ANDROID AUTHORITY - Jun 8 - The technology, known as PoWi-Fi, turns a high frequency Wi-Fi waveform into usable DC power which can be used to charge low-power gadgets and IoT devices. The PoWi-Fi harvester circuit makes use of a typical full-wave rectification and a “reservoir” capacitor setup found in AC-powered electronics.
by Rob Triggs
See full article at Android Authority
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