How a Quadratic Oscillator Works
An oscillator is an electric circuit that has a DC (direct current) input and creates the waveform necessary for a specific use. Each waveform is used for a different application, and there are many ways to generate these waves.
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Oscillator Basics
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All oscillators are designed to create a waveform that a specific device can use. Every oscillator must have an active device such as a transistor, vacuum tube or even a crystal. A random noise or electrical output is created in the primary device, then amplified and fed back into the circuit to be re-amplified. This continues until equilibrium is reached and a specific wave is created.
The Math
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It is possible to define the specific wave pattern that you want an oscillator to create with a mathematical equation. In basic trigonometry you learn that the sin wave is a smooth up and down wave going between 1 and -1. The waves needed for electronic devices, however, are much more complicated, requiring complex trigonometric formulas. However, you can also define a wave with a quadratic equation.
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Uses of Oscillators
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You can use oscillators in a wide variety of electronic devices, from televisions and radios to stun guns. Depending on the specific wave pattern needed, the wave form may be generated by a sinusoidal or quadratic wave.
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References
Resources
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