The Godfather talking
You may crack software. How about me?
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 91 
 on: January 02, 2019, 08:22:32 08:22 
Started by especialista - Last post by maiasj
Welcome.
Bem vindo.

 92 
 on: January 01, 2019, 05:07:17 17:07 
Started by thehelpdeskguy - Last post by LabVIEWguru
This member is invited by me. Registration isn't completed yet.


Note: This message sent by the system behalf of LabVIEWguru.

 93 
 on: January 01, 2019, 04:53:04 16:53 
Started by thehelpdeskguy - Last post by thehelpdeskguy
CountryUSA
NoteI am a Caltech graduate, with experience designing and building biotech instruments (one patented DNA sequencing device).

I am teaching Physical Computing (a course using SoC microcontrollers).  I would GREATLY appreciate an invitation to this forum.

Thank yyou.

 94 
 on: December 31, 2018, 02:59:23 14:59 
Started by especialista - Last post by especialista
what's the output power? Can we increase it and keep the profile as above?

Never measured, but I'd tell something around 3/4[W] at maximum.
It was not designed for "rock'n'roll". Just to amplify small signals to a small acoustic box.



 95 
 on: December 31, 2018, 11:41:31 11:41 
Started by especialista - Last post by metal
what's the output power? Can we increase it and keep the profile as above?

 96 
 on: December 31, 2018, 08:43:30 08:43 
Started by especialista - Last post by PM3295
If you use global feedback instead of local feedback, you should be able to get rid of the large electrolytics, improve LF response and reduce the THD% figure by a factor of about 20.

 97 
 on: December 31, 2018, 07:19:21 07:19 
Started by towlerg - Last post by towlerg
Deleted

 98 
 on: December 30, 2018, 05:36:13 17:36 
Started by mauro19 - Last post by pickit2
CountryColombia
NoteHi!
I like to program micro-controllers and work with embedded systems. Lately I work integrating those to higher systems, like databases interfacing them with nice protocols like CoAP and Mosquito.
I guess I can exchange info about the tools I use. I want to keep an eye on what's current.
I have a mixed set of personal and work projects.
Hope to see you soon guys...
Thank you.
Guess What - your account is on Mute:

 99 
 on: December 30, 2018, 10:19:00 10:19 
Started by especialista - Last post by especialista
I call it my "Little Old Chernobyl".

It's a linear power supply, capable of 13-15[V] adjustable output, via R8, with protections to overcurrent and overvoltage.

It also adds a small 5[V] power supply to feed my PIC projects.

Output block is based on Power MOSFETs. Due to their nature, you'll need a transformer with at least 25[VDC] retified output voltage.

In this schematic, transformer is simulated using a battery and rectifier bridge is not shown. Fuse can be replaced by a circuit breaker.

Additional Zobel Network in power block is to avoid any kind of RF noise.

SCR1 is not on PCB. It's tied directly to the output connectors of the power supply.

My transformer is a taylor made one, 0+30[V] / 35[A]. This power supply is running smoothly for 5 years in my workbench and never disapointed me.

I've designed this PS to feed up all my HamRadios at once. I simply don't trust switched power supplies (PS: And just found here another reason to keep not trusting!  Shocked).

Schematic:


PCB


Mounting 3D



 100 
 on: December 30, 2018, 02:34:32 02:34 
Started by Manuel - Last post by bobcat1
Dear all members

Happy New 2019.

Hop sonsivri keep the good work  this year  as well !!!

All the best

Bobi

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