Advanced Energy/Ultravolt HVA DC-DC High Voltage Power Supplies are designed to deliver 1000VDC to 20,000VDC of maximum high voltage power in positive, negative, or bipolar configurations. These power supplies source and sink current at bandwidths up to 500Hz through the operating range. The HVA DC-DC power supplies include full-range two- and four-quadrant output of voltage and current for bias, amplification, or reversing. These power supplies improve high voltage output performance by reducing control signal noise and drift. The HVA DC-DC power supplies are optimized for bias applications while achieving superior load regulation, dynamic response, and line regulation. These power supplies are ideal for electrohydrodynamics, pockels cells, electron microscopes, and electrospinning applications.