Simplistic Mosfet HV Shunt Regs - Page 303 - diyAudio
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Old 20th May 2012, 12:21 PM   #3021
Salas is offline Salas  Greece
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Talking SSHV2?
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Old 20th May 2012, 12:28 PM   #3022
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Yes, latest design.
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Old 20th May 2012, 12:36 PM   #3023
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The voltage drop over the SSHV2 reg only affects the on-board sink. If it ain't overheating, no worries.
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Old 20th May 2012, 02:02 PM   #3024
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What is the range of voltage at the input to the regulator for the full range of mains electricity supply voltages?
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Old 20th May 2012, 02:20 PM   #3025
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10V in-out drop is good for the CCS and 20V is recommended so to ensure the 10V bottom level for somewhat varying mains during the day or from place to place average. Anymore than 20V is no problem as long as its not producing much heat along the CCS setting in mA.
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Old 20th May 2012, 02:25 PM   #3026
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Increasing Vin - Vout, doesn' t increase heat on the 840 too?
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Old 20th May 2012, 02:30 PM   #3027
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No. Spare current times Vo does.
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Old 20th May 2012, 02:33 PM   #3028
vgeorge is offline vgeorge  Greece
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Thanks for the clarification!
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Old 21st May 2012, 03:00 AM   #3029
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Default SSHV1

Salas,

The voltage on my SSHV1 is drifting lately. The supply voltage is 217v. It starts at about 100v at the output then slowing drifts the way up to around 145v ( this is my desire voltage for the 26 B+ ) then drifting up and down. I have tried changing the 350, 840 and even all 4 12v zeners with no avail. Will it be the problem on the 9610 / or the 170 ??

Albert
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Old 21st May 2012, 05:51 AM   #3030
regal is offline regal  United States
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Quote:
Originally Posted by albertli View Post
Salas,

The voltage on my SSHV1 is drifting lately. The supply voltage is 217v. It starts at about 100v at the output then slowing drifts the way up to around 145v ( this is my desire voltage for the 26 B+ ) then drifting up and down. I have tried changing the 350, 840 and even all 4 12v zeners with no avail. Will it be the problem on the 9610 / or the 170 ??

Albert
try replacing the mpsa92
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