Abahlinzeki bedivayisi yempendulo yamandla bakukhumbuza ukuthi ukunikezwa kwamandla kuyithuluzi elisizayo lokushaja izinto ezisebenza ngogesi, kodwa abantu abaningi abaqondi ukuthi yini ukunikezwa kwamandla okuguquguqukayo. Ngokuqhubeka kwezikhathi nokuvuselelwa kwezinto zikagesi, izinto ezisizayo zihlala zishintsha. Ukunikezwa kwamandla okuvama okuguquguqukayo kuguqula amandla e-AC kusuka kumapayipi amakhulu ngokuguqulwa kwe-AC → DC → AC, futhi kukhiphe igagasi le-sine elimsulwa elinefrikhwensi yokuphumayo elungisekayo kanye ne-voltage ngaphakathi kwebanga elithile. Ihlukile kusilawuli sesivinini esishintshashintshayo esisetshenziselwa ukulawulwa kwesivinini semoto, futhi ihlukile kugesi ojwayelekile we-AC. Izici zokunikezwa kwamandla kagesi e-AC okufanelekile ukuzinza, ukuzinza kwe-voltage, ukumelana kwangaphakathi okuyiziro, kanye ne-wave wave voltage ye-sine wave (ngaphandle kokuhlanekezelwa). Ukunikezwa kwamandla okuguquguqukayo okuguquguqukayo kusondele kakhulu kugesi ofanele wokuxhumana nomphakathi. Ngakho-ke, izifunda ezithuthuke kakhulu ngokwamasiko ezithuthukisiwe zisebenzisa ukunikezwa kwamandla okuguquguqukayo njengokuphakelwa kukagesi okujwayelekile, ukuze kuhlinzekwe ngendawo enhle kakhulu yenethiwekhi yokuphakelwa kwamandla ezinkampanini zikagesi futhi zihlole ukusebenza komkhiqizo wobuchwepheshe wezinto zikagesi. Njengoba kwaziwa kahle, kunezinhlobo ezimbili eziyinhloko zamandla kagesi aguquguqukayo asuselwa esakhiweni sawo: uhlobo lokukhulisa umugqa kanye nohlobo lokushintsha lwe-SPWM.
Isiguquli sefrikhwensi sakhiwe ngamasekhethi afana ne-AC eqondile yamanje kanye ne-AC (igagasi elishintshiwe), futhi igama laso elijwayelekile kufanele libe isilawuli sesivinini sokuguqula imvamisa. I-voltage waveform yayo iwukubhoboza kwegagasi lesikwele elinezingxenye eziningi ze-harmonic zokuhleleka okuphezulu, futhi amandla kagesi kanye nemvamisa kuyahlukahluka ngokulinganayo esikhundleni sokulungiswa ngokuhlukana, okungakwazi ukuhlangabezana nezidingo zokunikezwa kwamandla kagesi we-AC. Empeleni, ayikwazi ukusetshenziswa njengomthombo wamandla futhi ngokuvamile isetshenziselwa ukulawulwa kwesivinini sezigaba ezintathu zama-asynchronous motors.
Umjikelezo wonke wokunikezwa kwamandla okuvama okuguquguqukayo uqukethe izingxenye ezifana nokushintshisana kolwazi, i-AC yamanje, nokuhlunga. Ngakho-ke, amandla kagesi kanye namagagasi esiginali amanje ewakhiphayo amagagasi e-sine ahlanzekile, alula kakhulu ukusondela ohlelweni olufanele lokuphakelwa kwamandla e-AC emphakathini.
Umgomo kanye nomsebenzi oyinhloko wesiguquli sefrikhwensi: Isiguquli sefrikhwensi iyithuluzi lokulawula amandla kagesi elisebenzisa umphumela wokucisha wemishini ye-semiconductor yamandla ukuguqula ukunikezwa kwamandla kagesi kube enye ifrikhwensi. Ingahlukaniswa nge-AC-AC frequency converter kanye ne-AC-DC-AC frequency converter. I-AC-AC frequency converter ingaguqula ngokuqondile amandla e-AC abe amandla e-AC anefrikhwensi eguquguqukayo kanye ne-voltage; Isiguquli sefrikhwensi ye-AC-DC-AC siqale silungise amandla e-AC sibe amandla e-DC sisebenzisa isilungisisi, bese siguqula le DC yamanje ibe amandla e-AC anefrikhwensi eguquguqukayo kanye ne-voltage ngesiguquli.