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^ l -vwx l
^ l -vwx l

... with an indicator to show the number of turns nator is provided for comparing the received from its initial position. frequency with the oscillator frequency generated The present invention relates to an arrange- ` in the receiver and the motor is connected to 25 ment for overcoming the above disadv ...
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Physics B Midterm Study Guide
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J. Sanz-Robinson, W. Rieutort-Louis, N. Verma, S. Wagner, and J.C. Sturm, "A Full-wave Bridge Rectifier Based on Thin-film Amorphous-silicon Schottky Diodes for Wireless Power and Signal Transfer in Systems-on-plastic", MRS Meeting (APR 2012).
J. Sanz-Robinson, W. Rieutort-Louis, N. Verma, S. Wagner, and J.C. Sturm, "A Full-wave Bridge Rectifier Based on Thin-film Amorphous-silicon Schottky Diodes for Wireless Power and Signal Transfer in Systems-on-plastic", MRS Meeting (APR 2012).

... ABSTRACT BODY: As large area electronic (LAE) systems incorporate increased functionality, it is desirable to transmit signals between adjacent plastic electronic sheets through near-field wireless coupling based on inductors and capacitors. Eliminating wired contacts can enable increased system sca ...
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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 Due partly to its tendency to radiate interference, by the 1930s the regenerative receiver was superseded by other receiver designs, the TRF and superheterodyne receivers and became obsolete, but regeneration (now called positive feedback) is widely used in other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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