Technical FAQs 4

What type of power supply is used in a data center?

Typical Data Center Power Supply Architecture In the LLC part of the circuit, 650 V MOSFETs are also commonly used The circuit maintains . ZVS (zero voltage switched) operation, as well as reduced turn-off currents, so losses are much lower, and the circuit can be operated at 100−500 kHz, allowing the transformer to be made smaller.

Why do we need a WBG server power supply?

To meet the need for improved efficiency, lower operating and lower BOM costs, there is renewed interest in WBG (Wide Bandgap) solutions. The same can be said for the efforts to push Server power supplies to ever increasing levels of efficiency with minimal heat loss.

What is the efficiency of a linear power supply?

Because of these reasons, the efficiency of the linear power supply is around 40% to 50%. Linear power supplies also come in a variant in which the voltage regulator employs an LDO (low dropout) regulation. These variants have less power loss in the voltage regulator block hence a higher efficiency - around 60% to 70%.

What do power supplies have in common?

What these power supplies all have in common is a power-factor-correction PFC section, that rectifies the AC to DC at near unity power factor with an output voltage of 400 V, followed by a DC−DC converter which converts this 400 V to 48 V or 12 V for use within the system.

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