A VBE multiplier is designed with equal resistances for nominal operation at a terminal current of 1 mA, with half the current flowing in the bias network. The initial design is based on β =∞and VBE =0.7 V at 1 mA.
(a) Find the required resistor values and the terminal voltage.
(b) Find the terminal voltage that results when the terminal current increases to 2 mA. Assume β=∞.
(c) Repeat (b) for the case the terminal current becomes 10 mA.
(d) Repeat (c) using the more realistic value of β =100.