1. Determine in which mode (depletion, enhancement or neither) each D-MOSFET in the figure -Vpp below. +Vpp +VpD Rp +VpD Rp Rp Rp Rs Ro RG Rs RG (d) (b) (a)
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Determine in which mode (depletion, enhancement or neither) each D-MOSFET in the figure below.
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- 6. Through the schematic symbols of MOSFETS, how can you differentiate between a depletion and an enhancement type MOSFET? P-channel or N-channel MOSFET?How do we know current flows in source terminal? Is this common for n-type mosfet? What is an n-type mosfet?Describe the operation of an n and a p type enhancement and depletion mode MOSFET
- In your own words, briefly describe the basic operation of an E-MOSFET.Suppose -Vcc is connected to the ground, What happens to the LED when Vin< Vref and how? What is the use of RL here and how is its value computed? Should the Vout also be connected to the ground?Draw the load line for the circuit given in figure-1 and also calculate the saturated collector current and VCEat half cut-offpoint?
- Explain the concept of a very large-scale integrated circuit (VLSI).5. In your own words, briefly describe the difference between the basic operation of a pchannel depletion-type MOSFET and p-channel Enhancement-type MOSFET.What is the role of resistor R3 in getting the low bias current we are obtaining out of the Widlar source? I don't really know the importance of R3 when looking at the figure. Is it because it controls the amount of current flowing through the transistor?
- Explain the concept of power semiconductor devices such as Insulated Gate Bipolar Transistors (IGBTs) and Thyristors. How do these devices enable efficient power control and switching in high-power applications?Draw the block diagram of a HVDC converter station and briefly describe the function of each Component.Define LCC and VSC and compare their performancedraw a qpsk modulator circuit using different circuit compents like resistors, transistors etc not a block diagram