Peltier Element- Schematic Help H-bridge
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Hello,
I need help to anyone who can help me
A peltier can be reversed. So If I supply + to RED and - to BLACK
it works as expected. But if I reverse the polarity, ( - to RED, + to BLACK), it will also reverse the cold and hot side.
(To prevent the other side getting too hot, I have a heatsink on it with a fan blowing cool air over it.)
I want to connect and control the element using MSP430 as launchpad(power supply: 3.3v) I use TEC-40-33-127.
I need to think about how to connect and control the 4 switches (4x IRF1405) to power the peltier in both ways, how to use the H-Bridge in both polarities.
I need your help because I don't know how to make the circuit schematic I don't know what values to choose from resistors,
capacitors and what kind of diodes to use, how to to maintain the current so as to the whole circuit should work .
I attached below an exemple without H-bridge and I want something similar as in the schematic but for my element and with H-bridge.
Thank you!
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If it were me then I would look for a full bridge mosfet driver chip, to drive four N-channel mosfets.
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Wouldn't it be easier to just use a motor driver (module) which is essentially an h-bridge? Saves you the trouble of dealing with components.
