Yep, the standard tempco of an ordinary rectifier is negative! Geesh. However, there are exceptions, such as zeners, which have a positive tempco, and 6.2V LVAs which have zero tempco, etc. I'm reall
I'm not sure what this is all about, but the Semtech diode string used 3A diodes internally, having Vf = 1V/cell @ 3A and about .8V/cell at 1A, so there were a variety made using different qtys of ce
Hi Marv, The Semtech rectifiers have higher than the usual ".6V" Vf, by design, because they use what's called a suprataxial junction structure made like a sandwich, using two slices if silicon per d
//What "reduced voltage" are you talking about? I'd like to hear more about operating AC fans on reduced voltage, I was never successful doing this. (I do operate DC brushless fans on "reduced volta
[Steve Katz] I realize that this works to some extent; however, I have been unsuccessful in quantifying actual results because the AC motors run on reduced voltage have a great reduction in torque a
[Steve Katz] The program allows you to enter all data relating to the product's environment. This is especially important for us, since we design and manufacture mostly "rack mount" equipment (19" p
[Steve Katz] Thanks. But what I do is use thermally sensitive indicating strips installed on the critical components to see if I'm really making any difference or not. Those are very inexpensive and
[Steve Katz] They'll all be uA or mA meters, unless there's already a shunt or multiplier resistor inside the meter case. I use a VOM, start with a high resistance range and dial it down to lower ra