Phase-locked loop

An example digital divider (by 4) for use in the feedback path of a multiplying PLL

A phase-locked loop or phase lock loop (PLL) is a control system that generates an output signal whose phase is related to the phase of an input signal. While there are several differing types, it is easy to initially visualize as an electronic circuit consisting of a variable frequency oscillator and a phase detector. The oscillator generates a periodic signal. The phase detector compares the phase of that signal with the phase of the input periodic signal and adjusts the oscillator to keep the phases matched. Bringing the output signal back toward the input signal for comparison is called a feedback loop since the output is "fed back" toward the input forming a loop.

单词	Phase Locked Loop
释义	Phase Locked Loop 英语百科 Phase-locked loop A phase-locked loop or phase lock loop (PLL) is a control system that generates an output signal whose phase is related to the phase of an input signal. While there are several differing types, it is easy to initially visualize as an electronic circuit consisting of a variable frequency oscillator and a phase detector. The oscillator generates a periodic signal. The phase detector compares the phase of that signal with the phase of the input periodic signal and adjusts the oscillator to keep the phases matched. Bringing the output signal back toward the input signal for comparison is called a feedback loop since the output is "fed back" toward the input forming a loop.
随便看	Guayaguayare的意思 Guayaki的意思 Guayalejo的意思 Guayalejo, R.的意思 Guayama的意思 Guayama, Dist. de的意思 Guayanesin的意思 Guayanilla的意思 Guayanovac的意思 Guayapo, R.的意思 Guayaquil的意思 Guayaquil Conference的意思 Guayaquil, G.de的意思 Guayaquil, Gulf of的意思 Guayaquilite的意思 guayaquillite的意思 Guayaquil的意思 Guayas的意思 Guayasamin的意思 Guayas, Prov.de的意思 Guayas, R.的意思 Guayas River的意思 Guayatayoc, L.de的意思 Guayava的意思 Guaycuru的意思

Phase Locked Loop

Phase-locked loop