Title :
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
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;
Conference_Titel :
Power Electronics Specialists Conference, 1998. PESC 98 Record. 29th Annual IEEE
Conference_Location :
Fukuoka
Print_ISBN :
0-7803-4489-8
DOI :
10.1109/PESC.1998.701973
