>Using the bridge you will ensure:
>2) There  will always be a potential difference of 1.4V between the 0V of
the circuit and the battery negative (two diode drops)

Bo, only one diode drop (0.7V), the other diode is in the positive power line.

Josef

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Electronical devices for chemical laboratory, custom electonics design
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Snail Instruments                     Josef Hanzal
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