23 Sep
2010
23 Sep
'10
2:47 p.m.
On 2010 Sep 23, at 7:06 AM, Dave McGuire wrote:
A common use of 555s is as a PWM generator for large battery-powered
tools such as drills, power screwdrivers, and saws. These alone
account for quite a few 555s.
There was also one in my recently-replaced
dishwasher (built around
2000) that timed one of the cycles. I think this was one of the few
times I actually saw a 555 used as a "timer". ;)
OK, interesting to know. I often repair household stuff for friends but
I guess just as a matter of chance/coincidence haven't come across one
in newer stuff.
I designed 555s into a commercial product in 2002
and again in 2004.
I needed a ~455KHz carrier generator for an IR data transmitter, and
a 555 was the easiest way to do it.