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[Pic Heavy] My DIY LPM by Kalmito

I need to connect 10x10 Ohm SMD resistor to series or Parallel Connection ? How thick is the plate ?

lm317pinout.gif


Which the S pin ?
 
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Kalmito said:
I need to connect 10x10 Ohm SMD resistor to series or Parallel Connection ? How thick is the plate ?

lm317pinout.gif


Which the S pin ?
Click to expand...

You solder the 10 resistors in series so they look like an "S". There you get an 100Ohm resistor in form of an "S". This one you are going to glue on the aluminum plate. The plate should be about 1-2mm thick.

So 100Ohm*0,050A= 5V and 5V*0,050A=0,250W or 250mW.

at 100mA you get this:

100Ohm*0,100A=10V and 10V*0,100A=1W.

You can of course use an constant voltage source for this too but a constant current source is better and more accurate.
 
2.JPG


This is about what I mean. But rather than glueing the resistors directly on the TEC like a ring in form of an "U" I did it on a aluminum plate in form of a "S".
 
Last edited:
This is about what I mean. But rather than glueing the resistors directly on the TEC like a ring in form of an "U" I did it on a aluminum plate in form of a "S".
Click to expand...


Yes Yes! I understand! :)
Thanks Brother!Its very good!
I need to buy DC PowerSupply to set the voltage and milliamps.
 
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