The following publications are possibly variants of this publication:
- Robust control of PWM power amplifier by approximate 2-degree-of-freedom digital controller with mode switchingKohji Higuchi, Kazushi Nakano, Kuniya Araki, Fumiho Chino. IEEEisic 2002: 367-372 [doi]
- Robust digital control of PWM power amplifier by approximate 2-degree-of-freedom system with bumpless mode switchingKohji Higuchi, Kazushi Nakano, Tatsuyoshi Kajikawa, Kuniya Araki, Fumiho Chino. cdc 2003: 6248-6253 [doi]
- Broadband robust PWM power amplifier using approximate 2DOF digital controlTakahiro Nomura, Hiroshi Iwata, Kohji Higuchi, Kazushi Nakano. alr, 15(1):83-88, 2010. [doi]
- Design of Approximate 2-Degree-of-Freedom Digital Controller for a Boost DC-DC ConverterYoshihiro Ohta, Kohji Higuchi. ieicet, 95-C(11):1810-1816, 2012. [doi]
- Approximate 2-Degree-of-Freedom digital control for a boost DC-DC converterYoshihiro Ohta, Kohji Higuchi. ieiceee, 9(6):496-501, 2012. [doi]
- Approximate 2-degree-of-freedom digital control for a PFC boost converterYoshihiro Ohta, Kohji Higuchi. ieiceee, 10(10):20130152, 2013. [doi]