If the pnp transistor in the circuit of Fig. P8.93 is characterized by its exponential
Chapter 8, Problem 8.93(choose chapter or problem)
If the pnp transistor in the circuit of Fig. P8.93 is characterized by its exponential relationship with a scale current IS , show that the dc current I is determined by IR = VT ln(I/IS ). Assume Q1 and Q2 to be matched and Q3, Q4, and Q5 to be matched. Find the value of R that yields a current I = 200 A. For the BJT, VEB = 0.7 V at IE = 1 mA. Figure P8.93
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