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designs
designs

... output of four devices without the added loss and cost of power splitters and combiners. Motorola MRF150 RF power FET makes it possible to parallel two or more devices at relatively high power levels. This technique is considered impractical for bipolar transistors due to their low input impedance. ...
Lab6_KirchhoffsRules
Lab6_KirchhoffsRules

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Optical PLL for homodyne detection
Optical PLL for homodyne detection

... detected BPSK signal (Real(In1)) – measured from the upper branch of the balanced detector (I(t)) Represents the imaginary part of the detected BPSK signal (Imag(In1)) – measured from the lower branch of the balanced detector (Q(t)). Under ideal conditions, this signal should be zero (the phase modu ...
Ohm`s Law Worksheet
Ohm`s Law Worksheet

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Theoretical Design
Theoretical Design

... the voltage needed to power the silicon photomultiplier (SiPM). Leads connect the voltage source to the bias voltage of the SiPM and two resistors aligned as a voltage divider. The resistor value ratio needed to attain the correct output voltage of 15V for the amplifiers was calculated to be R1= 4/5 ...
THE CASCODE AMPLIFIER: A common-gate (common
THE CASCODE AMPLIFIER: A common-gate (common

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Linux+ Guide to Linux Certification
Linux+ Guide to Linux Certification

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Voltage - Madison County Schools
Voltage - Madison County Schools

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Series Circuits
Series Circuits

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SNA-386 DC-3  GHz,  Cascadable GaAs  MMIC  Amplifier Product Description
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FM radio circuit
FM radio circuit

... The TDA7000 is a monolithic integrated circuit for mono FM portable radios, where a minimum on peripheral components is important (small dimensions and low costs). The IC has an FLL (Frequency-Locked-Loop) system with an intermediate frequency of 70 kHz. The i.f. selectivity is obtained by active RC ...
Lab 1: Common-source Amplifiers Introduction Preparation
Lab 1: Common-source Amplifiers Introduction Preparation

... reading of the signal generator to be correct. Most of the signal generators have a 50-Ω output impedance and the voltage reading is correct only if its load is 50 Ω. You will need this 50-Ω termination many times in future labs when you use a signal generator although it won’t be explicitly shown i ...
Solving Large Scale Linear Systems (in parallel)
Solving Large Scale Linear Systems (in parallel)

Step response of an RLC series circuit - ECE
Step response of an RLC series circuit - ECE

... The internal resistance of the function generator will affect the damping of an RLC circuit to which it is connected. Check the resistance in the following way: a- With a sine wave output, set the open circuit voltage to some convenient value, say 1V. b- Connect a pure variable resistance load (pote ...
Kirchhoff`s Laws - Edvantage Science
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... A parallel circuit contains more than one pathway or branch for the electrons travel through as they make their way through the circuit. The current first splits at junction point C, to travel through one of 3 branches and then rejoins at junction point D. There is a conservation of electrons going ...
Trip Circuit Supervision for M
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... 1. Under I/O Configuration, the Input #1 setting must be configured as “General Input”. ...
OHM`S LAW LAB
OHM`S LAW LAB

... The results showed that the reactive component had its own voltage drop that was out of phase with the resistive component, although the circuit current was the same in all parts of the circuit. In an RLC series circuit, the same concepts apply. However, when XL and XC are both in the circuit, the o ...
Circuit Elements - sources
Circuit Elements - sources

ELC191 Study Guide 2rev3
ELC191 Study Guide 2rev3

... Electrons have a negative charge. The outer shell or orbit is called the valence shell. The valence shell will never have more than 8 electrons. A conductor will have 1, 2, or 3 electrons. A semi-conductor will have 4, 5, or 6 electrons. An insulator will have 7 or 8 electrons. Conductors allow the ...
DC Circuits - UCF Physics
DC Circuits - UCF Physics

... • To solve we need what is called a particular solution as well as a general solution. • We often do this by creative “guessing” and then matching the guess to reality. • You may or may not have studied this topic … ...
Phase Locked Loop Basics
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... Normally the loop filter is operation of this circuit is designed to match the typical of all phase locked characteristics required by the loops. It is basically a feedback application of the PLL. If the control system that controls the PLL is to acquire and track a phase of a voltage controlled sig ...
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6.2.6 Transistors

... •Considered by some to be the greatest invention of the 20th century •Invented at Bell Laboratories in 1947 •It is a crucial component in almost all modern electronic devices •Engineers are working toward making them smaller so that more can be placed on computer chips. Many today are already smalle ...
Transistors - Eisenhower
Transistors - Eisenhower

... •Considered by some to be the greatest invention of the 20th century •Invented at Bell Laboratories in 1947 •It is a crucial component in almost all modern electronic devices •Engineers are working toward making them smaller so that more can be placed on computer chips. Many today are already smalle ...
6.2.6 Transistors
6.2.6 Transistors

... •Considered by some to be the greatest invention of the 20th century •Invented at Bell Laboratories in 1947 •It is a crucial component in almost all modern electronic devices •Engineers are working toward making them smaller so that more can be placed on computer chips. Many today are already smalle ...
Electrical Circuit Ananlysis - Jordan University of Science and
Electrical Circuit Ananlysis - Jordan University of Science and

... Abilty to solve for the transient response for RL, RC and RLC circuits. Analyze the AC steady state behavior of a circuit by solving differential equations by classical methods. Determine the frequency response of a circuit. Determine the power supplied and distributed in three-phase systems, perfor ...
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Regenerative circuit



The regenerative circuit (or regen) allows an electronic signal to be amplified many times by the same active device. It consists of an amplifying vacuum tube or transistor with its output connected to its input through a feedback loop, providing positive feedback. This circuit was widely used in radio receivers, called regenerative receivers, between 1915 and World War II. The regenerative receiver was invented in 1912 and patented in 1914 by American electrical engineer Edwin Armstrong when he was an undergraduate at Columbia University. Due partly to its tendency to radiate interference, by the 1930s the regenerative receiver was superseded by other receiver designs, the TRF and superheterodyne receivers and became obsolete, but regeneration (now called positive feedback) is widely used in other areas of electronics, such as in oscillators and active filters. A receiver circuit that used regeneration in a more complicated way to achieve even higher amplification, the superregenerative receiver, was invented by Armstrong in 1922. It was never widely used in general receivers, but due to its small parts count is used in a few specialized low data rate applications, such as garage door openers, wireless networking devices, walkie-talkies and toys.
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