Comparison of noise characteristics for resonant and PWM flyback converters

Author

Higashi, Toru ; Tsuruta, Hiroshi ; Nakahara, Masatoshi

Author_Institution

Fac. of Educ., Kumamoto Univ., Japan

Volume

1

fYear

1998

fDate

17-22 May 1998

Firstpage

689

Abstract

Noise characteristics in flyback power converters of the current-mode type, voltage-mode type, PWM-type and PWM with RC snubber-type have been quantitatively studied by both experiment and simulation. The mechanisms of noise generation for each type of power converter are revealed using very accurate high-frequency models which include parasitic elements on the circuit operation. Furthermore, the authors compare voltage and current noise at the output stage, rectifying diode and semiconductor switch among those power converters

Keywords

DC-DC power convertors; PWM power convertors; electromagnetic interference; resonant power convertors; snubbers; EM noise characteristics; EMI; PWM flyback power converters; RC snubber; current noise; high-frequency models; noise generation mechanism; output stage; parasitic elements; rectifying diode; resonant power converters; semiconductor switch; voltage noise; Circuit noise; Circuit simulation; Noise generators; Power generation; Pulse width modulation; Pulse width modulation converters; Resonance; Semiconductor device noise; Semiconductor diodes; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1998. PESC 98 Record. 29th Annual IEEE

Conference_Location

Fukuoka

ISSN

0275-9306

Print_ISBN

0-7803-4489-8

Type

conf

DOI

10.1109/PESC.1998.701973

Filename

701973