Energy Harvester

SparkFun | A-000000-00799
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The Energy Harvester module is an energy capture device that converts piezoelectric energy and solar energy, and provides a choice of four output currents.
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The Energy Harvester module: multiple energy sources and output modes.

Easily collect minute quantities of energy from piezoelectric or solar sources using the Energy Harvester module. It uses the LTC3588 device from Linear Technologies to capture piezoelectric energy, and can also be used to control a DC source (limited to 20 volts) for both types of source. The Energy Harvester module stores continuous current at extremely low levels and provides outputs in four different voltage modes: 1.8 V, 2.5 V, 3.3 V and 3.6 V.

Uses of the Energy Harvester module

The Energy Harvester module will allow you to power small devices via a photovoltaic cell or a piezoelectrically generated current. It can therefore supply sufficient energy to power your wearable electronics, watch or wireless sensors.

The Energy Harvester module schematics is visible below:

Energy Harvester module schematics

Technical specifications of the energy harvester module

  • Quiescent continuous input current: 950 nA
  • Quiescent continuous input current (in UVLO mode): 450 nA
  • Input voltage: 2.7 V to 20 V
  • Full-wave bridge rectifier giving minimal output current loss up to 100 mA
  • 4 selectable output voltages: 1.8 V, 2.5 V, 3.3 V and 3.6 V
  • Built-in high performance DC-DC hysteretic buck converter
  • Input current shunt protection lets you sink up to 25 mA for an input voltage less than or equal to 20 V
  • Under-voltage lock-out system (UVLO)

Note:The Energy Harvester module can also be used on its own as a nanopower buck regulator.

Resources for the Energy Harvester module

You will find in the following resources documents that will help you get started with the Energy Harvester module:

Energy Harvester module schematics

Energy Harvester module schematics

Energy Harvester module Eagle files

Energy Harvester module Eagle files

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