Eric:
Oh that's great. But any reason why the current is now limited to 0.75 amps? Before it was 1.5 amps.
tmtech:
It's nice to know you tested these that much. I ran one hot a few years ago but never measured the case temperature. It always worked well though. I used it for simply regulating and adjusting the fan speed of a small DC fan.
Interesting article too, and they even mention Bob Pease and the LM337.
The two circuits for 555 timers show VR1 that feeds the discharge pin, can be adjusted down to 10ohms. With a 12V supply that would almost certainly pop the internal pull-down transistor for that pin.
The two circuits for 555 timers show VR1 that feeds the discharge pin, can be adjusted down to 10ohms. With a 12V supply that would almost certainly pop the internal pull-down transistor for that pin.
You don't seem to have a resistive voltage divider calc?
Ie; you input Vin and desired Vout and it tells what two value resistors are needed. It's a simple task for many, but is the kind of thing that newbies stumble with.
Also there are TWO versions there of LM317 calculators!
And using an LM317 as a current regulator is very common, even though it's just one resistor that sets the current limit maybe thats worth doing as a calc.
I really like what you have done with the LM317 calculator. From practical use and reading temps etc. over Three years, I reckon you are bang on target .
(3915 tool) Not being picky, but there's still two more. Noobs might get confused. Watts box, top half & PS volts, second half. BTW, I occasionally come back to Earth, right about when my beer is gone! And thanks for the cool tools!<ckd>
hi,
I would appreciate any positive feedback and suggestions for this new tool.
Its purpose is to give students an insight into what the effect of changing component/parameter values will have on a 'general purpose' voltage regulator circuit.