1300W quarter brick DC-DC advanced bus converter can be used as upgrade

July 11, 2018 // By Nick Flaherty
Flex Power Modules has launched a 1300W version of its BMR480 DC-DC advanced bus converter series that can be used as a more efficient upgrade for its 1000W module in data centres and telecoms applications.

The BMR48001x6/005 delivers 12V DC at up to 1300W of power and 108.3A . 

Packaged in the industry-standard quarter-brick-format measuring 58.4 x 36.8 x 14.48mm (2.30 x 1.45 x 0.57 in), the module has a power density of more than 680W/in 3. This comes from optimizing its operation across the input voltage range of 45V to 60V to produce a regulated 12V output, using the company’s patented Hybrid Regulated Ratio (HRR) technology between 51V and 45V. Over 15 patents have been filed in relation to the BMR480 series, which  was aquired from Ericsson, many of which are directly related to efficiency improvements and design techniques for lowering power dissipation. This gives an efficiency of 97.4 percent when operating from a 53V input voltage and delivering 100% output current. 

Compared with other members of the BMR480 series, the BMR48001x6/005 delivers around 0.5% higher efficiency at 1000W, making it a viable upgrade for existing installations, as well as a high-efficiency solution for new designs. 

“Annualized over 24/7 operation, an improvement of 0.5% equates to over 40kWh power reduction for every module in the system,” said Olle Hellgren, Head of Business and Product Management at Flex Power Modules. “Depending on the cooling solutions employed throughout a facility, a typical rule of thumb might suggest that every 1W of power wasted as heat typically requires 0.5W of energy to cool, so the total power saved is 60kWh per year from every module. If we multiply that saving by the number of blade servers in a typical data centre, the benefits add up significantly.” 

The BMR480 series is aimed at intermediate bus conversion (IBC), dynamic bus voltage (DBV) and distributed power architectures (DPAs), and is designed to power high-end and high-power applications supplied by front end AC-DC rectifiers, typically favored by the ICT sector. Networking and telecom equipment, industrial equipment, and server and storage applications can also benefit from the increased efficiency.

The module comes as


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