Title :
Effect of ripple on frequency response characteristics of boost converter - Analysis in consideration of ESR of output capacitor -
Author :
Sakai, Eiji ; Nakahara, Masatoshi
Author_Institution :
Energy Electron. Lab., Sojo Univ., Kumamoto, Japan
Abstract :
The output voltage of DC-DC converter contains the ripple and it substantially affects the frequency response although the ripple is usually neglected in the control circuit as PWM control. The authors already have clarified that the effect of the ripple is not ignorable for the frequency response and it causes the unusual characteristics. In this paper, we analyze the effect of the ripple in consideration of ESR of the output capacitor of the boost converter. As a result it has been found that the effect of ESR in the stability is different according to the shape of the slope direction of the ramp generator in the PWM circuit.
Keywords :
DC-DC power convertors; paramagnetic resonance; DC-DC converter; ESR; PWM control; boost converter; control circuit; output capacitor; ramp generator; Capacitors; Circuits; DC-DC power converters; Frequency response; Paramagnetic resonance; Pulse width modulation; Pulse width modulation converters; Shape; Switching converters; Voltage control;
Conference_Titel :
Telecommunications Energy Conference, 2009. INTELEC 2009. 31st International
Conference_Location :
Incheon
Print_ISBN :
978-1-4244-2490-0
Electronic_ISBN :
978-1-4244-2491-7
DOI :
10.1109/INTLEC.2009.5351807
