-The circuit in Figure has the following values: VCC = 12 V, R1 = 48 kΩ, R2 = 15 kΩ, RC = 4.7 kΩ, RE = 2.2 kΩ, RL = 12 kΩ, and hfe = hFE = 200.
What is the compliance of this circuit?
A) 6.6 V
B) 10.5 V
C) 12 V
D) It cannot be determined with the information given.

Question

-The circuit in Figure  has the following values: VCC = 12 V, R1 = 48 kΩ, R2 = 15 kΩ, RC = 4.7 kΩ, RE = 2.2 kΩ, RL = 12 kΩ, and hfe = hFE = 200.
What is the compliance of this circuit?
A) 6.6 V 
B) 10.5 V 
C) 12 V 
D) It cannot be determined with the information given.

Quizplus · Accepted Answer

Compliance refers to the maximum output voltage swing a circuit can provide. In this case, it's determined by the collector-emitter voltage swing of the transistor. The compliance can be approximated by subtracting the voltage drop across RE from VCC. The voltage drop across RE (V_RE) can be found using Ohm's law (V = IR), where I is the current through RE. The current through RE (I_E) is approximately equal to the collector current (I_C) due to the high hFE value, and can be estimated by dividing the voltage across the base-emitter junction (assumed to be around 0.7V) by the total resistance in the base path (R1||R2). However, without calculating the exact base current and subsequently the emitter current, a precise calculation of compliance requires detailed analysis. Given the choices, the closest estimate involves considering the voltage drops and the transistor's operation within its active region, leading to a compliance less than VCC but not precisely calculable to the options provided without further calculations. Thus, the choice indicating it cannot be determined with the information given seems most appropriate, but based on the typical approach to such problems, an estimate would involve considering the maximum swing around the quiescent point, which is not directly calculable to the options given without assuming specific operating points or additional circuit details.

-The Circuit in Figure Has the Following Values: VCC