Isimiso se-phase modulator.
I-phase modulator iyisekethe lapho isigaba sesithwali silawulwa khona yisignali eguquliwe. Kunezindlela ezimbili eziyinhloko zokuguqulwa kwesigaba se-sine wave: ukuguqulwa kwesigaba okuqondile kanye nokuguqulwa kwesigaba esingaqondile. Ukuguqulwa kwesigaba esiqondile ukushintsha ngqo amapharamitha e- resonant loop ngokuguqula isignali, ukuze kukhiqizwe ukushintsha kwesigaba lapho isignali yesithwali idlula ku-resonant loop bese yakha i-phase modulation wave. Ukuguqulwa kwesigaba esingaqondile kuqala ukuguqula i-amplitude yegagasi eliguquliwe, bese uguqula ushintsho lwe-amplitude lube ushintsho lwesigaba, ukuze kufezwe ukuguqulwa kwesigaba.
Ukuqashelwa okuqondile kokuguqulwa kwesigaba esiqondile kanye nokuguqulwa kwesigaba esingaqondile
Ukuguqulwa kwesigaba esiqondile: ukusebenzisa isignali eguquliwe ukushintsha ngqo amapharamitha e-resonant loop, ukuze isignali yenkampani ishintshe ngesigaba se-resonant loop. Le ndlela ilula futhi iqondile, kodwa idinga ukulawulwa okunembile kwamapharamitha esekethe ye-resonant.
Ukuguqulwa kwesigaba okungaqondile: i-amplitude yegagasi eliguquliwe iyaguqulwa kuqala, bese ushintsho lwe-amplitude luguqulwa lube ushintsho lwesigaba. Le ndlela yadalwa ngu-Armstrong ngo-1933 futhi ibizwa ngokuthi indlela yokuguqulwa kwe-Armstrong.
I-pulse phase modulator: I-pulse phase modulator ishintsha isigaba sokuphuma kwe-pulse phase modulator ngokusebenzisa i-input pulse output yedivayisi yokulawula izinombolo. Lapho idivayisi ye-CNC ikhipha i-forward noma reverse feed pulse, i-pulse modulator ye-pulse phase modulator izothuthukisa noma ibambezele isignali yereferensi nge-phase Angle ehambisanayo.
I-MCU ithola isiguquli sesigaba sedijithali: yenza i-counter nge-clock pulse, engeza noma susa i-pulse eyengeziwe ukushintsha isigaba sokuphuma kwe-counter, ukuze kufezwe ukuguqulwa kwesigaba.
Isibonelo sohlelo lokusebenza lwe-phase modulator
Uhlelo lwesikhathi se-valve eguquguqukayo: I-phase modulator iyisici esibalulekile sohlelo lwesikhathi se-valve eguquguqukayo, ithuthukisa ukusebenza kwenjini ngokulawula isigaba sesikhathi se-valve.
Idivayisi yesinxephezelo samandla asebenzayo: Ikhamera yokulungisa iyidivayisi yesinxephezelo samandla asebenzayo esetshenziselwa ukugcina ibhalansi ye-voltage ohlelweni lwamandla.
Iphutha lomlawuli wesigaba sezimoto libonakala kakhulu njengezimpawu zokwehluleka komlawuli we-elekthronikhi wezimoto, lezi zimpawu zifaka:
Ukuwohloka komlawuli we-voltage : ukuwohloka kwe-transistor ye-FET noma i-Darlington ngaphakathi komlawuli we-voltage, okubangela ukuthi ugesi ovuthayo uphelelwe amandla, okubangela ukuthi i-voltage yokukhipha yejeneretha ikhuphuke, kanye nebhethri lishaje kakhulu.
ijenereyitha yonakele: Uma ijenereyitha yonakele, i-voltage yokukhipha iyancipha futhi ibhethri ayikwazi ukushajwa.
Umonakalo we-effector noma we-Darlington tube ovulekile: Uma umonakalo we-effector noma we-Darlington tube ovulekile, i-generator excitation winding lead iphansi.
Isibonakaliso sebhethri sivuliwe uma kungakhiqizwa ugesi: Isibonakaliso sebhethri singase sivuliwe ngoba kungakhiqizwa ugesi, noma kungenzeka ukuthi kungenxa yokukhiqizwa kwamandla aphezulu. Uma i-voltage yebhethri yehla ngaphansi kwama-volts ayi-10, injini iyazamazama, kunzima ukuyiqala, noma ayikwazi ukusheshisa futhi ime.
Lezi zimpawu zibonisa inkinga ngohlelo lukagesi lwemoto, okungathinta kabi ukusebenza kwemoto. Ngakho-ke, ukuxilongwa nokulungiswa kwalokhu kwehluleka ngesikhathi kubaluleke kakhulu.
Ngaphezu kwalokho, izimpawu zephutha le-alternator yemoto zifaka phakathi ukungashaji, ugesi wokushaja mncane kakhulu noma mkhulu kakhulu, futhi la maphutha angahlobene nephutha lomlawuli. Isibonelo, ukwehluleka ukushaja kungabangelwa ibhande lejeneretha eliphukile, umugqa wokuvuselela wejeneretha ophukile noma umugqa wokushaja, kanye nokuxhumana okungekuhle phakathi kwebhulashi nendandatho yokushelela. Ugesi wokushaja mncane kakhulu ungabangelwa ukuxhumana okungekuhle komugqa wokushaja, ukushelela kwebhande lokushayela, ukwehluleka kwejeneretha noma ugesi wokulawula umlawuli uphansi kakhulu. Ugesi wokushaja mkhulu kakhulu ungabangelwa ukuthi inani le-voltage yokulawula umlawuli liphezulu kakhulu .
Ngamafuphi, izimpawu zokwehluleka kwe-modulator yesigaba semoto zifaka phakathi ukushaja ngokweqile kwebhethri, ukwehluleka kwebhethri ukushaja, ukukhanya kwesibonakaliso sebhethri, njll., okungathinta ukusebenza okuvamile kwemoto. Ngakho-ke, kuyadingeka ukuxilonga nokulungisa iphutha le-modulator yesigaba semoto ngesikhathi.
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