5G Network Power Supplies for Power Amplifiers

ARTESYN / Advanced Energy's product line produces power supplies suitable for power amplifiers. Highly efficient DC/DC converters in the power amplifier (PA) power supply contribute to improving the efficiency of the overall system. Many of these telecom bricks have foldback overload protection that will not switch off completely, so they will not lose subscriber connections in the event of an overload condition or a fast transient.

The isolated DC/DC converters offer the low noise, regulated DC supply that RF power amplifiers require, and Advanced Energy offers modules designed for either LDMOS or GaN RF PAs.

Effective thermal management in the design is paramount, especially when it comes to remote radio heads (RRH). Advanced Energy’s DC/DC converters have been designed to be contact-cooled inside an IP-sealed enclosure. The ARTESYN / Advanced Energy RF PA bricks have a baseplate that is optimized for thermal bonding to the host enclosure. The full power rating of the unit will be available as long as the baseplate remains less than +100°C.

Since enclosure height is another essential factor in small cells for 5G, a slim/compact power footprint is essential. ARTESYN / Advanced Energy's DC/DC modules offer 12 mm height in IP-sealed cases and can handle temperatures higher than +85°C on the baseplates at full load when in the sun.