A novel improved PSM mode in DC-DC converter based on energy balance

Author

Ping Luo ; Zhaoji Li ; Bo Zhang

Author_Institution

Sch. of Microelectron. & Solid-State Electron., Univ. of Electron. Sci. & Technol. of China, Chengdu

fYear

2006

fDate

18-22 June 2006

Firstpage

1

Lastpage

4

Abstract

A novel improved PSM mode in DC-DC converter is proposed in this paper. Based on energy balance, besides the large duty ratio, which is utilized in the simple PSM mode, a small duty ratio is adopted, which can make the output voltage small and utilization of energy high. Moreover, a smallest duty ratio is used to ensure the actual frequency of the switching device escaping from the audible range in theory. The operation principle, the design of the control circuit, the simulations and the experiment results focused on a boost converter are given. Deep analyses indicate that the improved PSM converter has good stability, high utilization of energy, high response speed, low ripple of the output voltage and good anti-interference characteristics

Keywords

DC-DC power convertors; pulse modulation; DC-DC converter; antiinterference characteristics; boost converter; control circuit design; energy balance; small duty ratio; Circuits; DC-DC power converters; IEEE members; Optical filters; Optical modulation; Pulse width modulation; Pulse width modulation converters; Regulators; Switching converters; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2006. PESC '06. 37th IEEE

Conference_Location

Jeju

ISSN

0275-9306

Print_ISBN

0-7803-9716-9

Type

conf

DOI

10.1109/PESC.2006.1711767

Filename

1711767