using the bs2 to power a portable cd player
Archiver
Posts: 46,084
i'm having a problem with using the stamp to power a portable "walkman"
style cd player. if i apply 5vdc from my power supply the cd player works, but
when i use the stamp the output drops from 5 volts to 2.5 volts. can anyone
give me a suggestion on how to remedy this problem. thanks in advance for
any help.
style cd player. if i apply 5vdc from my power supply the cd player works, but
when i use the stamp the output drops from 5 volts to 2.5 volts. can anyone
give me a suggestion on how to remedy this problem. thanks in advance for
any help.
Comments
Tell us what you are using to power the stamp and we can provide a solution.
It sounds like you want the stamp to control the power to your cd player,
yes/no?
There are some 5 volt regulators that have an "enable" terminal. One solution
is to get one of these regulators. (will look up the number tomorrow at work)
and use the stamp to control the enable terminal, and the regulator will run
from the same power that is used to power the stamp (9v battery, wall mart etc)
ken
===========================
i'm having a problem with using the stamp to power a portable "walkman"
style cd player. if i apply 5vdc from my power supply the cd player works,
but
when i use the stamp the output drops from 5 volts to 2.5 volts. can anyone
give me a suggestion on how to remedy this problem. thanks in advance for
any help.
[noparse][[/noparse]Non-text portions of this message have been removed]
you are 'powering' a cd player with a stamp?
jim
http://www.geocities.com/jimforkin2003/
Original Message
From: jsteff74 [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=aIwXI047T9lkwlLylDQJAAetfJKf7uirDSIBx83IgPPX8qHsGIdvidDIJ_aCo--My7p_ytJobG8H6w]jsteff74@y...[/url
Sent: Monday, March 29, 2004 10:17 PM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] using the bs2 to power a portable cd player
i'm having a problem with using the stamp to power a portable "walkman"
style cd player. if i apply 5vdc from my power supply the cd player works,
but
when i use the stamp the output drops from 5 volts to 2.5 volts. can anyone
give me a suggestion on how to remedy this problem. thanks in advance for
any help.
To UNSUBSCRIBE, just send mail to:
basicstamps-unsubscribe@yahoogroups.com
from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
Yahoo! Groups Links
smartdim@a... writes:
There are some 5 volt regulators that have an "enable" terminal. One solution
is to get one of these regulators. (will look up the number tomorrow at work)
=============
http://www.mskennedy.com/pdf/5130rd.pdf
http://www.semicon.toshiba.co.jp/eng/prd/linear/doc/pdf/3552c.pdf
http://cache.national.com/ds/LM/LMS5258.pdf
[noparse][[/noparse]Non-text portions of this message have been removed]
i'm using a power supply that i built. the cd player runs off of a 4.5 vdc
transformer or 3 volts of battery power.
is it possible to use a transistor?
> The CD player wants more current than the stamp is capable of supplying.
>
> Tell us what you are using to power the stamp and we can provide a
solution.
>
> It sounds like you want the stamp to control the power to your cd player,
> yes/no?
>
> There are some 5 volt regulators that have an "enable" terminal. One
solution
> is to get one of these regulators. (will look up the number tomorrow at work)
> and use the stamp to control the enable terminal, and the regulator will run
> from the same power that is used to power the stamp (9v battery, wall mart
etc)
>
> ken
> ===========================
> i'm having a problem with using the stamp to power a portable "walkman"
> style cd player. if i apply 5vdc from my power supply the cd player works,
> but
> when i use the stamp the output drops from 5 volts to 2.5 volts. can anyone
> give me a suggestion on how to remedy this problem. thanks in advance for
> any help.
>
>
> [noparse][[/noparse]Non-text portions of this message have been removed]
i'm using a power supply that i built. the cd player runs off of a 4.5 vdc
transformer or 3 volts of battery power.
is it possible to use a transistor?
> The CD player wants more current than the stamp is capable of supplying.
>
> Tell us what you are using to power the stamp and we can provide a
solution.
>
> It sounds like you want the stamp to control the power to your cd player,
> yes/no?
>
> There are some 5 volt regulators that have an "enable" terminal. One
solution
> is to get one of these regulators. (will look up the number tomorrow at work)
> and use the stamp to control the enable terminal, and the regulator will run
> from the same power that is used to power the stamp (9v battery, wall mart
etc)
>
> ken
> ===========================
> i'm having a problem with using the stamp to power a portable "walkman"
> style cd player. if i apply 5vdc from my power supply the cd player works,
> but
> when i use the stamp the output drops from 5 volts to 2.5 volts. can anyone
> give me a suggestion on how to remedy this problem. thanks in advance for
> any help.
>
>
> [noparse][[/noparse]Non-text portions of this message have been removed]
current the CD player uses for a worst case. Measure it if you need to (Volume
at max, and something with a heavy Base will give you maximum current
consumption)
ken
i'm using a power supply that i built. the cd player runs off of a 4.5 vdc
transformer or 3 volts of battery power.
is it possible to use a transistor?
[noparse][[/noparse]Non-text portions of this message have been removed]