Explain different gate drives techniques with base circuits and key features.

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Description : Explain MOSFET gate drive circuit and totem pole configuration.

Answer : MOSFET gate drive circuit: The turning on and turning off of MOSFET can be controlled from gate to source voltage signal. If the gate to source voltage of MOSFET exceeds threshold ... this configuration, the two switches (transistors) are used in totem pole arrangement with a comparator.

Description : Explain thyristor gate drive circuit.

Answer : Thyristor Gate Drive Circuit: The thyristor can be turned on by pulse voltage signal at gate terminal and it does not require continuous drive signal like the transistor. The gate ... circuit provide required minimum gate voltage and gate current then the thyristor conducts properly.

Description : Explain the “mitigation of power theft” and “faulty meter replacement” for energy conservation techniques to reduce commercial losses. 

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Description : Explain transformer isolated drive circuits providing both signal and power.

Description : What is the use of AC and DC drives?

Description : State types of enclosures of electric drives.

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Description : Describe the gate circuit for a single phase full converter.

Description : What are the fundamental requirements of gate drive ICs?

Description : Justify. Power MOSFET is operated at high enough gate source voltage to minimize the conduction losses. 

Answer : MOSFET is metal oxide field effect transistor. MOSFET is a voltage controlled device. MOSFET is majority carrier device. MOSFET are of two one is n-channel MOSFET and p-channel MOSFET. Gate, ... . Hence, power MOSFET is operated at high enough gate-source voltage to minimize the conduction losses.

Description : basic gate drive circuit of GTO

Answer : basic gate drive circuit of GTO

Description : Draw the structural diagram of GTO. Explain briefly the switching behavior of GTO with the help of appropriate voltage and current waveform.

Answer : Gate Turn Off Thyristor (GTO) Conventional Thyristor can be turned on with gate terminal but can not turn off from gate terminal. But in case of Gate Turn Off Thyristor (GTO), we can turn it on and off ... subdivided as storage period (Ts), fall period (Tp) and tail period (Tt).

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Description : What is the need for electrically isolated drive circuits?

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Description : What is base load and peak load power plants?

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Description : What are the seven base units?

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Description : The time base signal in Cathode Ray Oscilloscope (CRO) is  (1) A square wave signal (2) A sawtooth signal (3) A triangular wave signal (4) A sinusoidal signal

Answer : 2 Saw tooth 

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Description : List any four salient features of 8085 microprocessor

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Description : State any 4 features of VHDL.

Answer : 1. It is a concurrent language that is it can execute statements at same time in parallel as in hardware.  2. It is a sequential language that is it can execute sequential statements one at a ... for asynchronous resets.  18. Logical statement (like case and if/then) endings are clearly marked.

Description : State any four salient features of turbo- alternator.

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Description : List out any four salient features of hydro generator.

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Description : Write important features of IC 723.

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Description : Explain the concept of initial and final conditions in switching circuits for elements R and L. 

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Description : Function of OR Gate its logical symbol and truth table.

Answer : Function: - OR gate is used to perform logical addition. So used in adder subtractor and logic circuits where logical Oring is required. Used to implement SOP form equations. Also used in PLA logic. Logical symbol of OR gate :- Truth table:- 

Description : Sketch symbol of NAND gate and NOR gate.

Answer : Symbol of NAND gate and NOR gate

Description : What does the AND gate do?

Answer : AND gate multiple two inputs. If any one input is zero output will be zero if both inputs are one then only output is one.

Description : Circuits with XL Alone

Answer : Circuits with XL Alone X L values in series let two inductive reactances X L 1 and X L 2 are connected in series and has value 50 ohm and 50 ohm respectively. 100 volts A C ... phasor. And it is taken horizontal. Phase angle between inductive current and voltage is same 90 degree.

Description : AC Circuits with Resistance but No Reactance

Answer : AC Circuits with Resistance but No Reactance AC Circuits with Resistance but No Reactance Series resistances let two resistances R 1 and R 2 are connected in series as shows in figure and there ... voltage. Voltage V A is common to both the branch hence voltage V A is common reference.

Description : GATE 2020 syllabus electrical engineering

Answer : EE: Electrical Engineering Section 1: Engineering Mathematics Linear Algebra: Matrix Algebra, Systems of linear equations, Eigenvalues, Eigenvectors. Calculus: Mean value theorems, Theorems of ... to dc converters, Single phase and three phase inverters, Sinusoidal pulse width modulation.

Description : What is the propagation delay of a logic gate?

Answer : The application input pulse and the occurrence of resulting output pulse is called propagation delay of logic gate.

Description : What is the purpose of a NAND gate?

Answer : Nand gate has 2 inputs and only 1 output and it is equivalent of an and gate. The output of a nand gate is high(1) only when anyone or both inputs are low(0).and the output of nand gate is low(0) only when both the inputs are high(1).nand gate is also called as universal gate.

Description : What is an inverter gate?

Answer : Not gate is known as inverter gate as it inverts the I/P

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