We are surrounded by vibrations in transportations, production processes... And we also do produce some energy by pushing buttons, like typing on computer keyboard, pushing buttons on remote controls ... The idea of energy harvesting is to make use of the surrounding, and wasted energies, in order to power smart and wireless applications.

Arveni's microgenerators are primarly characterized by their high yield of conversion: 'world best in class yield', that's why our microgenerators make the best of the available energy:

Push button harvesting: >80% of the mechanical incoming energy is turned to electricity in laboratory conditions (see University certificate of performance) and up to 40% in real product. Competition best level is lower 10%, and most often 2%.

Microgenerators can power greedy radios and sensors !

  • e.g. >900m range with standard radios in 868MHz, and more kilometers with ULP radios.
  • e.g. heavy radio protocols, like IO-Homecontrol, or KNX, Zigbee Pro...

 

Vibration harvesting: 200mW are produced by our T-Rex vibration demokit, at 50Hz and 0,5G acceleration. This is 8 to 40 times more than the competition.

Our vibration microgenerator is the world state of the art, and received customer prize recognition, 'best industrial innovation for railtrack sensing' in 2012

 

A glimpse in the technique of the microgenerator:

First, piezoelectricity is the physical matter propriety that is used in Arveni's microgenerators (vs magnet and coil movement for our competitors). Piezoelectric is a solid state technology, which shows no significant wear in time, and use. ARVENI's microgenerators are very long lasting power sources.

In push button applications,the implementation of an energy harvester requires two interfaces:

  1. Mechanism, which is between the finger of the user and the microgenerator
  2. Electronic circuitry has to be designed to deliver the desired voltage and current to supply some radio circuits, μC, sensors, screen...

Arveni delivers only complete module including the 2 interfaces.