Simplistic Mosfet HV Shunt Regs - Page 259 - diyAudio
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Old 23rd January 2012, 08:22 AM   #2581
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No smoke, no smell as yet.....

Do you know if there is a GB for SSHV2 board or not yet??
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Old 23rd January 2012, 08:38 AM   #2582
vgeorge is online now vgeorge  Greece
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Not yet.
Tea-bag will let us know when he is ready.
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Old 23rd January 2012, 08:41 AM   #2583
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ok...do I have to take the semi out to check them?? I made a mistake to use a double sided board....i is noteasy to remove the parts!!! and also I do not know how to check the semi....I may need to do a search....
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Old 23rd January 2012, 08:59 AM   #2584
vgeorge is online now vgeorge  Greece
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Check Vbe on the transistors and Vgs on the fets without removing them.
Check voltage ob R5.
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Old 23rd January 2012, 09:04 AM   #2585
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thankyou.....I may be able to do this tomorrow....
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Old 23rd January 2012, 05:44 PM   #2586
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Quote:
Originally Posted by vgeorge View Post
Not yet.
Tea-bag will let us know when he is ready.
I am almost always ready

Salas holds the decision on when to do GB.
I think we are confident the stuff all works good and whatnot.
So A quick build guide or explanation of Do's and Dont's and GB Thread would need to start things off.

It usually takes a couple of month's for interest to peak in order to get enough boards to make them affordable.

I am just the operations dude.
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Old 23rd January 2012, 05:50 PM   #2587
vgeorge is online now vgeorge  Greece
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Quote:
Originally Posted by king4joy View Post
thankyou.....I may be able to do this tomorrow....
Don't forget to check led polarity also.
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Old 23rd January 2012, 06:11 PM   #2588
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Quote:
I am just the operations dude.
Gave me a good laugh... (not at you but 'bout the expression ).
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Old 23rd January 2012, 06:47 PM   #2589
Salas is online now Salas  Greece
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Guys, its great that the SSHV2 PCB protos run fine on inductive loads with very positive subjective comments from SSHV1 users. We also saw matrix boards working, and one completely different on self made pcb and layout from dadedady working fine again on a resistive preamp tube load. High voltage parallel regulators will always be expected to meet loads or input cabling/transients that they will fail upon non the less.
I will write a small guide and give GB green light in the near future since many here asked, I promise. As soon as I will finish a couple of things I am doing right now. Thanking all of you for taking part in evaluation!!!
It will still carry the disclaimers, of ''quit if it ain't working on your application when assembled OK itself'', and ''Don't mess with high voltage if you haven't done enough such stuff already and knowing precautions, grave injury or death danger is involved!''.
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Old 23rd January 2012, 07:34 PM   #2590
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Salas,
I have my two SSHV2 boards made and wanted to make sure that the only fets that need sinking are the 2 - dn2540 and the 840? Is the dissipation of these devices the voltage dropped across them times the current, correct, not the voltage seen by the drain times the current? Just being careful so I don't make fireworks!
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