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New Method to Improve The Gain Ripple in Single and Double
New Method to Improve The Gain Ripple in Single and Double

Design Document v0.95 - WordPress@UP
Design Document v0.95 - WordPress@UP

... input will be an analog line level audio signal connected via a standard 3.5mm headphone jack. This signal will enter the microcontroller where it will be processed and filtered to separate the various frequencies in the audio signal. Implementing the filters digitally allows more flexibility in how ...
Noise in relaxation oscillators
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... When the capacitor voltage crosses one of the two trigger points at its input, the sensor changes state. The sensor has a vanishingly small gain, while the capacitor voltage is between these trigger points; but as a trigger point is approached, the operating points of the active devices in the senso ...
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TPA3113D2 数据资料 dataSheet 下载

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Triple Differential Driver With Sync-On-Common-Mode AD8134
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Inductors - La Salle University
Inductors - La Salle University

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Laser Guitar with Instructional LED Display

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... SB4U Audible (Sounder) Detector Base The SB4U is designed to add an audible output function to compatible detectors. The base can operate as an independent local alarm, or as part of a zone or system alarm with synchronized audible output. Depending on the system supporting the device loop, the bas ...
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... mixers. The receiver uses the first mixer, U1, along with a variable crystal oscillator (VCXO), comprising X8, X9 and associated components, to convert a 30 kHz wide segment of the 40m HF amateur band to the IF frequency of 8.467 MHz. The converted signal is filtered in a six-pole crystal ladder fil ...
AD8398A 数据手册DataSheet 下载
AD8398A 数据手册DataSheet 下载

... performance due to a change in the stresses exerted on the die by the package. Exceeding this limit for an extended period ...
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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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