Temperature-Controlled Soldering Iron circuit


Posted on Feb 4, 2014

One reason why commercial soldering stations are expensive is that, in general, they require the use of soldering irons with inbuilt temperature sensors, such as thermocouples. This circuit eliminates the need for a special sensor because it senses the temperature of a soldering iron heating element directly from its resistance. Thus this circuit will, in principle, work with any iron with a resistance which varies predictably and in the right direction with temperature (ie, positive temperature coefficient)..


Temperature-Controlled Soldering Iron circuit
Click here to download the full size of the above Circuit.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    40Mhz-universal-counter
    Easy Build Motorcycle Alarm
    DIY mobile phone jammer Schematic Diagram
    Adjustable 3 Ampere Regulator
    10 led VU Meter using LM3915
    optimize varactor tuned oscillators
    Contrast Control for LCDs
    Pulse signal generating circuit and display
    Effective output 50W distortion rate of 0.003% thick film hybrid amplifier
    Balanced mixer circuit consisting of two dual-gate field effect transistor formed
    Application Circuit CW4960 CW4962 dual voltage + 5V 1.5A -12V 100mA output



    Top