Ericsson unveils new Advanced Bus Converter for telecom and datacom applications


By Telecom Lead Team: Ericsson
has unveiled FRIDA II platform, its second digital-power Advanced Bus Converter
platform for use with board-mounted DC/DC power modules in telecom and datacom

Ericsson was the first company to introduce digitally controlled
and PMBus-compliant advanced DC/DC bus conversion technology with its BMR453.

The new FRIDA II platform reduces energy consumption. Delivering
lower power dissipation in end-customer systems- decreasing the requirement for
hard cooling – the new platform will also bring higher reliability, lower CO2
emissions and lower Total Cost Of Ownership (TCO2).

The highly advanced power controller, in conjunction with
control algorithms, reduces the number of components used in the FRIDA II
platform by approximately 10 percent. This contributes to a reduction in cost
and a further increase in reliability. The platform’s integrated transformer
and feedback components designed to meet 2250 VDC isolation requirements for
applications requiring this high level.

Ericsson has a strong track record in delivering leading-edge DC/DC
advanced bus converter technology to the market. In 2008, Ericsson pioneered
breakthrough technology in the introduction of digitally controlled DC/DC
Advanced Bus Converters. Now, in this major step forward in the company’s
continuous quest to deliver energy-optimized solutions, the FRIDA II platform
will further enable its customers to reduce their energy consumption and carbon
footprint,” said Patrick Le Fèvre, marketing and communication director of
Ericsson Power Modules.

Built around the capabilities of the 32-bit ARM7TDMI-S
microprocessor core, the FRIDA II platform integrates brand new hardware and
firmware that has been optimized to guarantee the highest efficiency at any
point of operation. The platform offers a tightly regulated output voltage
across the entire operational range from 36V to 75V – together with an
unprecedented output response to input disturbances such as line transients.

FRIDA II also includes proprietary firmware to integrate complex
scenarios and the challenges faced by DC/DC board-mounted power supplies in
telecom and datacom applications, such as in Advanced Telecommunications
Computing Architecture (ATCA or AdvancedTCA) or remote telecom equipment that
is connected to an unstable power grid.

Exploiting the possibilities offered by its core processor’s
fast response and computational abilities, the embedded firmware integrates an
ultra-fast response-loop algorithm.

Ericsson’s proprietary dead-time control algorithm has also been
augmented with additional functionalities to reduce switching power losses and
ease component stress during switching, Integrated transformer layout and the
use of leading-edge power transistor technologies enables the FRIDA II platform
to deliver the high level of performance required in Information and
Communication Technology (ICT) applications.

The first product based on the FRIDA II platform will be a
quarter-brick advanced bus converter, called the BMR456, which will deliver an
output power of 400W and above; followed by a new eighth-brick format device,
the BMR457, which will deliver an output power of 250W and above.

Recently, KPN International’s subsidiaries E-Plus Group and KPN
Group selectedEricsson
to upgrade their mobile backhaul in Germany and Belgium,
respectively, over the next three years.


[email protected]