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A regenerative circuit is an amplifier circuit that employs positive feedback (also known as regeneration or reaction). [ 1 ] [ 2 ] Some of the output of the amplifying device is applied back to its input to add to the input signal, increasing the amplification. [ 3 ]
Regenerative amplifier can also operate at Radio Frequency, [1] using the feedback between the transistor's source and gate to transform a capacitive impedance on the transistor's source to a negative resistance on its gate. Compared to voltage-gated amplifiers, this "negative resistance amplifier" will only require a tiny amount of power to ...
regenerative circuit A circuit that employs positive feedback; can be an amplifier or an oscillator. relaxation oscillator An oscillator that relies on an active device periodically changing state; such oscillators usually produce a square-wave or sawtooth waveform, different from the approximately sinusoidal waveshape of a harmonic oscillator ...
One of the windings of the transformer had a variable capacitor connected across it to make a tuned circuit. A variable capacitor (or sometimes a variable coupling coil called a variometer) was used, with a knob on the front panel to tune the receiver. The RF stages usually had identical circuits to simplify design.
He patented the regenerative circuit in 1914, the superheterodyne receiver in 1918 and the super-regenerative circuit in 1922. [13] Armstrong presented his paper, "A Method of Reducing Disturbances in Radio Signaling by a System of Frequency Modulation", (which first described FM radio) before the New York section of the Institute of Radio ...
Closed-circuit video played to the jury on Monday showed how the incident unfolded in the administrative building of the home around 5 a.m. on May 17, 2023. In the witness box, White was asked to ...
Credit - Denis Novikov—iStock/Getty Images. I f you’ve been scrolling too long on social media, you might be suffering from “brain rot,” the word of 2024, per the publisher of the Oxford ...
The idea of positive feedback was already current in the 1920s with the introduction of the regenerative circuit. [11] Friis & Jensen (1924) described regeneration in a set of electronic amplifiers as a case where the "feed-back" action is positive in contrast to negative feed-back action, which they mention only in passing. [12]