Abahlinzeki bezesekeli ze-frequency converter bakukhumbuza ukuthi umsebenzi oyinhloko weyunithi yebhuleki ukuxhuma i-resistor ye-brake, ukuqinisekisa ukusebenza okuphephile kwesiguquli se-frequency ngokusebenzisa isiguquli samanje esibuyiswayo ngenxa yokusebenza okuphuthumayo kwebhuleki.
Iyunithi yamabhuleki empeleni iyi-chopper, enquma okokufaka nokuphumayo kwesimo sokubhuleka ngokusekelwe enanini lamandla kagesi kulayini webhasi le-DC. Ngesikhathi esifanayo, iyunithi ye-brake ingakwazi ukuqapha ngokuphumelelayo ukudlula kwamanje phezu kwe-kinetic resistor, iqinisekise ukusebenza kwayo okujwayelekile nokusebenza okuphephile. Ngaphezu kwalokho, iyunithi yamabhuleki nayo iyasiza ekusebenziseni ugesi. Lapho i-asynchronous motor isesimweni sokukhiqiza amabhuleki, amandla emishini yesistimu aguqulwa abe ugesi futhi anqwabelene engxenyeni ye-DC ye-inverter, okuholela ekwenyukeni kwe-voltage ye-DC.
Ngaphezu kwalokho, ukusetshenziswa kweyunithi ye-brake kufakwe ohlelweni lwempendulo yamandla avuselelekayo wemodi yebhasi ye-DC eyabelwe, ngale ndlela, amandla avuselelekayo akhiqizwa ibhuleki angasetshenziswa ngokugcwele, kokubili konga ugesi kanye nokucubungula ugesi ovuselelekayo. Kuzinhlelo zokusebenza ezingokoqobo, amasistimu okushayela okuningi ayabiza, anegama elincane, futhi avame ukusetshenziswa ezimakethe ezisezingeni eliphezulu njengokwenza insimbi nephepha.
Kafushane, iyunithi yamabhuleki idlala indima ebalulekile ohlelweni lokuguqulela ama-frequency, hhayi kuphela ukuqinisekisa ukusebenza okuphephile kwemishini, kodwa futhi nokwenza ngcono ukusebenza kahle kwamandla.