Pulse-Width Modulation

251

05:29:09

Pulse-width Modulation is a form of output in which a source is switched on and off for a time in a fixed period. PWM is used to achieve an output similar to that of an analog output. One such example is the Arduino board. To have a dim LED, the Arduino switches its output on and off for a duty cycle over (I believe) 2 ms. This switches so fast it appears to the human eye as a dim LED.

published 8 years ago

BillyT

8 years ago

Your description is accurate, but your example is not what you have described. Your example is closer to a pulse generator (fixed pulse, both in amplitude and period and width). http://everycircuit.com/circuit/5327819299356672

2ctiby

8 years ago

Here is my PWM description which may hopefully help some users http://everycircuit.com/circuit/4993079421698048

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