Electronic Products & Technology

Compact auto-ranging dc supply delivers up to 30KW with energy-recovering dc load

October 26, 2020  Stephen Law

INTEPRO SYSTEMS PSB series of programmable digital power supplies/load are microprocessor controlled bi-directional supplies that feature two devices in one: an auto-ranging dc power supply and an electronic dc load with energy recovery. The bi-directional package replaces individual programmable sources and loads, and the regenerative load returns up to 95% of test energy to the grid. Product enables two-quadrant operation in a single, efficient, and easy-to-use instrument eliminating the need for two topologies. Units are available with outputs of 15KW in a 3U x 19” rack chassis (PSB 9000) and 30KW in 4U (PSB 1000), and they may be connected in parallel for operation up to 2MW. The auto-ranging bidirectional output stage maintains full power over a wide output range while bidirectional operation provides seamless transitions between source and sink modes. 

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