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Registered Member #61406
Joined: Thu Jan 05 2017, 11:31PM
Location:
Posts: 268
I've found this that better match's the source, its adjustable and plan on selecting 15 volt, Would this output a stable 15 volt and change the current based on load and source supply or will the voltage be pulled down. Cheers
Registered Member #162
Joined: Mon Feb 13 2006, 10:25AM
Location: United Kingdom
Posts: 3140
Unless you have discovered 'free energy' the output power cannot exceed the input power, - unless you have a source of stored energy. So you will have to tailor your load to the rate of energy production, or, as with most energy harvesting schemes, you will need to store energy for later use via batteries, capacitors, flywheels, thermal storage .......... Design your TEG system more as a battery charger than as a power supply.
The most appropriate use would be to power something that only needs power when it is available, e.g. exhaust or blower fans, work space illumination, radio etc.
A thought: if the audio power amplifier of a radio uses one of the chap eBay Class-D modules directly powered by a TEG, the audio power will automatically follow the TEG power production rate, the louder the fire, the louder the radio (or PA system), and vice-versa, automatic automatic volume control :)
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DC/DC converter question
