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Introduction to Multisim – Part 1 Prepared by: Mohamad Eid
Introduction to Multisim – Part 1 Prepared by: Mohamad Eid

Examples of Solved Problems for Chapter 3, 5, 6, 7
Examples of Solved Problems for Chapter 3, 5, 6, 7

... and any number of AND, OR, and NOT gates. Solution: Figure 7.84 gives a possible circuit. The value of each coin is represented by a corresponding five-bit number. It is added to the current total, which is held in register S. The required output is Z = s5 + s4 s3 s2 s1 The register is clocked by the ...
XR5486E 数据资料DataSheet下载
XR5486E 数据资料DataSheet下载

... XR5486E-XR5488E is a family of advanced RS-485/RS-422 transceivers. Each contain one driver and one receiver. The XR5488E is a half-duplex design while the XR5486E and XR5487E are full-duplex designs. All devices operate from a single 5.0V power supply. These devices feature failsafe circuitry that ...
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Section J7: FET Amplifier Design
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... The expressions for amplifier characteristics developed in the previous section will now be used in the design process. Remember that for design, it is fundamentally important to understand what it is that you are designing by defining the operational conditions, any constraints (physical or operati ...
Lecture 10 - BJT Introduction
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TPA2001D2 数据资料 dataSheet 下载

... settings, smaller packaging, and fewer external components. The most significant advancement with this device is its modulation scheme that allows the amplifier to operate without the output filter. Eliminating the output filter saves the user approximately 30% in system cost and 75% in PCB area. Th ...
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OPA4872-EP 数据资料 dataSheet 下载

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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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