Flex Ltd.

Jiangsong Zhang

Xiao Sun

Minghui Dai

Yu Ying Wang

A method of operating a vibrational energy harvesting system includes providing an energy harvester and an energy storage module. The energy storage module is coupled to the energy harvester to transfer energy to the energy storage module. The method also includes determining whether the energy transferred exceeds a predetermined threshold. The method further includes limiting the energy transferred to the energy storage module by a passive device when the energy transferred exceeds the predetermined threshold.

Method of energy storage in vibrational energy harvesting

A planar antenna can include one or more high permeability objects that are added near the planar coil's tips. Further, the planar antenna includes a coil having two or more layers, with each layer having two or more turns. The planar antenna also has a restricted conductor arrangement, where there are a maximum number of turns arranged in any horizontal layer. A turn's conductor could be a single conductor or could be two (2) or more conductors arranged in parallel.

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Shanghai, China

Jiangsong Zhang