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Definition of "Wien bridge oscillator" |
(1) an oscillator where the Wien bridge is used in the amplifier feedback. The frequently used circuit includes equal resistors and equal capacitors in reactance branches of the bridge; this arrangement provides easy continuous tuning of the oscillation frequency. Tuning of the bridge providing high indirect frequency stability of oscillations is easily combined with application of an operational amplifier as oscillator active element. The circuit of amplitude control is also easily attached. All these advantages provide wide spread ofWien bridge oscillators in high and low radio frequency ranges of applications. |
Definition of "Wien-Bridge Oscillator" |
A type of oscillator that generates a sine-wave. The example to the right shows a Wien-Bridge Oscillator using a lamp as negative feedback. Also refer to the description of a Sine Wave Oscillator Circuit, which includes another schematic. / A wien-bridge oscillator is a type of electronic oscillator that generates sine waves. It can generate a large range of frequencies. The oscillator is based on a bridge circuit originally developed by Max Wien in 1891. The bridge comprises four resistors and two capacitors. The oscillator can also be viewed as a positive gain amplifier combined with a bandpass filter that provides positive feedback. / In cryptography, a key is a piece of information that determines the functional output of a cryptographic algorithm or cipher. |
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