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Chapter 21 - La Sierra University
Chapter 21 - La Sierra University

... electronics fundamentals circuits, devices, and applications THOMAS L. FLOYD DAVID M. BUCHLA ...
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投影片 1

application note uc3842/3/4/5 provides low-cost current
application note uc3842/3/4/5 provides low-cost current

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... PC modem, phone lines; TV cable modems ...
AD829 Data Sheet
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... capacitance. Table I and the graph of Figure 28 show the optimum compensation capacitance and the resulting slew rate for a desired noise gain. For gains between 1 and 20, CCOMP can be chosen to keep the small signal bandwidth relatively constant. The minimum gain which will still provide stability ...
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Gilbert Cell
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IC of a low-dispersion timing discriminator, intended to
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... We pay a real person to do it like they did in the golden age of gear. We do not have most of our work done in China only to do final assembly in America and then call it made in USA. We do not use surface mount components or ribbon cables that have been recently developed to shrink the size and bui ...
Ohm`s and Kirchhoff`s Circuit Laws Abstract Introduction and Theory
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A Ground Loop Primer - Wilkerson Instrument

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1. study of pattern generator and its use

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... circuit that provides a varying output signal (typically of square-wave or triangular-wave form) whose frequency can be adjusted over a range controlled by a dc voltage. The VCO is commonly used to generate clock in phase locked loop circuit. Based on the control voltage, the VCO oscillates at a hig ...
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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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