. Draw and explain the Output Characteristics Curves for a
Typical Bipolar Junction Transistor connected as...
. Draw and explain the Output Characteristics Curves for a
Typical Bipolar Junction Transistor connected as common-emitter
configuration. b. Explain in details its different regions
Sketch the equilibrium band structure of pnp bipolar junction
transistor (BJT). In point form, explain how
the application of a bias voltage at the “base” changes the band
structure that you have drawn and can be
used to turn this device “on” and “off”. (a well-labeled
equilibrium diagram will enable you to complete this without
any further band-structure diagrams)
1. Explain on the basic operation of the n-channel JFET. Draw
the drain characteristics or output characteristics of the
mentioned JFET type and denote the important parameters on the
graph
2. Explain why the JFET is called a unipolar device. Your
explanation must be based on the n-channel or p-channel device
which is biased to operate as an amplifier
3. A JFET amplifier has a load resistance, RL= 500 kΩ. Find the ac
drain resistance, rd if the amplification factor,...
What are the typical output characteristics of Nd-YAG
laser? What are the pumping mechanisms employed in the fabrication
of a Nd-YAG laser? Compare different pumping mechanism in terms of
their advantages and disadvantages.
Bipolar junction transistor
V-VBE=B*IB+D*IC
what does it mean B=? and D=?
SI=dIC/dICBO=(1+hfe)*B/(B+D*hfe)
IF B,D=0 SI=? AND B=D SI=?
SV=dIC/dVBE=(-hfe)/(B+D*hfe)
IF B,D=0 SV=? AND B=D SV=?
SH=dIC/dhfe=ICQ*B/(hfe*(B+D*hfe))
IF B,D=0 Sh=? B=D Sh=?
NMOS and PMOS
Explain the difference between a NMOS and PMOS and plot their
characteristics curves LTspice (you may use any standard MOSFET
circuit). Distinguish between NMOS/PMOS and NMOS4/PMOS4.
1.pn junction when forward bias is applied
Draw the energy band diagram.
Explain all the quasi fermi levels in the depletion region and why
they are so drawn.
2.pn junction when reverse bias is applied
Draw the energy band diagram.
Explain all the quasi fermi levels in the depletion region and why
they are so drawn.