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Laptop display - Could PWM be replaced with a potensiometer?

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saavedra29

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Hello. Every laptop screen's brightness is controlled by PWM which to others causes flickering problems and to others an annoying buzzing sound (in my case the latter). If i don't care about modifying my laptop could i disconnect the PWM and power my screen from the main laptop power with the use of a potentiometer?
 

Hi,

yes. You may use a high power pot.
Like this.
powerPot.jpg
Maybe smaller, maybe bigger.
It depends on voltages and currents...

Klaus
 

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