hi
does any body know how can made a low cost protection for boost converter short circuits?
does any body know how can made a low cost protection for boost converter short circuits?
The problem is that fuses need to be replaced, and that can be annoying and the cost can build up.How about using a fuse?
Tv safety became heavily regulated - the usual trick was a TO92 style thyristor like the 2N5061 etc which controls a shut down function. Current is simply a sub Ohm resistor in series with the output and the B/E junction catching ab excessive volt drop. you can do it better with a rail to rail input op amp, but design takes more effort.The problem is that fuses need to be replaced, and that can be annoying and the cost can build up.
i have a 12 to 120 volt with 300ma output current boost converter.This is a good video demonstrating how to make low-cost and efficient DIY short-circuit protection. However, more information would be useful. What voltage are you stepping up and to what? At how much current do you want to cut-off the power? What losses are acceptable? Please give more information.
by Jake Hertz
by Aaron Carman
by Jake Hertz
by Duane Benson