But I am an engineer, and feel compelled to find a hard way to do simple things. It's what we do.
wannabefree wrote:Yep, and that is a good, simple way to do it, it will always work, and will not make noise. But I am an engineer, and feel compelled to find a hard way to do simple things. It's what we do. Nobody would need us otherwise.![]()
Oh, and I want to save that 10 watts or so those resistors convert to heat. But if you don't care, by all means this is the best way to go.
Evidently, it does something more sophisticated than throwing away the energy into a resistor. (Which would then run the battery down in a few hours even on the lower modes.)
tony.latham wrote:Evidently, it does something more sophisticated than throwing away the energy into a resistor. (Which would then run the battery down in a few hours even on the lower modes.)
I was concerned with this and did an amp test on the mod before and after.
1- .86 / 1.25
2- .11 / 1.7
3- 1.3 / 2.5
The 1, 2, 3, are the fan speeds. The first column is after the resistor and the second is without. Don't ask me to explain how it works, because I'm not Nikola Tesla. It's pure f* magic as far as I'm concerned.
Tony
So at those speeds, there is still quite a drain on the battery. (Is the number for 2 correct?)
Also, we must have different fan models.
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