PIEZOELECTRIC ENERGY HARVESTING FOR CONVERTING NATURAL ENERGY INTO ELECTRICAL ENERGY from Korea electronics technology Institute.
1. Concept.
The energy harvesting is the technology to convert the energy such as power, pressure and vibration into electric power.
2. Piezoelectric generator.
- Pass external mechanical energy on to a Piezoelectric material.
- Convert the transfered energy to electric power using Piezo-electric materials.
- Accumulate the converted energy in Super-capacitor or secondary battery through electric circuit.
3. According to the size of device, energy generator is classified between Macro scale and Micro scale.
- Macro scale : Energy generation by Human Activity movement and car vibration.
- Micro scale : Charging sensor or small electronic device by Small vibration and shock.
4. Strength
- Adding various modes to the existing vibration mode, improvement of the generation quantity.
- Designing modes that are different in size, improvement of Flexibility.
5. Application Area.
- Driving power of the sensor located on inaccessible point.
- Emergency electrical system for mobile phone
- Night lighting by vibration of wind and bridge.
