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Simplistic Mosfet HV Shunt Regs
Simplistic Mosfet HV Shunt Regs
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Old 24th June 2018, 06:54 PM   #5871
poty is offline poty  Russian Federation
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Originally Posted by anystereo View Post
I would do the PSUD2, but i don't know the open load numbers for either of these and I will end up with wishful thinking.
PSUD allows to enter the ohmic resistances of windings to count the open load numbers. The resistances can be measured or obtained from manufacturers' web sites (Hammond has them definitely).
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Old 13th July 2018, 06:54 PM   #5872
Tfan69 is offline Tfan69  Italy
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HI! possibly this has been answered dozens of times.. so forgive me but this thread is gigantic!
A ready available 2sk117 alternative from common industrial suppliers like farnell, digikey etc?
Thanks
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Old 13th July 2018, 08:13 PM   #5873
Salas is offline Salas  Greece
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Simplistic Mosfet HV Shunt Regs
2SK880GRTE85LF

Its SMD you need a SOT-23 adapter mini board to make it through hole
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Old 15th July 2018, 10:51 AM   #5874
Tfan69 is offline Tfan69  Italy
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thanks!
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Old 20th July 2018, 11:58 AM   #5875
savu is offline savu  Ireland
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Hi Salas,

I have designed a PCB and built SSHV2 and I have a problem with it. I can't properly change the output voltage from R11 due to D3.
If I eliminate D3, everything is all good.
I have read as much as this this thread as my time allows and I found out about the schottky MBR1100.
I don't have this on hand... can I use any schottky rated at 100Vdc minimum and 2A?

Attached some pictures of my build.

Best regards,
Silviu
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Old Yesterday, 04:27 PM   #5876
poty is offline poty  Russian Federation
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Have you checked the D3? Have you solder it in the right direction (anode-cathode)?
You can use any power diode here. I'd use 5A or more though.
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