PWM controller, which 'dims' the output by means of PWM (pulse width modulation). With the button the duty cycle can be set between 5% and 100%, whereby the speed of an engine, fan or the power of a lamp can be limited.
QReneI thought most 4-pin PWM fans can tolerate a maximum of 3.3-5V on the designated pin. However, I rarely see 5V PWM controllers, is it suitable for this application?Answer this question
QHennyI have a 4pin PWM computer fan. I already know I don't need to use the feedback pin. On the controller, the power+ and power- connectors are completely clear: just + and - of the power supply. The motor connector on the controller also seems clear to me: it goes to the - of the 4pin. (I think). But the motor+ on the controller is no longer so clear: does it go to the + of the 4pin? And then PWM of the 4pin; what does it connect to? Why wouldn't there be a 4pin connector on this controller? Then this question would not need to be asked.Answer this question
QArieI see a min and a max voltage, is that the input voltage? and what is the min max output voltage?ViewHide 1 answer | Answer this question
AOpencircuitThe output voltage is equal to the input voltage, this module only modulates the signal into a PWM signal.
QErikI have a 4-pin computer fan (Intel), can I use this to adjust the speed again? How should the pins be connected?ViewHide 1 answer | Answer this question
AOpencircuitThe 4th PIN of a fan is feedback, it does not need to be connected. The + and - is clear, and the output of this module can be connected to the PWM pin.
QHenk KolijnWhat is the working frequency of this PWM Module 15A 400W?Answer this question