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most 5 volt regulators have internal voltage protection , current protection & trhermal overload protection. . i know first year aprentice who could shoot you down in flames . don't keep trying to justify yourself with this mod as you are looking like a fool.
I am not sure if this was aimed at me but I shall answer it anyway.
You have just proved yourself to be completely ignorant as to how anything electrical works.
Before you start spouting your bullshit. If you really do believe that a 5volt regulator has its own built in overload protection that will do enough to save the device then you really are making a fool of yourselfand you have just looked up the data sheet in google. You do not know how these behave in practice. Buy some and short circuit one in circuit and see how its protection works. Draw 5 amps through one and see how good it runs when its nearly melting believe me it will fail.. I repair power supplys with mass destruction of components yet the fuse which is supposed to protect the PSU is sat there perfectly fine. If you believe as gospel everything you read on a piece of paper the fuse would have gone. Yes I ahve looked at the circuit diagram... hmm should work like it says but it doesn't. You have no real world experience of working on this sort of thing as you would realise jsut how components behave in everyday use and what happens under stress conditions
If thats the case then none of these devices would ever fail, hell we could build in protection circuits straight into every device , no need to worry about building circuits specially for overload protection in to electronics stuff. You really are out of your depth here. Do you actually know my qualifications, do you know what job I have done from the age of 16 to 42, obviously not. Do you work on electronic equipment repairing it day in day out NO
Do you see the amount of 5v regulators (the ones with your cocked up built in protection) I have to replace in a week NO
If you want to pit your electronics knowledge against mine then go ahead. I won't need Google to back me up.
I was asked to be a mod I didn't volunteer and the people here are not my guests,I am just a member of this forum like anyone else and what has that to do with anything any way. If you have a complaint about me then you need to inform a Head Mod or one of the Admin I never censor anyones opinion and as you have spouted yours I can spout mine.
Anyway tell me what would happen (I will make this a real easy device for you find on search engines) if a BU508A designed for a maximum current of 8 amps was passing say 10 Amps due to an increase in the drive frequency to the base. Oh and these have supposed protection inbuilt as well. (My workshops bins are full them) If you are stuck I will give you the multiple choice questions next.
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all the measurements , & theorys are based on a chip that you don't have the specs on& don't know the internal characteristics of that particular i.c.
You obviously can not read either from what you said above read this
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data sheet of the CPLD says don't ground out more the 50ma with a single pal block of this chip when we are clearly grounding out 72ma.
EDIT
I thought you wanted this thread to die looking back at it.
