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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 ]
The regenerative receiver also had its heyday at the time where adding an active element (vacuum tube) was considered costly. In order to increase the gain of the receiver, positive feedback was used in its single RF amplifier stage; this also increased the selectivity of the receiver well beyond what would be expected from a single tuned circuit.
Regenerative braking has a similar energy equation to the equation for the mechanical flywheel. Regenerative braking is a two-step process involving the motor/generator and the battery. The initial kinetic energy is transformed into electrical energy by the generator and is then converted into chemical energy by the battery.
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]
Regeneration buffer (or regen buffer for short), a kind of video memory buffer in computer video hardware; Regenerative capacitor memory, a type of computer memory used in the Atanasoff–Berry computer; Regenerative circuit, a circuit in electronics that allows a signal to be amplified many times
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 ...
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In contrast, an optical amplifier can amplify all of the wavelengths in a single device and works for all modulation formats. An amplifier does not provide the regeneration ability of a repeater, but loss, rather than distortion is generally the limiting factor in the design of an optical communications system.