Analogue Devices has managed to create a 500W switched-capacitor power chip for fixed ratio power conversion at up to 72V and 99% efficiency. The main application foreseen for the chip, the LTC7820, is 48V non-isolated dc bus conversion, although it is capable of up, down and inverting conversion at a variety of ratios. An example ...
Read full article: ADI hits 500W with switched capacitor power converter
from Electronics Weekly https://www.electronicsweekly.com/news/products/power-supplies/adi-hits-500w-switched-capacitor-power-converter-2017-06/
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