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Power harvesters enable next wave of energy harvesting design

Tue, 11/26/2013 - 2:47pm

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Texas Instruments introduced five new next-generation power management integrated circuits that acquire and manage microwatts (µW) to milliwatts (mW) of power harvested from light, heat or mechanical energy sources. The bq25570, bq25505, TPS62740, TPS62737 and TPS62736 maintain the industry’s lowest levels of active quiescent current, according to the company, and enable battery-free operation to wireless sensor networks, monitoring systems, wearable medical devices, and mobile accessories. The bq25570 boost charger with integrated buck converter consumes 488 nA of quiescent current and achieves greater than 90-percent efficiency at output currents lower than 10 µA and features maximum power point tracking to extract and manage power from photovoltaic cells and thermoelectric generators, and it supports any energy storage element.

Texas Instruments, www.ti.com

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