Bayan kusan shekaru 10 na ci gaba, sabbin motocin lantarki masu amfani da makamashi sun haifar da tarin fasaha.Akwai ilimi da yawa a cikin ƙirar sassan motocin lantarki da zaɓi da daidaita abubuwan da aka gyara.Daga cikin su, zane na precharge resistor a cikin precharge kewaye yana buƙatar la'akari da yawancin yanayi da yanayin aiki.Zaɓin precharge resistor yana ƙayyade saurin lokacin cajin abin hawa, girman sararin da motar ta mamaye.precharge resistor, da aminci, amintacce, da kwanciyar hankali na babban ƙarfin lantarki na abin hawa.
Precharge resistor shine resistor wanda sannu a hankali yake cajin capacitor a farkon matakin babban ƙarfin wutar lantarki na abin hawa.Idan babu precharge resistor, yawan cajin halin yanzu zai rushe capacitor.Ana amfani da wutar lantarki mai ƙarfi kai tsaye zuwa capacitor, wanda yayi daidai da gajeriyar kewayawa nan take.Wuce kima na gajeren kewayawa na yanzu zai lalata manyan kayan aikin lantarki.Saboda haka, precharge resistor yakamata a yi la'akari da lokacin zayyana da'ira don tabbatar da amincin kewaye.
Akwai wurare biyu indaprecharge resistorsana amfani da su a cikin matsakaita da babban ƙarfin lantarki na motocin lantarki, wato na'ura mai sarrafa motsi na precharge da na'ura mai ɗaukar nauyi mai ƙarfi.Akwai babban capacitor a cikin na'ura mai sarrafa motsi (inverter circuit), wanda ke buƙatar caji don sarrafa capacitor cajin halin yanzu.Na'urorin haɗi masu ƙarfi gabaɗaya sun haɗa da DCDC (DC Converter), OBC (caja a kan allo), PDU (akwatin rarraba wutar lantarki mai ƙarfi), famfo mai, famfo ruwa, AC (compressor na iska) da sauran abubuwan da aka gyara, sannan akwai kuma sauran abubuwan. manyan capacitors a cikin sassan., don haka ana buƙatar precharging.
Precharge resistorsR, lokacin precharge T, kuma ana buƙatar precharge capacitor C, lokacin caji gabaɗaya shine sau 3 zuwa 5 RC, kuma lokacin precharge gabaɗaya millise seconds ne.Don haka, ana iya kammala caji da sauri kuma ba zai shafi dabarun sarrafa wutar lantarkin abin hawa ba.Sharadi don yin hukunci ko an gama cajin caji shine ko ya kai kashi 90% na ƙarfin baturin wuta (yawanci haka lamarin yake).Lokacin zabar precharge resistor, ya kamata a yi la'akari da waɗannan sharuɗɗan: ƙarfin baturi mai ƙarfi, mai ƙididdigewa na yanzu, ƙimar capacitor C, matsakaicin yanayin zafin jiki, hauhawar zafin jiki na resistor, ƙarfin lantarki bayan precharge, lokacin precharge, ƙimar juriya mai rufi, ƙarfin bugun jini.Ƙididdigar ƙididdiga don makamashin bugun jini shine rabin samfurin murabba'in ƙarfin bugun bugun jini da ƙimar ma'ana C.Idan bugun bugun jini ne mai ci gaba, to jimlar makamashi ya kamata ya zama jimillar kuzarin dukkan bugun jini.
