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Modular PWM fan control board

Overview

This modular design controls four 12V DC PWM speed-regulating fans.
It can be connected to the motherboard via connectors or integrated into the circuit.
Reserved address bits allow for setting the board address, enabling multiple boards to connect to the motherboard.
A reserved communication interface allows for motherboard control.
An onboard temperature module monitors ambient temperature in real time. An external temperature module is placed in the temperature monitoring position to monitor temperature and adjust fan speed. The
speed regulation uses an isolated design for enhanced stability and safety.
The single-sided component design facilitates soldering.

Design Files

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Update:2026-03-26 23:10:33

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