Ukunikezwa kwamandla okulungisa imvamisa ephezulu kwe-IGBT

Ukubuka konke komkhiqizo: Ukuhlinzekwa kwamandla okushintsha imvamisa ephezulu kwe-IGBT kuyivayisi yokuhlinzeka kwamandla kwe-DC yesizukulwane esilandelayo esebenzisa i-insulate d-gate bipolar transistor (IGBT) njengengxenye yayo yamandla eyinhloko futhi isuselwa kubuchwepheshe obukhulu be-PWM pulse-width modulation. Umgomo oyisisekelo wokusebenza imi kanje: Amandla wezigaba ezintathu e-AC alungiswa futhi ahlangiswe ukukhiqiza amandla ama-DC abushelelezi, okube eseguqulwa kube yi-AC-frequency ephezulu (imvamisa i-10 kHz kuya ku-50 kHz) yi-IGBT egcwele ibhuloho. Ngemuva kokunyuswa phezulu noma phansi nokuhlukaniswa yi-transformer enemvamisa ephezulu, okukhiphayo ekugcineni kulungiswa futhi kuhlungwe ukuhlinzeka nge-DC voltage ezinzile noma yamanje. Uma kuqhathaniswa nezimpahla zamandla zendabuko ezilawulwa yi-thyristor, Ukunikezwa kwamandla okushintsha imvamisa ephezulu kwe-IGBT kwandisa imvamisa yokusebenza kusuka kumvamisa womugqa.