Pulsiv to deliver groundbreaking USB-C reference designs & finished modules with more than 95% average efficiency

Posted 27 February 2024

Pulsiv Limited is set to release a series of reference designs and assembled modules for USB-C applications that will deliver an average efficiency of more than 95%. This groundbreaking achievement, which minimises energy waste under all operating conditions, has been developed in collaboration with GaN leader, Innoscience and magnetics expert, Frenetic. Designs will be released throughout 2024 to support a new class of sustainable USB-C chargers, adapters, and in-wall sockets. The first 65W solution is expected to be announced towards the end of March 2024.

The front-end of the design utilises Pulsiv OSMIUM technology to efficiently manage the AC to DC conversion process with zero inrush current and no input voltage derating. Using an intelligent active valley fill approach, this patented method also enables the use of smaller system components compared to conventional designs. The DC-DC converter in the 65W variant is based on an industry standard QR flyback. However, when combining a Pulsiv OSMIUM front-end design with optimised magnetics from Frenetic, it is now possible to use an EQ20 core, which provides a 20% reduction in the flyback transformer size.

Frenetic CEO, Chema Molina comments: “By leveraging Pulsiv’s innovative OSMIUM technology, we’ve been able to highly optimise the magnetics to reduce size and drive the efficiency of the flyback transformer to a level we’ve not seen before. This significant development will enable customers to achieve new levels of performance, size, and cost, and we’re excited to be part of such an innovative solution.”

General Manager for Innoscience EMEA, Denis Marcon adds: “We’ve successfully demonstrated that GaN technology is perfectly suited to improving the performance of power electronics designs. Pulsiv OSMIUM technology adds further benefits by significantly improving the overall average efficiency and reducing energy waste. I’m delighted that Pulsiv has selected Innoscience GaN e-mode devices (InnoGaN) for their 65W reference design.”

Pulsiv Chief Product Officer, Dr Tim Moore has been managing the roadmap of USB-C solutions and comments: “We are very excited to be bringing this game-changing technology to the market and deliver our mantra of ‘doing more while using less’. By achieving more than 95% average efficiency, it enables us to provide efficient in-wall USB-C solutions that safely manage the critical thermal requirements. This enhances reliability, minimises overall size, and optimises cost to set a world-leading precedent in USB-C power supplies.”

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