Shanghai Prisemi Electronics Co., Ltd. engages in the research & development and sale of power semiconductors. Its products include lithium battery charging chip, OVP overvoltage protection chip, load switch, audio power amplifier, DC power chip, protective device, MOSFET products, rectifier devices & small signal devices, IGBT and third generation semiconductor products. The company was founded on November 26, 2009 and is headquartered in Shanghai, China.