Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Since dc motors of various types are used extensively in control systems, it is essential for analytical purposes that we establish a mathematical model for the dc motor. Let us consider the case of a separately excited dc motor with constant field excitation. The schematic representation of the model of a dc motor is shown in Figure. We will investigate how the speed of the motor responds to changes in the voltage applied to the armature terminals. The linear analysis involves electrical transients in the armature circuit and the dynamics of the mechanical load driven by the motor. At a constant motor field current If, the electromagnetic torque and the generated emf are given by
Te = Kmia
ea = Kmωm
where Km = kIf is a constant, which is also the ratio ea/ωm. In terms of the magnetization curve, ea is the generated emf corresponding to the field current If at the speed ωm. Let us now try to find the transfer function that relates m(s) to Vt(s).
Ask questiwe have half wave rectifier connected to a dc motor load. by using a step down transformer from 8 to 1. by modalization we have the Primary Winding resistance is Rp=50 oh
Q. In a 110V compound generator, the armature, shunt and series winding resistance are 0.06?, 25? and 0.04? respectively. The load consists of 200 lamps each rated 55W, 110V conn
Decoder A decoder is logic circuit that energizes a particular output line for each combination of input signal. Fig shown the block diagram logic diagram and fu
Q. What the major advantages FET transistors over BJT transistors? a. BJT transistor (bipolar junction transistor) is a bipolar device - the prefix bi-revealing that the conduc
circuit diagram,working and construction of voltmeter
Explain Commercial ADCs and DACs? Analog interface chips (AICs), like those in the Texas Instruments TLC32040 series, consist of all type of the analog components that explaine
Explain relative data addressing mode (with examples) available in microprocessors. Relative Mode: Operand supplied is an offset, not the actual address. Added the con
Question: a) Describe five advantages of LED lighting over conventional incandescent lighting. b) State two impairments that reduces the radiant flux of a surface-emitting
a) Sketch the variation of electron concentration with temperature for i) an n-type semiconductor doped with 1021 donors m-3 ii) an intrinsic semiconductor. b) Expla
Describe flat plate collectors. Explain liquid flat plate collector with relevant diagram. Describe different types of absorbing surface areas with diagram. Also discuss their r
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd