taajuuskertoimen

Taajuuskerroin is a Finnish term that translates to "frequency multiplier" in English. It refers to a type of electronic circuit or device that takes an input signal at a certain frequency and produces an output signal at a multiple of that input frequency. This is achieved through non-linear processes within the circuit.

The most common implementation of a frequency multiplier is a diode-based circuit. When a sinusoidal input signal is applied to a diode, it acts as a non-linear element, distorting the waveform. This distortion introduces harmonics of the original frequency. By using filters, one can then select and amplify a desired harmonic, effectively creating a signal at a multiple of the input frequency. Other methods exist, including those employing transistors or specialized integrated circuits.

Frequency multipliers are valuable in various electronic applications. They are frequently used in radio transmitters to generate higher frequencies from a stable lower-frequency oscillator. This is often more efficient and cost-effective than directly generating very high frequencies. They also find use in frequency synthesis, where precise and multiple frequencies are required for communication systems or test equipment. In some cases, they can be used to generate specific sub-harmonics as well, although the term typically implies multiplication. The multiplication factor can vary depending on the circuit design and the number of stages used.