**7.136 For the circuit in Fig. P7.136, called a bootstrapped follower: (a) Find the dc emitter current and gm, re, and rπ. Use β =100. (b) Replace the BJT with its T model (neglecting ro), and analyze the circuit to determine the input resistance Rin and the voltage gain vo/vsig. (c) Repeat (b) for the case when capacitor CB is open-circuited. Compare the results with those obtained in (b) to find the advantages of bootstrapping

136 - **7.136 For the circuit in Fig. P7.136, called a bootstrapped follower: (a) Find the dc emitter current and gm, re, and rπ. Use β =100. (b) Replace the BJT with its T model (neglecting ro), and analyze the circuit to determine the input resistance Rin and the voltage gain vo/vsig. (c) Repeat (b) for the case when capacitor CB is open-circuited. Compare the results with those obtained in (b) to find the advantages of bootstrapping

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images - **7.136 For the circuit in Fig. P7.136, called a bootstrapped follower: (a) Find the dc emitter current and gm, re, and rπ. Use β =100. (b) Replace the BJT with its T model (neglecting ro), and analyze the circuit to determine the input resistance Rin and the voltage gain vo/vsig. (c) Repeat (b) for the case when capacitor CB is open-circuited. Compare the results with those obtained in (b) to find the advantages of bootstrapping

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