AmberSemi is a semiconductor company that provides power management and sensing solutions. It offers the AC Direct DC Enabler off-line AC and DC power conversion system that extracts DC power directly from AC mains, the AC Direct Sensing technology for gathering data on the state of AC power, and the AC Switch Controller tool for driver control over conventional bi-directional metal-oxide-semiconductor field-effect transistor (MOSFETs). The company caters to the residential, commercial, industrial, and electronics industries.