Quote:
Originally posted by Al Skierkiewicz
I kind of like the water wheel analogy and it could lend itself to PWM discussion very easily.
Good thing I don't fit your "non engineer" requirement, Kevin, I have my own drawer full of stuff.
|
Hi Al,
Yeah, the water wheel has great possibilities. Okay, maybe another hint? Suppose we take that same water wheel, but all we have to drive it is a very high pressure (which is analogous to high voltage in a circuit) fire hose that has a fast valve at the nozzle. Given the above, how do we get a continuously variable angular velocity to do our work? Explain how it works too.
Maybe you can throw in some of your desk cruft to sweeten the pot
. Okay, like I said above, I'll throw in one of the cheezy items found
here for a really good explanation of PWM using the above example or one of your own choosing.
-Kevin