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2. If a BJT is likened to a valve, what should the base current be likened...
A npn BJT has a B = 110 and a base current of iB = 50 μA. Calculate the collector current and the emitter current. Assume operation in the active region. Express the results in mA. (4 pts.)
BJT Theoretical: - What are the three modes of the operation of BJTs ? How to force a BJT to operate in each of the three modes of operation ? - Use iC ∼ vBE to identify the region where BJTs operate in (i) cut-off mode and (ii) active mode. - Show the large-signal equivalent circuit of a BJT biased in active mode. - The base current of a BJT consists of two distinct components, what are they ? -...
(TCO 2) Which is true for the BJT? Group of answer choices a. Emitter current equals Collector current b. Drain current equals Source current, and Gate current is zero c. Emitter current equals to Base 1 current plus Base 2 current d. Gate current plus Emitter current is equal to Drain current e. Emitter current equals Collector current plus Base current
Please can you explain details about BJT following steps:- Physical structure of BJT (both npn or pnp)- Operation of BJT in cut-off, in active mode and in saturation mode- In active mode, what could be done to reduce base current
4. Show that the current transfer ratio is equal to: CE2 REFV for the basic BJT Current Mirror shown next when the junction ratio between Q 2 and Q1 is equal to n # 1. In the above equation, VB is the voltage between base and emitter when the transistor is in active mode, V z is the voltage between collector and emitter at the rightmost transistor, and V is the Early voltage. REF Note: For this problem we are...
T=300K, Ni=1E10cm-3
1. [BJT Forward-Active Current] For a npn BJT with cross-section as below: (a) [20%] Assuming VBE 0.8 V, calculate the base neutral region width (WB), and confirm whether WB< Ln. (Hint: consider the depletion widths at the base/emitter and base/collector junctions.) (b) [3090] Assuming VBE-0.8 V. calculate lc. IB and IE. Note: use the appended graphs for Ln and Dn BE 50 ?m 50 ?m Emitter Il Base 0.4 um Collector Active base region Nd(Emitter) 1 x 1020...
2. BJT Current Mirror (10) In the following circuit that is powered by Vcc=5.7 V and -Vee = -5.7 V, the BJTs have infinite common-emitter DC current gains ( = 50 for each BJT). The BE junctions have a same forward biasing voltage of 0.7 V. Find I, V, V2, V3, V. for R= 5 k 2. +5.7 V Os+
Assume you have a BJT circuit in saturation mode shown below. If you increase the base current by getting Vs bigger, how does it affect the collector current Ic? Explain in terms of the saturation point on the DC Load Line. VCC 17.0V | RC 31k0 ICO . . . . . . R R . . .. . . .. .
4. Consider the following Common Base BJT circuit given in the figure below: i. Use the data sheets of CA3046 BJT array and design a common collector circuit given in the following Figure 2 with the stated specifications in Table 2 Clearly show your design procedure. (Hint: show your calculation steps for both DC and AC small signall analysis) ii. Important Note : Ifyou remove RE you should also remove ClI, that is, connecting ac voltage source directly to emitter)...
Please explain part A in details thx!
Question 3 An n'pn Si BJT is shown in Figure Q3(a). The emitter is heavily doped with 1020 cm3 whereas the base and collector are lightly doped with 5x1018 and 3x1018, respectively. The lengths of emitter, base, and collector are 0.5um, 0.2um, and 0.5 um.. The dielectric constant of silicon is 11.8 and the intrinsic carrier concentration at 300 K is 1.5x1010 cm3. Assume that a 0.026 eV at 300 K. 0.99, e...