The following publications are possibly variants of this publication:
- 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]
- New Approximate 2DOF Digital Controller for DC-DC Converter with Additional ZerosEiji Takegami, Kohji Higuchi, Kazushi Nakano, Satoshi Tomioka, Kazushi Watanabe. IEEEcca 2007: 1085-1090 [doi]
- Current control of a PWM power amplifier by an approximate 2-degree-of-freedom digital controllerKeisuke Fujita, Kohji Higuchi, Kazushi Nakano, Koji Matsushita, Tatsuyoshi Kajikawa, Fumiho Chino. alr, 14(3):433-439, 2009. [doi]