TGP-751 datasheet(4/19 Pages) ETC2

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Micropelt - preliminary - Datasheet TE-CORE v2.5 | Page 4

Thermoharvesting Module

Micropelt TE-CORE

Introduction

1.1 System Introduction

The TE-CORE thermoharvesting module converts locally

available waste heat thermoelectrically to indefinite free

electric energy - as long as the heat flows through the

thermogenerator (TEG). The integral power conversion

and management circuit steps up the ‘gradient-analog’

output voltage of the TEG and outputs a fixed voltage

(2.4 V by default). The harvested energy is being buff-

ered in an extendable capacitor and controlled by a

configurable hysteresis.

For the TE-CORE to serve as the exclusive power supply

to an application it is mandatory to maintain a positive

energy balance, i.e. the amount of energy harvested

over a specific period must be equal or greater than the

energy consumed over that same period (see 1.5).

1.4 Applications

Consider thermoharvesting whenever both wiring and

battery maintenance are hard to accept for reasons of

cost, accessibility, manpower, logistics, hazard etc.



Wireless sensors and sensor networks (WSN)



Industrial process control & monitoring



Condition monitoring



Condition Based Maintenance (CBM)



Thermal event logging and alerting



Intelligent buildings and HVAC



Automatic meter reading (AMR)



Smart grid & metering



Energy monitoring & control



Remote sensing & tracking

1.2 Features



Operates from temperature differentials

of < 10 ºC between a surface and ambient



Operates on heat sources up to 105 °C



Also operates from cold sources



High-efficiency low-cost DC-DC booster design,

leveraging micro-thermogenerators with high

output voltage and high electrical resistance



Output voltage 2.4 V standard;

configurable between 1.8 V and 4.5 V



Extendable energy storage capacity



Configurable buffer hysteresis



Exchangeable heatsink



Interface connector compatible with TI eZ430-

RF2500T and similar wireless evaluation boards



RoHS and WEEE compliant

1.3 Benefits



Battery-free and cordless operation of electrical

consumers



Indefinite maintenance-free local energy



Scalable harvesting capability: Supports Micropelt

TGP-751 (TE-CORE7) and TGP-651 (TE-CORE6)

Thermogenerator packages.



Power supply for life-long operation of a low power

device.

TE-CORE Module with TGP Thermogenerator

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