On battery-powered power tools, is the "electronic brake" feature simply a short-circuit of the p.m. motor when the speed-control trigger is released? Or is there some other, fancier braking juju being applied?
Thanks,
-- DaveC me@privacy.net This is an invalid return address Please reply in the news group
On every powered drill I've seen (including battery-powered), the brake is mechanical -- when one lets go of the trigger, the spring allows a plate physically connected to that trigger to press against the cam of the motor. But you may be talking about something completely different here.
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a
released?
Hmmm, at what year did your experience start ? From mine I have yet to see a mechanical brake on a powered drill, but then I have not pulled a modern one down (ie after about 1995. Would it also be a place of origin issue since each country has it's own standards ??
-- Regards ........... Rheilly Phoull
On Thu, 15 Jul 2004 04:46:47 -0700, Rheilly Phoull wrote (in article ):
What kind of brake *have* you seen on drills? Do they use motor short-circuit for "electronic braking"?
-- Please, no Google links. I wouldn't ask a question here if I hadn't done that already. DaveC me@privacy.net This is an invalid return address Please reply in the news group
Consumer-grade drills rarely have mechanical brakes; pro-grade drills typically do.
-- John Miller Boy, that crayon sure did hurt!
released?
Pretty much. My cheapo gets what looks like a 10ohm resistor put across the motor.
a
released?
The decent quality cordless drills I've seen do exactly that, generally it's a low ohm resistor.
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