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The Ward-Leonard system, which is used in the control of large dc motors employed in rolling mills, is a highly flexible arrangement for effecting position and speed control of a separately excited dc motor. A simplified schematic diagram of such a system is shown in Figure (a), in which the tachometer, error detector, and amplifier are represented functionally rather than by electric circuit connections. Assume the motor field current is held constant, the load torque is ignored, and the generator speed is held constant under all conditions of operation. Determine the transfer functions Ωo/Eg and Ωo/Ee, and develop a block diagram for the system.
Explain the operation of 8279. Explain the following terms: (i) N key Roll over. (ii) Key board debounce. (iii) FIFO RAM. Ans The 8279 microprocessor i
dear sir, when i am going to simulate my model in matlab i am getting the following error : the derived input for the integrator is inf or nan at time xxxxx. try to reduce the step
Explain the CMP instruction . CMP: The comparison instruction is a subtraction which changes only the flag bits; the destination operand certainly not changes. A comparison is h
Q. Obtain a block diagram of a shift-left/right register using D flip-flops. Q. Design a 4-bit universal shift register. Q. (a) Show a block diagram of an SRFF connected to s
Athree-phase, wye-connected, round-rotor, 220- V, 60-Hz, synchronous motor, having a synchronous reactance of 1.27 per phase and negligible armature resistance, is connected in p
Types of bias circuit for Class A amplifiers: There are five common types of biasing circuits used with Class A bipolar transistor amplifiers: A. Fixed bias B. Collector
how much and what to write it is of 30 marks
Write explanatory notes on Microprocessor development system. Microprocessor development system : Computer systems have undergone several changes recently. Machines which
What do you understand by solid modeling and wireframe modeling in CAD systems? Explain and compare the both modellings. Describe the following 1. Boundary representation 2.
Q. A three-phase, 60-Hz induction motor runs at almost 1800 r/min at no load, and at 1710 r/min at full load. (a) How many poles does the motor have? (b) What is the per-unit
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