Vim li cas siab -qib relay xeem teeb tseem siv linear power amplifiers es tsis txhob sib sib zog nqus (chav kawm-D) amplifiers?

Lub amplifier yog lub plawv ntawm lub relay xeem teeb: lub relay txiav txim siab ntawm lub waveform nws tau txais, yog li kev ncaj ncees ntawm lub waveform txiav txim seb qhov kev ntsuam xyuas puas ntseeg tau. Linear amplifiers reproduce tus siv sine yoj nrog tsawg heev tag nrho harmonic distortion, vim hais tias cov zis transistor ua hauj lwm nyob rau hauv nws linear cheeb tsam - tsis muaj switching ripple mus lim tawm.

Sine{0}}yoj purity -linear theem xa ib tug huv si 50/60 Hz sine yoj nrog tsawg harmonic cov ntsiab lus, ze rau lub waveform lub relay pom nyob rau hauv lub tiag tiag zog system.

Precision ntawm qhov tam sim no tsawg heev -qhov tseem ceeb sib txawv. khaws cov kev ntsuam xyuas ntawm kev tiv thaiv rhiab heev (xws li lub ntiaj teb- cov ntsiab lus txhaum cai nyob ze 0.01 A) xav tau qhov tseeb, ruaj khov ntawm qib milliampere. Ib qho kev hloov pauv amplifier's mem tes-width modulation ua suab nrov thiab ntxhib ntawm cov amplitudes uas tsis tshua muaj, thaum lub suab amplifier nyob twj ywm huv thiab raug.

Stability nyob rau hauv load -linear designs zam lub siab inductive loads ntawm relay mus ncig teb chaws coils thiab tam sim no circuits yam tsis muaj oscillation los yog kev tiv thaiv mus txawv tebchaws -outs switching designs tuaj yeem nthuav tawm.

Kev lag luam - tawm -linear amplifiers hnyav dua thiab ua haujlwm tsawg dua; switching amplifiers yog compact thiab zog-ntau tab sis cuam tshuam waveform purity thiab tsawg-tam sim no precision. Rau kev ntsuas kev tiv thaiv, qhov tseeb tshaj qhov hnyav.