Comparison of load resistor and battery on controlling buck boost converter using fuzzy-pi methodMaryanto Massarang, Jumiyatun Jumiyatun, Yulius Salu Pirade, Mahwada Mahwada and Andi FatmwatiMATEC Web Conf., 331 (2020) 06004DOI: https://doi.org/10.1051/matecconf/202033106004