The first four papers in this session focus on wireless sensing applications. They can be powered by harvesting energy from RF, piezoelectric, photovoltaic and thermoelectric energy sources. Many innovations focus on optimization of cold-start conditions in no-battery or dead-battery situations. Several techniques are used to minimize the number and size of external components such as inductors and capacitors. Maximum-Power-Point Tracking (MPPT) remains an important feature that needs optimization. The last four papers in the session focus on the fast-growing market of wireless charging for cell phones and wearables. The emphasis here is to comply with all the available standards (A4WP, Qi and PMA) with a single solution.
['Anton Bakker', 'Yuan Gao']
Session 21 overview: Harvesting and wireless power