3 ms·
I wasn't aware that "plenty" of supplies lack bleeder resistors - and ouch, I didn't consider the case where the unit might be damaged, thanks. Considering the
by i336_ 10y ago
I wasn't aware that "plenty" of supplies lack bleeder resistors - and ouch, I didn't consider the case where the unit might be damaged, thanks.
Considering the level of energy stored in the average PSU cap, if I use a decent 5W or 10W resistor, should I hold it in a pair of pliers so I don't get burnt? (I'm guessing I'd definitely need to do that if I use a tiny 1W or 2W.) Also, as someone whose knowledge of electronics is very poor - is a resistor the best thing to use in this instance?
And it makes a lot of sense to put bleed resistors on open cage CRTs - those types of units are unlikely to frequently power down/back up, so completely discharging the unit isn't an issue. Design win!
I've heard stories about service techs getting bitten by the 70kV HV while testing tubes that were powered up for testing...