Supplement: Power
Pulsiv release 65W USB-C design with 30 per cent lower temperatures, integrated half-active bridge, and 96 per cent efficiency
Pulsiv PSV-EBAD-65USB evaluation board P
ulsiv Limited, the Cambridge (UK) specialists of power electronics technology, have released what is claimed to be “the world’s most efficient 65W USB-C GaN optimised reference design developed to address the complex challenges associated with thermal performance in power supplies”. According to the company, this development “is set to revolutionize the USB-C fast charging space by offering a unique combination of features and benefits not seen in other designs”.
The PSV-RDAD-65USB reference design combines Pulsiv OSMIUM technology with an industry standard QR flyback and highly optimized, ultra-compact magnetics. It represents the first in a series of designs aimed at pushing the boundaries of power conversion by drastically lowering operating temperatures, minimizing losses, and reducing size to create a sustainable platform for the USB-C standard.
Pulsiv’s chief product officer Dr Tim Moore has been managing the development of this design. He said: “Our mantra has always been focused on developing solutions that ‘do more while using less’ and this design demonstrates how Pulsiv OSMIUM technology can deliver fast charging without the associated complexity of managing high temperatures.
www.cieonline.co.uk
The demand for more power and faster charging of cordless products is rapidly increasing which impacts everything from mobile phones to power tools. This means more power is needed in a small form factor which is even more critical when developing in-wall/desk solutions which are sensitive to heat. With 30 per cent lower component temperatures, no inrush current, and high efficiency, we enable designs to become safer, smaller, and be more reliable.”
Specification overview Input voltage range: 90 – 265VAC (no input voltage derating)
Output voltage: 5 – 20VDC supporting PD3.0, QC4.0, BC1.2, & PPS (Fast Charging)
Output power: 65W max Transformer temperature: 3°C above ambient
Operating frequency: 125kHz Peak efficiency: 96 per cent Average efficiency: 95 per cent Half-active bridge: Included Line currents: 5A max Inrush current: Eliminated GaN optimised: Yes DC-DC converter: Quasi-resonant (QR) flyback
www.pulsiv.com Components in Electronics July/August 2024 31
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