Delta, a global leader in power and thermal management solutions, just participated in the OCP Global
Summit and introduced its ORV3 power shelves and DC-DC converters, both essential solutions to ensure
the energy efficiency of the fast-growing AI server segment. These ORV3 power shelves boast 18 kW and
33 kW power output and up to 97.5% energy conversion efficiency while the cutting-edge DC-DC converters
deliver smooth conversion of various power voltages with efficiency as high as 98.3%.
Ares Chen, General Manager of Delta Power and System Business Group, said, “In 2022 alone, Delta’s
power solutions for servers and related ICT infrastructure saved over 3.39 billion kWh of electricity for our
worldwide customers by leveraging our five-decade core competence in high-efficiency power electronics.
The releases of AI chatbots and similar applications accelerate the demands of AI servers while bringing new
challenges to server power supply manufacturers. We will continue to focus on ‘higher power output, density
and efficiency’ and to collaborate closely with our computing giant customers to ultimately align the
megatrends of AI and sustainable development.”
AI learning and training require a foundation of specialized high-level servers. Compared to regular servers
that only applies to CPUs, an AI server usually requires four to eight GPUs in addition to two CPUs to
perform AI computing and much higher peak power than traditional servers. Delta’s ORV3 power shelves are
6-slot chassis solutions that accommodate 3kW or 5.5kW power supply units with a maximum power of 18
kW or 33 kW separately for high power AI servers. The power shelves could also be designed with 5+1
redundancy to ensure the stable operation of AI servers. Aside from the ORV3 products, Delta also
presented the high power 120 kW power shelf which consists of twenty-four 5 kW power supply units with up
to 97.5% power conversion efficiency. This power shelf can also be configured into a 60kW 2N redundancy
power system to ensure high stability and reliability for both AI and traditional servers.
As to DC-DC conversion, the inevitable high-voltage power transmission of AI servers heightens the
demands of DC-DC converters between 48 V server boards and 12 V components. Delta’s RBC and UBC
Series DC-DC converters are suitable for the applications. Both Series are in compliance with the PMBus
communication protocol. The RBC Series features an up to certified 98.3% efficiency, 0.5 – 1% higher than
traditional ones. The UBC Series boasts a 5,300 W/inch3
high power density and a bi-directional function to
convert from 48V to 12V and vice versa to satisfy various customer needs.
About Delta’s Power and System Business Group (PSBG)
Since Delta started the mass production of switching power supplies in 1983, PSBG has been dedicated to
the development of cutting-edge and energy-saving power products and systems to empower the innovation
of cloud computing, network connectivity, client devices, industrial, medical, lighting, appliance, e-mobility,
and other applications. Together with our global customers, Delta’s PSBG will continue to develop next generation power technologies to empower
a smart and energy-efficient future.