High Voltage DC/DC Converters - American Power Design, Inc. American Power Design, High Voltage Power Supply, High Voltage DC/DC, High Voltage, Power Supplies, hv power, hv power supply, hv power supplies, regulated dc power supply, regulated dc power supplies, dc power supply, dc power supplies, regulated power supply, regulated power supplies, electron beam, glow discharge, Ion Beam, Low Ripple, high voltage designer American Power Design is a leading supplier of high voltage DC to DC converters. Our product offering is from 0.5 to 200 watts with outputs to 8000Vdc. Our converters are utilized in a very broad range of applications from hundreds of feet below the ocean's surface to orbiting miles above the earth.