Isixhobo esidityanisiweyo samandla esandi kubhekiswa kuso njengempumelelo esetiweyo. Umsebenzi wesikhulisi esidityanisiweyo kukwandisa amandla esignali yombane ebuthathaka ethunyelwe kwinqanaba lesiphaluka esingaphambili, kwaye ivelise indawo yangoku enkulu ngokwaneleyo ukuqhuba isithethi ukugqibezela uguquko lwe-electro-acoustic. Isikhulisi esidityanisiweyo sisetyenziswa ngokubanzi kwiisekethi ezahlukeneyo zokukhulisa amandla ombane ngenxa yesiphaluka sayo esilula kunye nokulungisa ingxaki.

Iiseti eziqhelekileyo ezisetyenziswayo zibandakanya i-LM386, TDA2030, LM1875, LM3886 kunye nezinye iimodeli. Isiphumo samandla esihlanganisiweyo sesikhulisi ukusuka kumakhulu ee-milliwatts (mW) ukuya kumakhulu ee-watts (W). Ngokwamandla okuphuma, inokwahlulahlulwa ibe ngama-amplifiers amancinci, aphakathi kunye aphezulu; ngokwemeko yokusebenza kwetyhubhu yokukhulisa amandla, inokwahlulwa-hlulwa ibe yi-Class A (A Class), Class B (Class B), Class A and B (Class AB), Class C (Class C) kunye Class D (Class D). Izikhulisi zamandla zodidi A zinokugqwetha okuncinci, kodwa ukusebenza ngokusezantsi, malunga neepesenti ezingama-50, kunye nelahleko enkulu yamandla. Ngokuqhelekileyo zisetyenziselwa izixhobo zasekhaya eziphezulu. Izikhulisi zamandla zeklasi B zinokusebenza okuphezulu, malunga neepesenti ezingama-78, kodwa into engalunganga kukuba banomdla wokugqwetha. Izikhulisi zodidi A no-B zinezibonelelo zomgangatho wesandi elungileyo kunye nokusebenza ngokukuko kwee-amplifiers zeklasi, kwaye zisetyenziswa kakhulu kwiinkqubo zekhaya, ezobuchwephesha kunye nezomculo. Zimbalwa izinto zokukhulisa amandla eCandelo C kuba sisandisi sombane esinokugqwetha okuphezulu kakhulu, okulungele kuphela iinjongo zonxibelelwano. Iklasi D yesikhulisi samandla esikwabizwa ngokuba sisandisi sombane sedijithali. Uncedo kukuba ukusebenza kokona kuphezulu, umbane unokuncitshiswa, kwaye phantse akukho bubushushu buveliswayo. Ke ngoko, akukho mfuneko yeradiyetha enkulu. Umthamo kunye nomgangatho womzimba uncitshiswe kakhulu. Kwithiyori, ubugqwetha buphantsi kwaye umgca ulungile. Umsebenzi wolu hlobo lwesikhulisi samandla luyinkimbinkimbi, kwaye ixabiso alibizi.

Isikhulisi samandla kubhekiswa kuso njengesikhulisi samandla ngokufutshane, kwaye injongo yaso kukubonelela ngomthwalo omkhulu wokuqhuba ngoku ukuze ufezekise ukukhulisa amandla. Iklasi D yokukhulisa amandla isebenza kwimeko yokuvalwa. Kwithiyori, ayifuni quiescent yangoku kwaye inokusebenza okuphezulu.

Isiginali yesandi yokufakelwa kwesandi kunye nomqondiso wokutswina onxantathu onamaxesha aphezulu kakhulu zilungelelaniswe ngumthelekisi ukuze afumane umqondiso wokumodareyitha we-PWM onomjikelo womsebenzi wakhe ulingana nobungakanani besiginali. Umqondiso wokumodareyitha kwe-PWM uqhuba ityhubhu yamandla okuphuma ukuze isebenze kwimeko yokucima. Iziphumo zokuphela kwetyhubhu zifumana umqondiso wokuphuma kunye nomjikelo womsebenzi rhoqo. Ubungakanani besiginali yemveliso kukuhambisa umbane kwaye inamandla okuqhuba ngoku. Emva kokumodareyitha komqondiso, isignali yemveliso iqulethe zombini isignali yokufaka kunye nezinto ezisisiseko zontlantlukwano olutshintshiweyo, kunye nokuhambelana kwazo okuphezulu kunye nokudityaniswa kwazo. Emva kokucoca i-LC yokupasa okuphantsi, izinto ezihamba rhoqo kwisiginali yokuphuma ziyahluzwa, kunye nesiginali esisezantsi esinexesha elifanayo kunye nokuphakama njengoko isiginali yentsusa yoqobo ifunyenwe kumthwalo.