Identify the transistors forming the current mirror

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Reference no: EM132501848

Question 1 -(a) Sketch and label the I-V curves of:

i. An ideal diode.

ii. A Germanium diode.

Label the sketched diagrams clearly.

(b) Briefly explains the difference between intrinsic and extrinsic semiconductor.

i. Calculate the diode currents I_D1 and I_D2.

ii. Determine the biasing conditions of diodes D₁ and D₂.

Question 2 - A silicon bipolar junction transistor (BJT) circuit is shown in Figure 2 required to bias a transistor to half the supply voltage. A transistor model BC107A with h_fe of 300 is used and supply voltage, V_CC is 12 volts. Given the collector current, I_C is 1mA and the base emitter voltage, V_BE is 0.7V.

(a) State the name of this circuit configuration.

(b) Explain the advantage of this circuit configuration compared to self-bias circuit.

(d) Find the value of R_C. Hint: R_C = V_CC/(2I_C).

(e) Find the value of R_B. Hint: R_B = ((V_CC- V_BE)*h_fe)/(2I_C).

Question 3 - The figure below shows an amplifier with current mirror as active load. The MOSFETs have the following parameters: k_n' = 300μA/V², V_A(NMOS) = 30V, V_A(PMOS) = -15V, V_tn = 26mV, R₁ = 5k?, R₂ = 12k?, R₃ = 400?, L = 0.5μm and W = 5μm. The forward voltage drop in V_D1 is 0.7V. Assume the base current of Q4 is negligible compared to emitter and collector currents of Q4 with all the transistors biased in the active region.

(a) Identify the transistors forming the current mirror.

(b) Calculate the value of reference current, I_REF.

(d) Given that I_D1 = k_n' (W/L) (V_GS1 - V_tn)², calculate the gate to source voltage of Q1.

Question 4 - Refer to lab manual on Appendix section - Lab Exercise -

Title: BJT DC circuit simulation by using Multisim Live (Drag and Drop).

Objective: To construct and analyze BJT DC circuit by using Multisim Live (Drag and Drop).

Discussions: Write a short report to discuss your answers. Your report should contain a short introduction, some explanation on BJT DC circuit simulation, your experimental procedure, and the results you obtain at every stages of the simulation.

Question 5 - Refer to lab manual on Appendix section - Lab Exercise

Title: Operational Amplifier simulation by using Multisim Live (Drag and Drop).

Objective: To construct and analyze Operational Amplifier circuit by using Multisim Live (Drag and Drop).

Note - Need in word format and with clear screen shot of for lab answer.

Attachment:- Assignment File - Questions.rar

Reference no: EM132501848

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