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[Verified] T12 soldering iron 616 control board lm358 pmos schematic diagram has comments

Overview

T12 616 control board lm358 pmos npn has been verified and modified without errors, and the schematic diagram has comments

The pmos circuit diagram online is wrong. The resistor is wrong. Quite a few mistakes. Maybe the circuit was drawn and released without verification.

Schematics are annotated.

If the problem occurs again, it may be due to problems such as virtual soldering.

For no pulse or abnormal heating, connect a 100 ohm resistor in series with the diode. The circuit is not left to be connected by yourself.

This circuit is designed to be 91 degrees to 570 degrees. .

So it can be adjusted to 100 degrees and the temperature will rise without any problem. . So as not to burn to death. .

If the temperature rises slowly, the 6-pin capacitor can be appropriately increased. The temperature control response may not be that fast.

Design Files

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