Chegg Solutions for Microelectronic Circuits (Adel S Sedra, Kenneth C Smith) (Z-Library)_parte_1130

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Step of 5 10.024P Draw the following high frequency hybrid-π model. r, Bo B + C, r. E Figure 1 Step of 5 Draw the following modified circuit diagram with emitter and collector terminals are grounded. r, Bo + Figure 2 Step of 5 From Figure 2, it is clear that two capacitors and are in parallel. Write the expression of input impedance. Simplify the expression of = = The magnitude is, Step of 5 The frequency is defined in terms of is such an estimate of rx good to within 10% under the condition For satisfying the above condition should be greater than or equal Step of 5 Consider the resistance is, Simplify the equation (1) as follows: 100 Substitute 1 Therefore, the expression of frequency is 100