A piezoelectric actuator driver circuit for automatic focusing of mobile phone cameras. - Sangduk Yu; Kichang Jang; Sanghyun Cha; Yeonjung Lee; Ohjo Kwon; Kyoungsoo Kwon; Joongho Choi (ISCAS, 2008)

A highly accurate piezoelectric actuator driver IC for auto-focus in camera module of mobile phone. - Chanwoo Park; Sanghyun Cha; Yuenjoong Lee; Ohjo Kwon; Deukhee Park; Kyoungsoo Kwon; Jaeshin Lee (ISCAS, 2010)