Op-amp circuit 13 November 2013 problem 3

Find the range of voltage gain A_v of the ideal op-amp circuit below.

Solution

Op-amp circuit 13 November 2013 problem 2

Find the voltage gain A_v = V_o/V_i of the ideal op-amp circuit below.

Solution

Op-amp circuit 13 November 2013 problem 1

Find the output voltage V_o and the voltage gain A_v of the ideal op-amp circuit below.

Solution

DC and AC analyses of a fixed-bias BJT amplifier with a temperature stabilizing resistor and a negative power supply

Perform DC analysis of the fixed-bias BJT amplifier with a temperature stabilizing resistor and a negative power supply as shown below to find the BJT's operating point. Calculate all related voltages and currents in the circuit. Use information obtained from DC analysis to further perform AC analysis to find the small signal voltage gain, input and output impedances of this circuit at mid-band frequency.

Solution

Design of a fixed-bias BJT amplifier with a temperature stabilizing resistor at BJT's emitter and a negative power supply.

Design a fixed-bias BJT amplifier having a temperature stabilizing resistor R_E and a negative power supply so that its operating point is as shown in the IV graph. If only [commercially availble resistors] were used, how much would the Q-point deviate from the desired specification.

Solution:

DC and AC analysis of a fixed base-voltage BJT amplifier with a temperature stabilizing resistor at BJT's emitter.

Find the Q-point of a fixed base-voltage BJT amplifier having a temperature stabilizing resistor R_E. Also find related currents and voltages.

Solution

Design of a fixed base-voltage BJT amplifier with a temperature stabilizing resistor at BJT's emitter.

Design a fixed base-voltage BJT amplifier having a temperature stabilizing resistor R_E so that its operating point is as shown in the IV graph. If only [commercially availble resistors] were used, how much would the Q-point deviate from the desired specifications.

Solution

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