张三叔

Mao_12V fan control board

Overview

Copy Ban and Laowang Clearance 2 String Lithium Battery Charging Board for 0.9 Yuan

The original board was too long and could not be fixed to the cat's shelf, so it was copied and modified.

It can be perfectly paired with Laowang's 2.5 yuan vortex fan.

Voltage controls the speed, and the voltage range is 5-15.5V.

Almost all components can be moved from the original board, and the voltage configuration resistors R9/R10 are modified. On this basis, an external 10K adjustable resistor can be connected.

Of course the best is the 10K potentiometer with integrated switch, such as WH138.

3D preview:

Design Files

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Update:2025-06-22 19:28:19

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