PWM explained
Posted: Wed Nov 05, 2008 6:06 pm
Hi guys, a newbie needs help
I'm trying to get my head around PWM. Pulse Width Modulation.
This is how I understand it, but I am obviously wrong as it just wouldn't work.
You have a square wave at say 1kHz and another at say 5 kHz. The pulse width has been modulated, true?
BUT, the duty cycle is still 50%
Aren't we ment to be changing duty cycle with PWM? Please can someone clear this up for me
Cheers,
Bazz
I'm trying to get my head around PWM. Pulse Width Modulation.
This is how I understand it, but I am obviously wrong as it just wouldn't work.
You have a square wave at say 1kHz and another at say 5 kHz. The pulse width has been modulated, true?
BUT, the duty cycle is still 50%
Aren't we ment to be changing duty cycle with PWM? Please can someone clear this up for me
Cheers,
Bazz