What is Cloud Power?

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What is Cloud Power? [Copy link]

Application Corner: Cloud Power

is a general term to describe the power supply for equipment used to transmit, store and process cloud data. In telecommunications or transmission applications, cloud power will power baseband units and remote radio units. Server farms used for storage and processing will also require large uninterruptible power supplies to ensure that users can still access the cloud in the event of a temporary power outage. Each server will also require a power supply unit (PSU), as well as numerous DC-DC converters to provide point-of-load power.

Since IoT has significantly increased the number of endpoints capturing some kind of data (approximately 2 billion devices were shipped in 2017, up 54% from 2015), large amounts of memory are required to process and store the data. To do this, large server farms are being built, which consume a lot of power. The power conversion will generate heat, which will eventually be lost. This heat generation is so great that cooling costs are one of the main costs of running a server farm. This has led PSU manufacturers to continuously seek to build more energy-efficient PSUs. In addition, in order to reduce cooling costs with better energy efficiency, the size of the PSU needs to be reduced, so that more servers can be installed in the same space. There are many ways to transmit this data, but the one being deployed in 2019 is 5G, the next generation of wireless interconnect. Once 5G technology is fully utilized, it will be able to provide speeds that are 10 times faster than current 4G LTE networks. This increase in speed requires higher power, which will increase the number of power MOSFETs in each 5G radio by about 5 times.

To this end, ON Semiconductor provides high-performance discrete solutions to successfully achieve the high efficiency goals of the cloud power market. Compared with the previous generation of super junction devices, the new high-efficiency discrete 650 V SuperFETIII MOSFET series enables cloud power to achieve this higher efficiency. SuperFETIII technology is available in three different versions: Easy Drive, Fast Recovery (FRFET) and Fast (FAST). The application and topology will determine which version should be used to obtain the best energy efficiency.

For the secondary side, ON Semiconductor offers a full range of medium and low voltage MOSFETs that have been optimized for cloud power. T6 technology offers the industry’s lowest RDSon for 30V, 40V and 60V. The new T8 technology offers the same ultra-low RDSon as T6 for 25V, 40V, 60V and 80V, while further improving the switching parameters. For 80V, 100V and 120V, PTNG technology is used to provide excellent RDSon and body diode performance. As manufacturers challenge themselves to achieve higher efficiency and ruggedness, they are developing devices like ON Semiconductor’s 650 and 1200V silicon carbide (SiC) diodes for use in power factor correction (PFC) stages.

With the dramatic increase in cloud-based IoT, it is important that the cloud is powered by the most efficient power sources. ON Semiconductor is doing its part by offering industry-leading MOSFETs from 25V to 650V and developing the next generation of semiconductor SiC.