Implementation the SoC of PCB Reflow Soldering

This paper presents a PID temperature control system for the soldering, printed circuit board. By using a thermocouple to measure the temperature inside the oven And processing the signal using a microcontroller to calculate the difference between the set value and the current output value, To reduce errors to a minimum In order to control the infrared heater to keep the temperature inside the oven constant, And according to the reflow soldering process, can display temperature and order through the touch screen.