Technical document of the Weller ec2002 heat regulated soldering iron. The control circuit is based on the LF353N and SL443A ICs, and the power control is provided by the TIC225M triac.
Besides the temperature control card of the Weller ec2002 soldering iron, there is an additional display card for display. Heat detection is provided by the Thermocouple sensor in the soldering iron.
In the display section, 3 7 segment displays (MAN71A) are used. There are heat control and display driver CA3161E circuit diagrams and pcb drawings.
Weller EC2002 Circuit Diagram
Weller Soldering Adjustable Temperature Control Circuit :
Weller Soldering Adjustable Temperature Control Circuit
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Published: 2009/05/10 Tags: power electronic projects
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