Using a 12V automotive Subject
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>
> Keith:
>
> This subject came up here recently, and someone suggested a National
> LM2940 regulator, which is designed for automotive apps. It has
> protection for reverse polarity and voltage spikes. There are 5 to 15
> volt versions available at 1 amp. I believe DigiKey has them. This
> would probably be the "cleanest" way to go.
>
> Good luck,
> Ray McArthur
>
I have plans for a DGPS rx that uses the LP2950ACZ-5.0. He also
has an automotive power conditioner before it. First thru a 1N4002
diode, then fuse,then a 1000uH choke,then 2200uF 35V cap and
finally a P6KE20(transorb?). Ground is straight thru.
> Keith:
>
> This subject came up here recently, and someone suggested a National
> LM2940 regulator, which is designed for automotive apps. It has
> protection for reverse polarity and voltage spikes. There are 5 to 15
> volt versions available at 1 amp. I believe DigiKey has them. This
> would probably be the "cleanest" way to go.
>
> Good luck,
> Ray McArthur
>
I have plans for a DGPS rx that uses the LP2950ACZ-5.0. He also
has an automotive power conditioner before it. First thru a 1N4002
diode, then fuse,then a 1000uH choke,then 2200uF 35V cap and
finally a P6KE20(transorb?). Ground is straight thru.