Welding smoke purifier

Welding Fume Purifier

An electronic communication group: 232586710, 345731137.

• The fan uses a 6038 violent fan (four-wire with PWM speed regulation function).
• The power supply interface uses a DC interface and a TYPE-C interface (power supply voltage 12V).
• Among them, the TYPE-C interface input uses a PD deception chip, and the deception voltage is 12V to power the entire circuit.
• A 5V linear regulator provides a 5V voltage source, and the potential of 0~5V is adjusted to the GP9101 through a potentiometer.
• This allows GP9101 to output a PWM signal with a duty cycle of 0%~100% to adjust the fan speed.
• The shell is 3D printed, please see the attachment for related model files.

• Links to purchase some components (use your mouse to click on the blue text below)
• RK097 potentiometer
• KF2510 fan terminal block
• Illuminated power switch （any self-locking switch with a diameter of 16mm is acceptable）
• GP9101 voltage to PWM chip   （the specific model is GP9101-F20K-L2H1, also available at LC Mall）

Change Log

Updated to version V1.2 on June 17, 2023.

The deception chip is changed from FS312HC to HUSB238.

Added PWM signal phase selection pad to solve the problem of some fans turning the potentiometer clockwise to reduce the air volume.

Add an external exhaust adapter ring with a diameter of 50mm, which can be adapted to an exhaust pipe with an inner diameter of 50mm. The harmful gases can be completely discharged to the outdoors through the exhaust pipe.

===Warning===

The BOM list is subject to the one in the schematic diagram! Please do not use the BOM list directly from the project introduction!

The BOM list is subject to the one in the schematic diagram! Please do not use the BOM list directly from the project introduction!

The BOM list is subject to the one in the schematic diagram! Please do not use the BOM list directly from the project introduction!

Use activated carbon filter cotton (you need to cut it to the appropriate size yourself)