A High-precision Current Sense Circuit with Trimming for DC-DC Converts Ning Duan, Shulin Liu, Xiangdong Zhu, Jinjun Pei and Haipeng Zhu MATEC Web Conf., 232 (2018) 04057 Published online: 19 November 2018 DOI: 10.1051/matecconf/201823204057