I need a circuit to indicate level of 12V battery

AlainB · Apr 10, 2010

There is another opening. Anyone interested?

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Hero999 · Apr 10, 2010

k7elp60 said:
Gentlemen thanks for your PC board layout, it is much more professional than mine. I built a number to these devices and enclosed them in a small plastic box. Original design used a bridge rectifier as the input and as a result it was not polarity sensitive.
I usually etch my own boards. I print the layout on a transparency and use positive sensitized boards. Anyway here is the single sided layout. The two large circle's with an inner circle were for placing the circuit board on the mounting supports in the enclosure. The enclosure used was a PACTEC model JM12-IE

The only problem with that board lay out is there's too many sharp corners which can potentially cause etching problems.

As a general rule, avoid all angles less than or equal to 90°. All those corners should be chamfered so they have an angle of 135°.

I need a circuit to indicate level of 12V battery

AlainB

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Hero999

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I need a circuit to indicate level of 12V battery

AlainB

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Hero999

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