Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Simplistic Mosfet HV Shunt Regs
Simplistic Mosfet HV Shunt Regs
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old Today, 11:15 AM   #6121
Salas is offline Salas  Greece
diyAudio Chief Moderator
 
Salas's Avatar
 
Join Date: Oct 2002
Location: Athens-Greece
Simplistic Mosfet HV Shunt Regs
Quote:
Originally Posted by morpheous View Post
Here's my SSHV2
Sink in sink? First time I see Russian doll sink Does it have thermal paste between sinks? Needs it.
  Reply With Quote
Old Today, 11:21 AM   #6122
Salas is offline Salas  Greece
diyAudio Chief Moderator
 
Salas's Avatar
 
Join Date: Oct 2002
Location: Athens-Greece
Simplistic Mosfet HV Shunt Regs
Quote:
Originally Posted by euro21 View Post
This type preamps need ca. 15-20mA / channel, so with 25-30mA shunt current the power supply load is ca. 50mA /channel.

One SSHV2 (90-100mA) is also OK for both channels.

Lite Audio suggest 7815 and 7806 (7805 and and one diode from reference pin to ground) stab. for heaters.

http://www.lite8.com/product.php?action=723
I suggest he should measure a channel's rail consumption via voltage drop across 1 Ohm series resistor between SSHV2 and B+ input. Knowing exactly where to set CCS in his case is saving precious voltage drop in his rectification section.
  Reply With Quote
Old Today, 01:22 PM   #6123
morpheous is offline morpheous  Italy
diyAudio Member
 
morpheous's Avatar
 
Join Date: Oct 2005
Location: Cagliari
Send a message via Yahoo to morpheous
I know it's exaggerated, the pasta served me to facilitate the assembly.
  Reply With Quote
Old Today, 01:24 PM   #6124
morpheous is offline morpheous  Italy
diyAudio Member
 
morpheous's Avatar
 
Join Date: Oct 2005
Location: Cagliari
Send a message via Yahoo to morpheous
I will also test with the L-adapter. What should I use for the turntable to replace that 16V power supply?
  Reply With Quote
Old Today, 02:16 PM   #6125
Salas is offline Salas  Greece
diyAudio Chief Moderator
 
Salas's Avatar
 
Join Date: Oct 2002
Location: Athens-Greece
Simplistic Mosfet HV Shunt Regs
That's AC/AC adapter. Don't feed DC to the turntable. It has 90deg op-amp low voltage synchronous motor drive generators inside on a pcb. Some tables have DC motors but not this one. That board rectifies and filters the incoming 16V AC for its own use. Bigger better 16V AC transformer maybe, but I don't know if of any benefit.
  Reply With Quote
Old Today, 03:15 PM   #6126
morpheous is offline morpheous  Italy
diyAudio Member
 
morpheous's Avatar
 
Join Date: Oct 2005
Location: Cagliari
Send a message via Yahoo to morpheous
True, I only realized it now AC / AC Adapter.
As soon as I can I finish mounting pre-amp and do the tests, I'll let you know.
In any case, you say will it be the case to buy a better transformer for this pre?
  Reply With Quote
Old Today, 03:23 PM   #6127
Salas is offline Salas  Greece
diyAudio Chief Moderator
 
Salas's Avatar
 
Join Date: Oct 2002
Location: Athens-Greece
Simplistic Mosfet HV Shunt Regs
Not sure, it may play very well even with less than 260V. Tubes have tolerance range.
  Reply With Quote

Reply


Simplistic Mosfet HV Shunt RegsHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Regs - Shunt vs Series richie00boy Solid State 59 17th June 2017 03:59 PM


New To Site? Need Help?

All times are GMT. The time now is 10:53 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Copyright ©1999-2020 diyAudio
Wiki