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Term: Power Supplies
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Use the Superior Power Density of Gallium Nitride FETs to Design a USB PD3.1 Power Supply with a 240 W, Universal AC Input

Use the Superior Power Density of Gallium Nitride FETs to Design a USB PD3.1 Power Supply with a 240 W, Universal AC Input
Aug 11 2022

48 volts is increasingly being adopted as the new standard for computing data centers and consumer electronics such as laptops. The new USB PD3.1 standard is also making inroads into laptops driven in part by the increase in USB voltage to 48 V that increases the total power delivery up to 240 W given a current limit of 5 A for the connectors and cables. Compatible power supplies using the new USB PD standard also face increasing pressure to yield a small form factor solution driving the need for high power-density. The fast-switching speed and low RDSon of GaN FETs address this challenge in multiple circuits that make up the power supply.