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Soldering Iron Temperature Controller

Being a electronics geek we have to know detail about soldering temperature. Here is the circuit of simple soldering iron temperature control, in order to control or limit soldering temperature.

Circuit Description of soldering iron temperature controller

The circuit of soldering temperature controller is designed and fabricated using DIAC and TRIAC with its corresponding passive components. The varying of temperature from zero to maximum is done by TRIAC where DIAC is used to control the TRIAC firing in both directions. The potentiometer used here is for setting the temperature of the soldering iron.

PARTS LIST

Resistors (all ¼-watt, ± 5% Carbon)

R1 = 2.2 KΩ

VR1 = 100 KΩ

Capacitor

C1 = 0.1 µF/400V

DIAC1 = DB3

TRIAC1 = BT136

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