GB for DC coupled B1 buffer with shunt PSUs - Page 11

Salas · 10th July 2009, 06:45 PM

Quote:

Originally posted by xaudiox
ygpm salas.. thanks

I sent em 2u.

Salas · 10th July 2009, 06:53 PM

Quote:

Originally posted by samoloko
Is It possible to redraw the layout so the backs of the mosfets are outside - that would make complete shunt reg and B1 - so there will be more Interest

There is a reason he put the Mosfets that way. To keep the gate stoppers at minimum distance. That circuit is LED fix V referenced and optimized for that current range. From there you are on your own. It is not meant by me for general scalable regulator use. There is a dedicated regulator thread with discussion and recommended board that can be configured for positive or negative.

massimo · 10th July 2009, 07:40 PM

Quote:

Originally posted by xaudiox
i can try redo the layout in protel.. i'm also thinking if we can have the board with scoring line in between the b1 and the regulator.. so anyone can use the regulator by itself.

Protel: very professional! Scoring: good idea Maybe panelize two pcb with scoring line. Nearly everybody is asking for 2 pcs at least.

Quote:

Originally posted by samoloko
Is It possible to redraw the layout so the backs of the mosfets are outside - that would make complete shunt reg and B1 - so there will be more Interest

Yes, nice, but in this way you have symmetrical tracks

Quote:

Originally posted by Ryssen

Sounds fine,can you make 2 more mounting holes for the PSU?

Mandatory!

More ideas:
> Reduce a bit the size of the 2 caps in // to the led strings and keep 'emt close to the leds. It's only a 100 uF/16V elcap!
> Don't use too many hole diameters: 0.8 mm for resistors, leds, caps and TO92 devices, 1 mm for Mosfets, AC connector, diodes and mounting holes. Too many different diameters make the pcb more expensive, while it's quite easy to enlarge holes in a single sided pcb (without metallized holes)

MashBill · 10th July 2009, 08:49 PM

Please change my order from 1 to 2 boards.

Thanks!
Bill

back · 10th July 2009, 09:50 PM

i would like 4 boards please.

mekanoplastik · 10th July 2009, 11:44 PM

i would like 2 boards...thank you!!

Ryssen · 11th July 2009, 01:18 AM

123 boards..

jimmyd53 · 11th July 2009, 01:34 AM

I am in for two boards. Thanks for the great work. James

ernesternest · 11th July 2009, 02:01 PM

Hi,

I'd like to be in for 2 boards. Thank you.

Ernst

HDGR · 11th July 2009, 02:19 PM

I would like 2 boards please.

11th July 2009, 01:18 AM	#107
Ryssen diyAudio Member Join Date: Dec 2003 Location: Sweden--> Here	123 boards.. __________________ Regards Åke

11th July 2009, 02:01 PM	#109
ernesternest diyAudio Member Join Date: Oct 2007 Location: Cologne	B1 plus shunt boards Hi, I'd like to be in for 2 boards. Thank you. Ernst

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	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

10th July 2009, 08:49 PM	#104
MashBill diyAudio Member Join Date: Jun 2004 Location: Kansas, USA	Please change my order from 1 to 2 boards. Thanks! Bill

10th July 2009, 09:50 PM	#105
back diyAudio Member Join Date: Nov 2005 Location: crete	i would like 4 boards please.

10th July 2009, 11:44 PM	#106
mekanoplastik diyAudio Member Join Date: Nov 2002 Location: MAD-ES	i would like 2 boards...thank you!!

11th July 2009, 01:34 AM	#108
jimmyd53 diyAudio Member Join Date: Jan 2006 Location: EUGENE, OREGON	I am in for two boards. Thanks for the great work. James

11th July 2009, 02:19 PM	#110
HDGR diyAudio Member Join Date: Jun 2004 Location: Athens	I would like 2 boards please.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)