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Fan controller

Overview

The GP9101-F20K-L2H1-SW is used as the ADC chip to output PWM control for a four-wire computer fan. A diode is added to prevent excessive current from being generated when the fan is turned off. A bracket is designed to work with a variant of the Noctua fan's open-source fan shroud, suitable for office desktop fans. The PWM signal pins have select pads; pin 1 connected to pin P reduces airflow when the potentiometer is rotated in the off direction, while pin 2 connected to pin P does the opposite. Bracket adapter
download address: https://makerworld.com.cn/zh/models/195395#profileId-122615
Fan shroud download address: https://www.printables.com/model/896133-nv-aa1-12-airflow-amplifier-trunnion-mount The fan shroud must be the version with a fixed lug distance of 135!
Fan cover: https://makerworld.com.cn/zh/models/171909#profileId-123350
The ph2.0 socket is not needed.

PDF_Fan Controller.zip

Altium_fan_controller.zip

PADS_FanController.zip

BOM_Fan Controller.xlsx

93980

18650 battery module based on TP5400 capable of simultaneous charging and discharging with 5V output.

Based on the TP5400, this 18650 battery module features simultaneous charging and discharging with 5V output and IP3005A over-discharge protection.

The TP5400-based 18650 battery module features
IP3005A over-discharge protection, shutting off when the voltage is below 3V
and outputting 5V when the battery voltage is above 3V.

It has already been used in the AbenFan Pro project.

PDF_TP5400-based 18650 battery module with simultaneous charging and discharging 5V output.zip

Altium_TP5400-based 18650 battery module with simultaneous charging and discharging 5V output.zip

PADS 18650 Battery Module Based on TP5400 with Simultaneous Charging and Discharging 5V Output.zip

BOM_TP5400-based 18650 battery module with simultaneous charging and discharging 5V output.xlsx

93981

electronic

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Update:2026-03-28 23:37:38

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