PRELIMINARY DATA SHEET

© EnOcean | www.enocean.com

Subject to modifications | March 2012 | Page 1/ 2

ECT 310 Perpetuum

EnOcean powered by Thermal Energy

ECT 310 is a low-cost ultra-low-voltage

DC/DC converter for powering battery-less

EnOcean radio modules by Thermal Energy.

Wireless sensors and even actuators can be

operated.

Operation starts at typ. 20 mV relating to a

2 Kelvin temperature difference at a stan-

dard low-cost Peltier element.

The output power is in the range from µW to mW

and depends on the actual temperature differ-

ence at the Peltier element. ECT 310 is designed

and optimized for powering EnOcean radio mod-

ules in sensors and actuators. To achieve best

system efficiency the output voltage is regulated

only roughly. A typical thermo-driven sensor

consists of a sensor element, a small Peltier ele-

ment, the ECT 310 DC/DC converter and an EnO-

cean STM 300 or STM 312 radio module. Other

than STM 300, the STM 312 module already has

an energy storage on board.

Energy Calculation Example

Output power from ECT 310 in combination with

Peltier element TEC2L-15-15-15-5.6:



Red = temp. diff. @ Peltier, blue = temp. diff.

against ambient temp. (via heat sink).



Start up at 2K, ~100 µW of energy is already

produced for a temp. diff. of 7 K.

An EnOcean radio module that wakes up every 2

min. to transmit a telegram needs ~5 μW on

average only. Enough energy is left even to

power some actuators!

ECT 310 key features



Best in-class Thermo Harvester solution



Low-cost DC/DC converter, works with

lowest-cost standard Peltier elements



Designed and optimized for thermo-

powered EnOcean wireless applications



SMD footprint



Directly to be soldered onto EnOcean STM

312 wireless sensor transmitter module



Powers STM 300 module to realize bi-

directional wireless sensors and actuators

For evaluation of ECT 310 the development kit

EDK 312 is provided:

EDK 312 consists of following parts



868 MHz STM 312 all-in-one wireless sen-

sor module with integrated energy storage



ECT 310 ultra-low-voltage DC/DC convert-

er



Peltier element TEC2L-15-15-15-5.6



Adapter Board EVA 330



Detailed documentation

Key Applications



Sensors for Building and Industrial automation

and Medical (heat cost allocator, temperature

sensor, process control, preventive mainte-

nance, etc.)



Actuators for Building and Industrial automa-

tion (water valve, air flap, other mech. dev.)