On Wed, Mar 14, 2018 at 01:28 pm, Jerry Gaffke wrote:
Had never heard of Drok, they have lots of stuff up on Amazon.
Does your Drok allow you to set the max current anywhere from 0 Amps to say 5 Amps?
Sorely needed.
Lots of cheap switchers out there now, but none of them seem to deal properly with current limiting.
Should be able to set both the regulated voltage and the max current.
If the load sucks too much current, the voltage drops until the current comes within the set limit.
Any of those switchers could do this for the price of an op-amp and a pot, maybe an extra $1.
Jerry, KE7ER
?
On Wed, Mar 14, 2018 at 12:47 pm, Walter wrote:
A little more expensive model put out by droke even has a current limiting feature.
Well, I had not thought about the current limit.
I installed one for the PA voltage that does not have the current limit feature.? I will change it out to the current limit model and use the voltage only for the board supply.
Now I just need to figure out how to adjust the current limit.? I think a resister network to draw current while I adjust it to the desired current level.? That would be a great safety feature.
Anyone have an idea about what the max safe current for the PA buss would be??
--
73, W9KJO
Walter
