Featuring programmable control via USB interface and microprocessor controlled circuits, Model 1350 provides 2 variable supplies of 0–32 V, 0–3 A and one fixed supply of 5 V, 3 A. Voltage and current are controlled by 12-bit D/A converter with resolutions as high as 10 mV and 1 mA, respectively. Digitized system enables user to input all data via computer keyboard. Protections against over voltage and current are completely regulated by software.