张三叔

CNC 936 soldering station, PID temperature control

Overview

Based on the last work of 51 microcontroller, I learned about PID control by the way, and then started to learn m3 and risc-v. As shown in the actual picture, the power supply requires 24v and 5v STC15W4K as the control core. It uses the 5v power supply of the enhanced pwm generator control part and the 24v DC power supply of the heating load part, using optocoupler isolation. The push-pull drive mos tube max6675 collects the K-type thermocouple voltage digital PID of the electric soldering iron. The execution cycle is 300ms, the integral separation, and the parameters have room for optimization. The actual test is to tin the tin in 30 seconds. Source code, the compiled hex file is in the attachment, use the stc-isp serial port to download

Design Files

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Update:2025-06-19 03:00:20

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