The following publications are possibly variants of this publication:
- A Reliable Single-Phase Bipolar Buck-Boost Direct PWM AC-AC Converter With Continuous Input/Output CurrentsHafiz Furqan Ahmed, Mohamed Shawky El Moursi, Honnyong Cha, Khalifa Al-Hosani, Bashar Zahawi. tie, 67(12):10253-10265, 2020. [doi]
- An Improved Single-Phase Direct PWM Inverting Buck-Boost AC-AC ConverterAshraf Ali Khan, Honnyong Cha, Hafiz Furqan Ahmed. tie, 63(9):5384-5393, 2016. [doi]