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A resistor at 150 °C...how?

Discussion in 'Electronic Components' started by Francesco Piantedosi, Nov 24, 2004.

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  1. Hi all,
    I have to buil a circuit to use a resistor as a heater; what I want is
    to use this resistor to heat a surface at 150 °C.

    My first problem is to choose right resistor(I have ONLY 15 mm diameter)
    able to dissipate this heat power without crash!

    The second problem is design ctemperature control circuit...the
    sensor(LM35 or lm45) should be in contact with surface I have to heat
    and give feedback to power supply of my resistor...any ideas?

    Thanks
    Francesco
     
  2. guy pastuzak

    guy pastuzak Guest

    hi all

    I think the best for this kind of application could be, for instance
    http://www.vishay.com/docs/50013/rh.pdf

    Maybe you will have to transform a bit, one or more of them.

    I suppose the surface to heat is metal.
    lm35, in metal case, could be fixed to that surface.

    lm35 is rated up to 150°C

    good luck
     
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