Inverse-feedforward and robust-feedback control for high-speed operation on piezo-stages. - Po-Jen Ko; Yen-Po Wang; Szuchi Tien (Int. J. Control, 2013)

Voltage-current-based state and disturbance estimation for power-assisted control applied to an electric wheelchair. - Po-Wen Hsueh; Mi-Ching Tsai; Cheng-Ying Lin; Po-Jen Ko; Wu-Sung Yao (CASE, 2014)

$ text{H}_{ infty}$ Control Design of PID-Like Controller for Speed Drive Systems. - Po-Jen Ko; Mi-Ching Tsai (IEEE Access, 2018)