logaritmic amplifier

108

01:13:29

Vout = (0.06 x log(Vin))+ K
K is 0.659

adjust your K based your prototying. will be different based on the actual component error.

this circuit sure be useful when you wanted to measure high voltage and read it low. e.g. read into MCU.

published 1 year ago

eekee

1 year ago

Interesting! :) Though the capacitor muddies the output even at 1Hz.

eekee

1 year ago

Now it's fine. ... Oh I see, it doesn't like adjustnents with the capacitor in place.

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