Hello thimios,
I think PCB for this protect is already shared by cbm08, if I am not mistaken.
Reg
Prasi
I thought that too but when I compared the schematics they are slightly different.
can someone recommend zeners for the fx100 amp? zy15 and zl12 appear to be obsolete. are 1n4744 and 1n4742 ok? thanks.
question for eagle users
hi all,
im leaning toward purchase of sprint-layout because of ease of creating iron transfer file. how easy is iron transfer in eagle? thanks.
hi all,
im leaning toward purchase of sprint-layout because of ease of creating iron transfer file. how easy is iron transfer in eagle? thanks.
Apex,
I reflowed all tracks and did some measurements and this is what i came with. i also replace bias resistor just in case it was defective but it was good. all this measurements are with no load, inputs shorted.
I reflowed all tracks and did some measurements and this is what i came with. i also replace bias resistor just in case it was defective but it was good. all this measurements are with no load, inputs shorted.
An externally hosted image should be here but it was not working when we last tested it.
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I inputted your rail voltages into my spice file and here are the voltages you should see.
the schematic i posted was from the first post but the placement on the PCB is correct. Replaced R20, R21 and Q11, same outcome. did diode test on q11 after removed and it seems good. I will apreciate all the help.
first remove the 104 cap and direct short the sgnd with psu gnd and then measure .if you make own pcb then pcb is faulty and if you made on thread pcb then any component and polarity issue.
