Powerbox has announced a range of high-voltage input DC/DC converters for microgrid, datacenter, and industrial applications. Part of its industrial line, the new series of HVDC/DC converters operate with an input voltage range of 180 VDC to 425 VDC and deliver output power levels from 150 W to 750 W.
The range of applications powered by high-voltage DC supplies is rapidly expending. All of these applications require ready to use, board-mounted power converters. Powerbox’s PQB-PHB-PFB300S Series converters are specifically designed for such applications. They are built around a high-efficiency topology, have a layout optimized for thermal conduction, feature an input/output isolation of 3,000 VAC minimum, and deliver output voltages from 3.3 VDC to 48 VDC.Energy network managers and systems architects developing electronic equipment connected to microgrids are concerned about energy efficiency and utilizing direct conversion from a 350-VDC bus. In many cases the voltage conversion is achieved using single stage, modular HVDC/DC converters stepping down the bus voltage to the load. The same is now happening in the latest generation of datacenters, increasing energy utilization by the reduction of power losses by migrating from AC distribution to HVDC. High-voltage DC distribution is also common in industrial electrical vehicles such as tho
se used in the mining and tunnel industries. These applications require fully encapsulated power modules able to operate within a wide temperature range, and down to -40°C. Such applications are what the PQB-PHB-PFB300S HVDC/DC converters are designed for.
As required for HVDC bus voltage applications, all products have an input to output isolation of 3,000 VAC minimum. The input to case isolation is 2,500 VAC and output to case is 500 VAC. The isolation resistance is 107 Ω minimum. The PQB-PHB-PFB300S Series meet the requirements of UL60950-1, EN60950-1, and IEC60950-1 standards and CE mark 2014/30/EU.
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