So what kind of circuit WILL absorb spikes and other kind of noice in a
car-ish enviroment?
If you want to use a PIC design running at say 10MHz in a car, what kind of
protection do you want to add before (or after) your 7812 regulator?

/Johnny


"Larry G. Nelson Sr." wrote:

> If you are just using the battery then no problem.  If the car is running
> when you are using this it is another story entirely. The specs allow for
> some surges that are very bad news. I bought a cheap inverter and get 110
> VAC which I then feed to the standard wall supply brick. Works for
> computers and saves expense of buying power supplies or the hassle of
> building something.
> If you really want to build something you want to block, swamp, and absorb
> spikes and surges to protect your equipment. A 7812 will NOT reliably do
> the job for you.

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