A TTL inverter prototype is shown in Figure 8 with the following values: VCC = 3.5 V, RB = 6kΩ, and RC = 3kΩ Figure 8. (a) When V1 = 0.15 V, Q2 is off and Q1 is in saturation with VBEsat = 0.75 V and VCEsat = 0.05 V. Calculate the available currents and the power dissipated in the circuit. (b) When vi = Vcc, Q1 is at reversed active mode with βR = 0.25 and Q2 is in saturation mode with VBEsat = 0.75 V and VCEsat = 0.15 V. Calculate all the available currents and the total power of dissipation.
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A TTL inverter prototype is shown in Figure 8 with the following values: VCC = 3.5 V, RB = 6kΩ, and RC = 3kΩ Figure 8. (a) When V1 = 0.15 V, Q2 is off and Q1 is in saturation with VBEsat = 0.75 V and VCEsat = 0.05 V. Calculate the available currents and the power dissipated in the circuit. (b) When vi = Vcc, Q1 is at reversed active mode with βR = 0.25 and Q2 is in saturation mode with VBEsat = 0.75 V and VCEsat = 0.15 V. Calculate all the available currents and the total power of dissipation.