It''s hot as hell in here
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Posts: 46,084
At 03:02 PM 3/6/01 +0000, chilton@t... wrote:
>Oh great ones,
>
>I am struggling with heat issues in one of my projects. Several people
>have offered solutions, but the problem really boils down to this:
>
>I have a 12v LCD screen being powered by a 12v battery. I would like
>to use a smaller battery, but I'm a little unclear how all of this
>power conversion stuff works.
How much noise can you tolerate? How much current does the 6V stuff
draw? How many of these are you doing?
I tend to use a lot of National Semiconductor simple switchers. The LM2575
is a nice little buck convertor that is good up to about 1 amp. Where are
you located? I could possibly send you a card that we use a lot of: it is
about 1" x 1" and contains a complete simple switcher. Output is
adjustable by changing 1 resistor.
dwayne
Dwayne Reid <dwayner@p...>
Trinity Electronics Systems Ltd Edmonton, AB, CANADA
(780) 489-3199 voice (780) 487-6397 fax
Celebrating 17 years of Engineering Innovation (1984 - 2001)
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Do NOT send unsolicited commercial email to this email address.
This message neither grants consent to receive unsolicited
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>Oh great ones,
>
>I am struggling with heat issues in one of my projects. Several people
>have offered solutions, but the problem really boils down to this:
>
>I have a 12v LCD screen being powered by a 12v battery. I would like
>to use a smaller battery, but I'm a little unclear how all of this
>power conversion stuff works.
How much noise can you tolerate? How much current does the 6V stuff
draw? How many of these are you doing?
I tend to use a lot of National Semiconductor simple switchers. The LM2575
is a nice little buck convertor that is good up to about 1 amp. Where are
you located? I could possibly send you a card that we use a lot of: it is
about 1" x 1" and contains a complete simple switcher. Output is
adjustable by changing 1 resistor.
dwayne
Dwayne Reid <dwayner@p...>
Trinity Electronics Systems Ltd Edmonton, AB, CANADA
(780) 489-3199 voice (780) 487-6397 fax
Celebrating 17 years of Engineering Innovation (1984 - 2001)
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Do NOT send unsolicited commercial email to this email address.
This message neither grants consent to receive unsolicited
commercial email nor is intended to solicit commercial email.