30 Oct '15, 5pm

Why the Internet of Things Needs Energy Harvesting

Kinetic energy can be converted into electrical energy by means of the piezoelectric effect; mechanically deforming a piezo crystal (or Micro Electro Mechanical System piezo-MEMS) with tension or pressure to generate electrical charges that can be measured as voltage on the electrodes of the piezo element. Piezoelectric vibration energy harvesters convert this mechanical vibrational energy into alternating electrical energy (AC). This AC is then electronically converted to DC, which can be used to drive wireless IoT applications or recharge a battery. Piezoelectric energy transducers deliver maximum energy when operating at the resonant frequency of the vibrational source, and when operating into a load designed to match the piezoelectric output impedance. The key for harvesting the vibrational energy with any piezoelectric material is to fully understand the vibration env...

Full article: http://www.element14.com/community/groups/internet-of-thi...

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