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Size reduction, enhancement of capabilities, reduction of power consumption, and increasing the speeds of electronic devices, as well as their microcontrollers, have been the trend since the inventi
Networks play an important role in telecommunications. Networking has a tremendous effect on people's everyday lives. Identify the necessary components required in designing a wire-based and wireles
Historically op amps and comparators have a lot of similarity in their internal circuit designs. However, they have very different uses in application circuits. Let's talk about these differences.
Determine(using the thevenin equivalent circuit) what size resistor should be placed betweent R4 and R5 to ensure that resistor receives the maximum power possible from the power source
Derive the state space equation of a DC motor with: 1)supply voltage and load torque as inputs and 2)armature current, angular speed as outputs.
Derive the state space quation of a DC motor with supply voltage and load torque as inputs and armature current, angular speed as outputs.
A DC motor has the following characteristics. Rating: 35kW Operation: 350 V, draws 90A, operates at a speed of 1100 rev/min when supplying full load. Shunt: Field resistance is 150 Ohm and armature re
A three phase generator is producing power for a balanced load. Each phase provides an rms voltage of 690 V and an rms current of 1000 A. The angle between the voltage and current in each phase is 2
Design a low pass active filter circuit such that its roll off attenuates frequency components at 10 kHz or more by more than 10 dB. Also, it is desired to have the passband gain positive that does
An unpolarized beam of light is sent into a stack of four polarizing sheets, oriented so that the angle between the polarizing directions of adjacent sheets is 50 degrees. What fraction of the incid
Design a low pass active filter that passes frequencies at 900 Hz and below and at these values the magnitude (in dB) of the transfer function is 20+-3(between 23 dB and 17 dB). The circuit's magnit
Design a low pass active filter that passes frequencies at 900 Hz and below and at these values the magnitude (in dB) of the transfer function is between 23 dB and 17 dB. The circuit's magnitude (in
What is the maximum data rate possible for a standard telephone circuit with an SNR of 1023 and BW of 3 KHz using 8 bits per symbol
A modulator transmits symbols, each of which has 64 different possible states, 15,000 times per second. Calculate the baud rate and the bit rate.
A radio channel has a bandwidth of 10 KHz and a SNR of 15 dB. What is the maximum data rate that can be transmitted: (a) Using any system (b) Using a code with 64 possible states
For a 64-PSK modulator with an input data rate(fb) equal to 36 Mbps and a carrier frequency of 100 MHz, determine the minimum double-sided Nyquist bandwidth(fN) and the baud. Sketch the output spect
A split-phase motor has the following parameters : main winding effective resistance is 4ohm and effective reactance is 8?, and auxiliary winding effective resistance is 8ohm and effective reactance
Many communication systems connecting computers employ a technique known as "packet transmission." In this type of system, a collection of binary digits (perhaps 1000 of them) are grouped together a
Determine the resolution and quantization error for an eight-bit linear sign magnitude PCM code for a maximum decoded voltage of 1.27 V. For a 12-bit linear PCM code with a resolution of 0.02 V, dete
What device can be used to connect to data bus with enable/disable capability. When all these kind of devices tied to the bus are disabled, what logic level is on the bus line.
The range of an analog signal is 2 Vpp, and the samples of this signal are being quantized. The quantizer-output word size is 10 bit. What is the quantization interval Q
The desired signal at the output of the amplifier is 10 dBm, and the signal level applied to the fiber connector at the head end is 10 dBm. What should the gain of the amplifier be to have 10 dBm at
The received power at a receiver antenna is -38 dBm. If the system impedance is 50 Ohms, what is the voltage at the receiver antenna
Three amplifiers with power gains of 15, 22, and 7 are cascaded. The input power is 120 µW. What is the output power of the final amplifier stage
A six pole, 40 kW, 400 V d.c. motor draws 110 A from the supply. The shunt field resistance is 200 Ohm and the armature resistance is 0.5 Ohm. The armature is wave wound with 600 conductors operates