Operation Of The Bipolar Junction Transistor (2)
Strings (SiPjAjk) = S7P5A51 Base Sequence = 12735 String Sequence = 12735 - 5 - 51
Using figure 122.3(a) as reference, determine the operating region of each of the Bipolar Junction Transistor illustrated in 122.3(b), 122.3(c) and 122.3(d) by determining whether the BE and BC junctions are forward-biased or reverse-biased.
S7P5A51 (Physical Change).
Pj Problem of Interest is of type change (physical change). Transistors are primarily used for signal amplification and switching. Both are change problems.
BJT illustrated in 122.3(b): BE junction is forward-biased and BC junction is reversed-biased.
So, BJT is in the active region.
BJT illustrated in 122.3(c): BE junction is reverse-biased and BC junction is reversed-biased.
So, BJT is in the cutoff region.
BJT illustrated in 122.3(d): BE junction is forward-biased and BC junction is forward-biased.
So, BJT is in the saturation region.
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