stamps and SCR''s
Archiver
Posts: 46,084
QT 3011 - 10mA max. The stamp is rated 20mA source and 25mA sinking,
per pin, is it not?
My big victory will be when I can do phase angle firing control of
back-to-back SCR's with stamp output.
Chris
Original Message
From: Bill Katakis [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=HN-cAaiV79LIysVOQKvqOCFy8BF_Zu7ttfmOL66d0e0CakRpgTJgRm7JZzJkR6tNSLHHsbzfPNPQiRsnbq7ITw]bkatakis@m...[/url
Sent: Friday, May 12, 2000 3:14 PM
To: basicstamps@egroups.com
Subject: Re: [noparse][[/noparse]basicstamps] stamps and SCR's
assuming you were going to use all stamp pins on a bs2, which
opto would you
use?
Lee Harker wrote:
> Chris,
> If you intend to use the SCR for 110VAC, I would highly
recommend using an
> opto-isolator made for driving SCRs & triacs. You can get
them in 1, 2 or 4
> per DIP package and they are cheap. They usually offer about
3000 volts of
> isolation to protect your Stamp or other low voltage
circuitry. They are
> packaged so that the input and output are on opposite sides
of the package.
> If you plan to make a PCB using these, it is usually a good
idea to use
> this arrangment to keep all low voltage on one side and the
high voltage on
> the other side of the board.
>
> At 09:29 PM 11/5/00 -0400, you wrote:
> >Has anyone out there ever crossed the big divide between a stamp
> >output and an SCR gate?
> >
> >Chris
> >
> >
> >
> >
per pin, is it not?
My big victory will be when I can do phase angle firing control of
back-to-back SCR's with stamp output.
Chris
Original Message
From: Bill Katakis [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=HN-cAaiV79LIysVOQKvqOCFy8BF_Zu7ttfmOL66d0e0CakRpgTJgRm7JZzJkR6tNSLHHsbzfPNPQiRsnbq7ITw]bkatakis@m...[/url
Sent: Friday, May 12, 2000 3:14 PM
To: basicstamps@egroups.com
Subject: Re: [noparse][[/noparse]basicstamps] stamps and SCR's
assuming you were going to use all stamp pins on a bs2, which
opto would you
use?
Lee Harker wrote:
> Chris,
> If you intend to use the SCR for 110VAC, I would highly
recommend using an
> opto-isolator made for driving SCRs & triacs. You can get
them in 1, 2 or 4
> per DIP package and they are cheap. They usually offer about
3000 volts of
> isolation to protect your Stamp or other low voltage
circuitry. They are
> packaged so that the input and output are on opposite sides
of the package.
> If you plan to make a PCB using these, it is usually a good
idea to use
> this arrangment to keep all low voltage on one side and the
high voltage on
> the other side of the board.
>
> At 09:29 PM 11/5/00 -0400, you wrote:
> >Has anyone out there ever crossed the big divide between a stamp
> >output and an SCR gate?
> >
> >Chris
> >
> >
> >
> >