The following products are rack-mountable, high-power, high-performance AC power source, AC voltage, and frequency converters. These AC power sources have achieved downsizing and high efficiency with our original switching amplifier. We have models that enable both AC and DC output and three-phase output. Matsusada precision's AC power source is suitable for various motor tests, power conditioner (Solar inverter) evaluations, production lines, AC/DC power supply, various tests of AC input devices. It can be used as affordable frequency converters.