Power Factor Correction of Direct Torque Controlled Brushless DC Motor Drive. - Salih Baris Ozturk; Oh Yang; Hamid A. Toliyat (IAS, 2007)

Simple and high-sensitive resistance-to-time converter using current-mode Schmitt triggers. - Won-Sup Chung; Myeong-Kyun Kim; Oh Yang (IEICE Electron. Express, 2012)