Your circuit is a type of "crowbar". The circuit is named afte the crowbar which is a large steel claw-like tool for breaking and prying things apart. And, in context, "dropping a crowbar across that power supply will certainly blow that fuse."I have these work instructions
View attachment 135079
View attachment 135080
I have that circuit. When I apply 10V to A1 and A3. My DMM reads 1.3V right away.
I think my circuit is already shorted somewhere but I don't know where to start.
If my fuse is out (F1), I should read 10V.
can someone sugguest some ideas to troubleshoot on why?
To turn it off, drop the gate voltage to ground AND remove stop current flow from anode to cathode."Also, SCRs are used in crowbars because they can handle a large amp load (to immediatly pop the fuse) and once they are turned on, they don't turn off until the supply voltage is cut (or the fuse pops).
So yes, the fuse is bad and I replaced it with a new one.
I am trying to find out if the SCRs are bad or not.
it was mentioned that if the SCRs are turned on, how do I turn it off?
I am not cleared on that
|Thread starter||Similar threads||Forum||Replies||Date|
|R||Can someone help me review this schematic? (AT89C52)||Microcontrollers||5|
|S||Could someone help my analyze this audio/bluetooth board?||General Electronics Chat||3|
|S||Would someone be willing to help a complete Newbie get started with Neural Networks?||Machine Learning, AI & Neural Networks||4|
|Can someone help me solve this one. Thanks!||Homework Help||6|
|Someone help about transformator||General Electronics Chat||86|
by Jake Hertz
by Luke James
by Kate Smith
by Jake Hertz