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Logic Gates

Consider the ...

Question

Consider the circuit shown in the figure below:

The circuit is constructed using two types of diode i.e. a Germanium (Ge) diode and a silicon (Si) diode. The forward cut-in voltage and the reverse breakdown voltage of both Ge and Si are (0.2 V, 13 V) and (0.7 V, 20 V) respectively, then the output voltage $(V_{o})$ for the given circuit is equal to

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Solution

In the given figure shown the Ge diode will be forward biased and the Si diode will not be forward bias, because of the 0.2 V drop across the Ge diode. Thus the equivalent circuit can be drawn as,

Rest of the diode will be open circuited this the output voltage will be equal to 12 - 0.2 = 11.8 V

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