Ericsson unveils first power density converter based on digitally controlled dc/dc converters

According to the company, the new BMR453-0108/014 module is the first high power density solution based on digitally controlled dc/dc converters. It is said to handle high power and deliver tightly controlled output voltages, making it suitable for use in networking and data storage equipment. The module is available in an industry standard quarter brick footprint and provides an output voltage of 12.45V with an output current of 60A, delivering a total output power of 711W. The BMR453-0108/014 combines two Ericsson BMR453 series power modules, assembled in parallel and offers a power density as high as 33.38W/cm² while it embeds digital core controllers. According to Ericsson, its built in energy optimisation capabilities enable the BMR453-0108/014 to deliver 96.9% efficiency at half load and up to 95.8% at full load. "Not only are there are very few products available on the market that can to deliver this level of power handling in a quarter brick format, the new Ericsson BMR453-0108/014 is also the first high power density solution based on digitally controlled dc/dc converters," said Patrick Le Fèvre, marketing and communication director of Ericsson Power Modules. The device has been specially designed for data communications applications requiring high power and a regulated intermediate bus converter within a limited footprint. It offers a 44 to 75V input voltage range and is compatible with 48, 52 and 60V systems. Ericsson says the BMR453-0108/014 is suitable for powering networking applications such as network processing encryption, load balancing and managing data centre traffic, in addition to powering arrays of disk drives, which require a stable voltage to guarantee data integrity. It is also suitable for use in production and test systems, such as those used in the semiconductor industry.