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DiscoverCircuits.com  --   Dave's Circuits
Circuits designed by David Johnson, P.E.

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Last Updated on:  06/17/2009 03:30:15 PM

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Circuit Forms Ideal Diode Function
This circuit uses a low power op amp and a p-channel FET to form a diode function with a very low 0.05 volt voltage drop.  With the selected FET, the circuit can handle up to 2 amps of current.  Higher currents are possible with a FET with a lower channel resistance. The total current drawn by the circuit during operation is a low 20 microamps.  The maximum voltage is 15v.

Circuit forms Ideal Diode Function

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