Effects of Battery Type on PWM and Hysteresis Current Mode Boost Converters

摘要

Cell discharge models are used to simulate NiCd, NiMH, Alkaline, and lead-acid cell types with voltage-mode pulse width modulation (PWM) and hysteresis-current-mode (HCM) boost converters operating in continuous conduction mode. The objective is to investigate effects of different cell types on boost converter performance. Effects on converter efficiency are studied from the controller's perspective.rnResults indicate that, in the case of the PWM controller, converter efficiency decreases with the converter's input voltage. The HCM controller results show that efficiency increases as battery voltage decreases. Despite this difference in behavior, however, efficiency for the PWM was higher than for the HCM throughout the input voltage range studied. Results also suggest that some differences in efficiency over time exist between the battery chemistries studied.