Ventilator PWM

balu balu na k-net.fr
Pondělí Říjen 14 09:35:37 CEST 2019


Zdravim osadenstvo,

mate niekto skusenosti ci sa daju otacky takehoto
https://www.tme.eu/sk/details/mf80251v1-a99-a/ventilatory-dc-12v/sunon/mf80251v1-1000u-a99/

ventilatora riadit PWM? Podla tohoto je vsetko v poriadku
https://www.analog.com/media/en/analog-dialogue/volume-38/number-1/articles/how-to-control-fan-speed.pdf

A 2-wire fan is controlled by adjusting either the dc voltage or pulse 
width in low-frequency PWM. However, with only two wires, a tach signal 
is not readily available. This means that there is no indication as to 
how fast the fan is running—or indeed, if it is running at all. This 
form of speed control is open-loop.

Su tam nejaki specialni diablici, na ktorych si treba dat pozor?

Dakujem,

b.


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