The N7900 Series dynamic DC power supplies are designed for automated test equipment (ATE) applications where high-speed dynamic sourcing and measurement is needed. Turn any APS power supply into not only a source but a load as well, which is great for power storage applications. Add full, 2-quadrant operation to any APS power supply with the N7909A APS power dissipater unit. Features Test speeds 100x faster than standard system power supplies Command processing speed < 2ms Fast up/down programming speeds up to 500 µs Adjustable measurement rate to balance speed and accuracy Dual voltage and current measurement capability with DMM-like accuracy Power, peak power, watt hour, and amp hour measurements Provides continuous smooth operation between +current and - current transitions Provides + and - programmable current limits, programmable + and - current waveforms, and automatic downprogramming Full two-quadrant operation requires N7909A power dissipater units, standalone power supply offers 10% rated current two-quadrant operation Ensures equal current sharing among paralleled supplies Implemented with three wire connection on power supply rear panel Ensures each paralleled supply operates in its intended mode, whether that is CV or CC