Team Effort Forecasts The Future Of Energy Harvesting

Nov. 11, 2010
Electronica 2010 – Linear Technology and Energy Micro have combined their expertise in energy harvesting power supplies and ultralow power 32-bit microcontrollers to produce a demonstration of the opportunities for smart energy harvesting applications.

Electronica 2010 – Linear Technology and Energy Micro have combined their expertise in energy harvesting power supplies and ultralow power 32-bit microcontrollers to produce a demonstration of the opportunities for smart energy harvesting applications. Based on Energy Micro’s starter development kit, the demonstration relies on Linear Technology’s LTC 3588 piezoelectric energy harvesting power supply and Energy Micro’s ARM Cortex-M3 enabled EFM32 Gecko microcontroller to create a wireless sensor node acquiring data from a three-axis accelerometer and transmitting it over a Zigbee RF transceiver. The energy harvested from a piezoelectric transducer is stored on a capacitor bank for later consumption by the accelerometer and radio according to the MCU’s optimized sequencing software.  The MCU spends the majority of its time in sleep mode until woken by the LTC3588’s power good signal. The MCU monitors energy levels at all times to ensure total circuit consumption stays below harvested energy levels. ENERGY MICRO AS, Inverness, IL. (847) 345-7691. LINEAR TECHNOLOGY CORP., Milpitas, CA. (800) 454-6327.

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