Introduction (1)
Product name: USB fan speed control module
Product model: HW-602
Input voltage range: DC4~12V
Output voltage range: DC2.5~8V
Output power: 5W (do not overload)
Function description, suitable for common 5.0V USB fans on the market
Instructions for use: Plug the male end of the speed regulator into a mobile phone charger, power bank, computer USB, etc., then insert the fan plug into the female end of the speed regulator and you can use it.
Adjustment method: Knob adjustment (clockwise to increase, counterclockwise to decrease)
Product size: 50mm*18mm
Note:
When using the fan to adjust the fan in two gears, please put the fan in the first gear, otherwise the speed may not be adjusted.
Product features:
Strong and weak winds can be adjusted at will, the fan speed can be adjusted steplessly, and the wide voltage input is compatible with multiple power supplies. Various
Power input mode, can be connected to computer USB port, mobile phone charger, power bank.
Introduction (2)
This module is a speed-adjustable fan module designed based on the principle of high-frequency switching power supply. Its essence is to control the fan speed by adjusting the output voltage.
Generally, USB fans are powered by 5V directly to the fan motor, so the fan speed is fixed, which is inconvenient during use. The two-speed fan has an internal boost circuit. When it is turned to the second gear, the boost circuit After the USB 5V voltage is increased and then the motor is connected, the speed increases and the air volume becomes larger. Although it can be adjusted, there are only two gears, so it is still inconvenient to use. In response to the above problems, our company has designed this fan stepless speed regulation module. The input voltage of this module is DC 4~12V, the output voltage changes smoothly between 2.5V~8.0V, and the air volume can be set arbitrarily, with a wider range! And the adjustment is very convenient, just turn the potentiometer, clockwise to increase the air volume, counterclockwise to decrease the air volume, and the knob is ready for switch function.
