Frank Pacquiao

user Test Engineer

city ISI


  • IR-Controlled Soldering Station

  • Created: Mar 03, 2014

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Description

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Summary

An IR-sensitive phototransistor is used to sense soldering-iron temperature. The phototransistor must see the tip through an opaque tube to avoid stray light, and the phototransistor should preferably be fitted with an IR filter. An old photo negative, dark red plastic, or red or black glass can be used. The iron sits on a holder.

2 Comments


Colin55

Why don't you draw the 9v of the supply to the soldering iron. You can use an ordinary diode to measure the temperature

Posted: Mar 04, 2014


Kristina Izarra

Je ne vois rien de mal à ce circuit

Posted: Dec 16, 2014


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