You are asked to design a BJT inverter, as shown in Figure 2.b. The input voltage is equal to either zero (logic level 0) or 5 V (logic level 1), and Vcc = 5 V. The transistor has VBe = 0.6 V when it is on and Vce (sat) = 0.2 V. i) Calculate the value of Rc to have Iç = 3 mA when the transistor is on. ii) Calculate the maximum value of Rp to make sure the transistor is in saturation when it is on, assuming Bmin = 80 in the active mode. +Vc Re Rg Figure 2.b.

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You are asked to design a BJT inverter, as shown in Figure 2.b. The input voltage
is equal to either zero (logic level 0) or 5 V (logic level 1), and Vcc = 5 V. The
transistor has VBe = 0.6 V when it is on and Vce (sat) = 0.2 V.
i)
Calculate the value of Rc to have Iç = 3 mA when the transistor is on.
ii)
Calculate the maximum value of Rp to make sure the transistor is in
saturation when it is on, assuming Bmin = 80 in the active mode.
+Vc
Re
Rg
Figure 2.b.
Transcribed Image Text:You are asked to design a BJT inverter, as shown in Figure 2.b. The input voltage is equal to either zero (logic level 0) or 5 V (logic level 1), and Vcc = 5 V. The transistor has VBe = 0.6 V when it is on and Vce (sat) = 0.2 V. i) Calculate the value of Rc to have Iç = 3 mA when the transistor is on. ii) Calculate the maximum value of Rp to make sure the transistor is in saturation when it is on, assuming Bmin = 80 in the active mode. +Vc Re Rg Figure 2.b.
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