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With reference to Example 17.9, assume that the load torque applied to the PM DC motor is zero. Determine the response of the motor to a step change in input voltage. Derive expressions for the natural frequency and damping ratio of the second order system. What determines whether the system is over or under damped?
EXAMPLE 17.9
Dynamic Response of PM DC Motor Problem Develop a set of differential equations and a transfer function describing the dynamic response of the motor angular velocity of a PM DC motor connected to a mechanical load.
Using SR Flip-flops and NAND gates, design a system that outputs 1 if it takes an even number of clock cycles to recognize the pattern 11-0-101. Otherwise it outputs 0.
Design a buffer circuit to measure the voltage on a small capacitor using a bipolar transistor and a DVM. Design a similar circuitusing a FET transistor. Which is better and why
The resistance, inductance and capacitance of a parallel RLC circuit are 5 kO, 1.25 H and 8 nF, respectively. a- Calculate the roots of the characteristic equation that describe the the voltage response of the circuit. b- Will the response be overdam..
a). Write the mathematical expression for a waveform that alternates sinusoidally between between -5 mA and 0 mA with a frequency of 1kHz.b). Repeat,but for a waveform alternating sinusoidally between -10 V and -15 V with a period of 1 microseconds.
A full-adder is more generally known as a (3,2) counter, in that itadds three bits, producing a two bit result (sum and carry). A (4,3) counter sumsfour-bits, producing a three-bit result, and a (10,4) counter sums ten-bits, producing afour-bit res..
The speed of a 10HP, 230V, 1200 rpm separately excited DC motor is controlled by a 1-phase full-wave bridge converter. The rated armature current of the motor is 10 A. The armature resistance is 0.25 Ohm and the armature inductance is 10 mH.
the circuit has been connected for several seconds, find current in (a). in the 4.00 volts battery, (b). in the 3.00 ohm resistor, (c). in the 8.00 volts battery, (d). in the 3.00 volts battery and (e). find the charge on the capacitor?
A 100uf capacitor is initially charged to 100V. We want 90% of the initial energy to remain after 1 minuet. What is the the limit on the leakage resistance for the capacitor
What is the largest peak value of impulse voltage that can be applied to a test object of 10nF - Find the output terminal voltage and the peak-to-peak ripple - What will be the multiplication factor for each of the low voltage voltmeter readings.
The electric field in a region of space is E= 4 ax V/m and the magnetic flux density is B= 5 az Wb/m2. At t= 0 a particle with mass 1 kg and charge 1 C is located at the origin traveling at a velocity of u0= 10 ay m/s.
Create a Verilog module that implements 4 bit full adder-subtractor with overflow detection. You may use Verilog bitwise operators and gate primitives, but no mathematical operators or behavioral Verilog syntax.
A beam of X-rays with a wavelength l of 0.15 nm is directed at a crystal whose planes have a spacing of 0.25 nm. How many diffraction peaks (each arising from a different order n) are possible
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