LABORATORY EXPERIMENT
... 1) Build the comparator circuit described in Figure 10. Reasonable values for R range from 100k to a few MAdjust the potentiometer so that the comparator is switched by the transmitted signal, but not the noise. The function of R is to prevent spurious switching of the comparator by noise at the ...
... 1) Build the comparator circuit described in Figure 10. Reasonable values for R range from 100k to a few MAdjust the potentiometer so that the comparator is switched by the transmitted signal, but not the noise. The function of R is to prevent spurious switching of the comparator by noise at the ...
Resistors in Microwave Applications
... there is an additional contribution to the impedance by an inductance L and a capacitance C to the actual resistance value R. The inductance results from the trim cutting, the capacitance is formed by the ceramic dielectric of the resistor body and the metallic contacts. The following substitution c ...
... there is an additional contribution to the impedance by an inductance L and a capacitance C to the actual resistance value R. The inductance results from the trim cutting, the capacitance is formed by the ceramic dielectric of the resistor body and the metallic contacts. The following substitution c ...
G / E-Series Motor Protection Relay Product Features Specifications
... requirements may lead to personal injury as well as damage to electrical equipment or other property. NEVER bypass external fusing. NEVER apply the voltages at Program Lock and Auto Reset terminals. Before performing Dielectric or Megger testing on any equipment in which the monitoring device is ins ...
... requirements may lead to personal injury as well as damage to electrical equipment or other property. NEVER bypass external fusing. NEVER apply the voltages at Program Lock and Auto Reset terminals. Before performing Dielectric or Megger testing on any equipment in which the monitoring device is ins ...
Chapter 8: Data Communication Fundamentals
... BPS=bits per second In early modems only, baud=BPS Each signal change can represent more than one bit, through complex modulation of amplitude, frequency, and/or phase Increases information-carrying capacity of a channel without increasing bandwidth Increased combinations also leads to increase ...
... BPS=bits per second In early modems only, baud=BPS Each signal change can represent more than one bit, through complex modulation of amplitude, frequency, and/or phase Increases information-carrying capacity of a channel without increasing bandwidth Increased combinations also leads to increase ...
A SATELLITE RECEIVING FRONT-END FOR
... the active devices based on cost and availability rather than electrical performances and the design of an (un)suitable microstrip circuit based on extensive computations. Unfortunately very little experimentation has been done with the real amplifier circuit and even less experiments have been made ...
... the active devices based on cost and availability rather than electrical performances and the design of an (un)suitable microstrip circuit based on extensive computations. Unfortunately very little experimentation has been done with the real amplifier circuit and even less experiments have been made ...
Effects of High Switching Frequency on Buck Regulators
... the switching frequency will decrease in an irregular manner (pulse skipping) since a VIN-dependent charge must be delivered to the output during the blanking time at each turnon. For a given load current, FSWAVERAGE = Load current/(VIN – Vout) Why be concerned with performance at loads <10% of max ...
... the switching frequency will decrease in an irregular manner (pulse skipping) since a VIN-dependent charge must be delivered to the output during the blanking time at each turnon. For a given load current, FSWAVERAGE = Load current/(VIN – Vout) Why be concerned with performance at loads <10% of max ...
![[13] Ankit Agarwal and Vineeta Agarwal, “Delta Modulated](http://s1.studyres.com/store/data/002534369_1-52427a79ed7cb423f80b59e657a2fe9c-300x300.png)
[13] Ankit Agarwal and Vineeta Agarwal, “Delta Modulated
... delta modulation [12], [13]. Delta modulation offers a number of advantages such as a simple electronic circuitry without external feedback from a high power circuit, inherent constant volts per hertz control for a preset frequency range, smooth transitions between the constant volt per hertz and th ...
... delta modulation [12], [13]. Delta modulation offers a number of advantages such as a simple electronic circuitry without external feedback from a high power circuit, inherent constant volts per hertz control for a preset frequency range, smooth transitions between the constant volt per hertz and th ...
Acoustic Coupler for Acquisition of Coronary Artery Murmurs
... The aim of the study was to design and evaluate a coupler/microphone system for recording weak murmurs from stenoses in the coronar artery. The suggested design is based on the use of a high quality microphone, coupled to the chest through a small air cavity. Since the determination of the exact fre ...
... The aim of the study was to design and evaluate a coupler/microphone system for recording weak murmurs from stenoses in the coronar artery. The suggested design is based on the use of a high quality microphone, coupled to the chest through a small air cavity. Since the determination of the exact fre ...
A unique, low- voltage, source- coupled J-FET VCO
... low supply voltage, the source resistor is substituted by a series connection of a fixed 22Ω resistor and a source coil with a frequency-matched inductance value. This increases the DC current via the JFETs and, in turn, increases the amplification factor of both transistors. For higher supply volta ...
... low supply voltage, the source resistor is substituted by a series connection of a fixed 22Ω resistor and a source coil with a frequency-matched inductance value. This increases the DC current via the JFETs and, in turn, increases the amplification factor of both transistors. For higher supply volta ...
Laser Listener
... - The laser reflected approximately 60% of its power - Sinusoid waves detected clearly with minimal noise on the lower voltage peaks if the amplifier is saturated - Scattering of the laser beam doesn’t affect the phototransistor’s ability to correctly sense signal amplitudes ...
... - The laser reflected approximately 60% of its power - Sinusoid waves detected clearly with minimal noise on the lower voltage peaks if the amplifier is saturated - Scattering of the laser beam doesn’t affect the phototransistor’s ability to correctly sense signal amplitudes ...
Heterodyne
Heterodyning is a radio signal processing technique invented in 1901 by Canadian inventor-engineer Reginald Fessenden, in which new frequencies are created by combining or mixing two frequencies. Heterodyning is used to shift one frequency range into another, new one, and is also involved in the processes of modulation and demodulation. The two frequencies are combined in a nonlinear signal-processing device such as a vacuum tube, transistor, or diode, usually called a mixer. In the most common application, two signals at frequencies f1 and f2 are mixed, creating two new signals, one at the sum f1 + f2 of the two frequencies, and the other at the difference f1 − f2. These new frequencies are called heterodynes. Typically only one of the new frequencies is desired, and the other signal is filtered out of the output of the mixer. Heterodynes are related to the phenomenon of ""beats"" in acoustics.A major application of the heterodyne process is in the superheterodyne radio receiver circuit, which is used in virtually all modern radio receivers.