The last few years have seen quite a large shift in the mobile market as smartphone vendors have engaged in a literal arms-race aiming for the fastest charging phones possible. In only a few years we’ve seen phones go from what used to be considered “fast charging” at rate of up to 18W to new advertised 65W rates. What a lot of consumers however often misunderstand, is that these new fast-charging systems aren’t primarily enabled by new battery technologies, but rather by new advances in charging systems that have become more and more efficient.
There are many different solutions to increasing charging efficiency, but today’s topic surrounds a younger start-up called Lion Semiconductor that specialises in a very different voltage conversion technology for power ICs, called switched-capacitor voltage converters. The San Francisco based start-up is seeing some increasing success in today’s mobile market where it enables vendors to achieve some of today’s fast charging phones.
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