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Simplistic Mosfet HV Shunt Regs
Simplistic Mosfet HV Shunt Regs
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Old 25th November 2012, 04:14 PM   #3531
king4joy is offline king4joy  Hong Kong
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Quote:
Originally Posted by Salas View Post
OK, we cross posted. Those numbers SSLV1.1 can do with IRF9530 at CCS position also as it has on output already. And its better spec than the the BJT special one for 1.5V-2.5V I designed for disco once. You set it at 1.5A and Bob's your uncle.
Could you take the posts where I can get more info please??

Is the SSLV1.1 like SSHV2 with 4 wires output??
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Old 25th November 2012, 04:17 PM   #3532
king4joy is offline king4joy  Hong Kong
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Could you take me to the posts where I can get more info please??
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Old 25th November 2012, 04:18 PM   #3533
Salas is offline Salas  Greece
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Simplistic Mosfet HV Shunt Regs
Has 4 wires too. Go see it in SSLV1.1 builds and fairy tales thread.
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Old 27th November 2012, 07:29 PM   #3534
Milos P. is offline Milos P.  Serbia
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any subs for the sk117gr?
cheers
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Old 27th November 2012, 07:32 PM   #3535
Salas is offline Salas  Greece
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Simplistic Mosfet HV Shunt Regs
BF245A low idss samples 3 mA to 4mA. Not same mS, and acceptable for noise. Bit more negative drift maybe, depends on make.
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Old 27th November 2012, 07:35 PM   #3536
Milos P. is offline Milos P.  Serbia
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thank you.
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Old 27th November 2012, 08:02 PM   #3537
Milos P. is offline Milos P.  Serbia
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hmm... 2N5457?
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Old 28th November 2012, 09:28 PM   #3538
mkollmaier is offline mkollmaier  Germany
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Default SSHV2 low voltage output

If i want output voltage around 140V should resistors R8, R9, R10 be lowered in value? If yes, what values should i choose. Thanks to all in advance.

Markus
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Old 29th November 2012, 02:47 AM   #3539
king4joy is offline king4joy  Hong Kong
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Quote:
Originally Posted by Salas View Post
OK, we cross posted. Those numbers SSLV1.1 can do with IRF9530 at CCS position also as it has on output already. And its better spec than the the BJT special one for 1.5V-2.5V I designed for disco once. You set it at 1.5A and Bob's your uncle.
I am still reading the Salas SSLV1.1 BIB boards guide (DocRev2)

For my application, 6.5-7.0 V at 1.5A (plus safty margin), do I use IRF9530 for Q101 and Q106??

What about the voltage reference area, what should I do??

What would be the best transformer to use if I do not want to have a too big heat sink??

Thankyou Bob....my uncle
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Old 30th November 2012, 02:06 PM   #3540
rickmcinnis is offline rickmcinnis  United States
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Default Can one use 4 regulators with a common ground?

I am building four of the regulators to power a Broskie Aikido phono board using TEA BAGS pcbs (thanks again, TB)

It is basically four of the AIKIDO circuits on one board.

I am using four since I have ECC99's in the cathode follower position and these seem to require more than average current so I figured why not use four?

It is simple to connect the positives to the individual "modules" and they are isolated but PCB surgery (not that I am afraid of this) is required to isolate the individual grounds. The question is: is it necessary?

My instinct is that it is but I thought I would ask before starting the procedure.

Help is appreciated and my apologies for not knowing the answer to this myself.

THANKS!
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