulse-frequency-modulated control strategy; synchronous rectification; transient load response; Acceleration; Counting circuits; Field programmable analog arrays; Field programmable gate arrays; Lighting control; Output feedback; Strontium; Topology; Transient response; Voltage;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/TENCON.2006.344099

Filename

4142214