The PCR-M Series is a small-size AC power supply with the ease of a variable auto transformer or an automatic voltage regulator (AVR) and the usefulness of a multifunctional AC power supply. As the PWM inverter method is adopted for the power unit, the PCR-M Series is much smaller and lighter than the predecessors while enabling high-quality and highly-efficient (about 70 percent) operation.
You can access AC+DC mode if you have installed an optional interface board of IB21, US21 or EX04-PCR-M. The communications interface is used to set that mode.
