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늾Wj^ľlܓQOrھlܿÿڃȵIJ֕rgȌͨʹWj늉F·ʧʹ׃lݔȵ·пF^ķ؏늉ܵpĶݔ·

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׃lݔݔУкܶߴCɷܘԴopĵ^ʹC߀SlʺܸߵCɷ֡ԸNʽԼȥγɌ׃lOĸɔ_̖

(1)ݔIJ׃lݔǶOݞV·@ȻֻԴľ늉ULɶ˵ֱ늉UDrвгdzFԴ늉ֵʲBm(x)ě_ʽк܏ĸߴCɷPYϱݔе5C7CCģքe50HZ80%70%

(2)ݔ늉cIJν^׃l׃򶼲SPWM{Ʒʽݔ늉ռձȰҎ(gu)ɷֲϵоʽβ늄әC@M늸|ӵʮֽӽҲcdlȵC^

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(2)БϷʽ׃lݔ·ݔ·cO·úܽr׃lĸߴC̖ͨ^БķʽϵOȥБķʽЃɷNa늴ŸБʽ@ɔ_̖Ҫʽbo늸Бʽ@늉ɔ_̖Ҫʽ

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3θɔ_ԴƸɔ_Чķͨ׃lFΣ׌늴Ÿɔ_й©;ݔ䓹؄eⲿ̖׃lrҪ̖Mܶ(һ20mԃ)̖pоΣc·(AC380V)ƾ(AC220V)ȫxQܷͬһܻ򾀲ۃȣ܇O侀·ҲҪʹЧֱ횿ɿӵ

4_Ľӵؼȿʹϵy(tng)Чɔ_ܽO䱾팦ĸɔ_ڌHϵy(tng)ϵy(tng)Դ㾀(о)ؾ(oӵءϵy(tng)ӵ)ϵy(tng)ε(̖εغ·ε)ĻyB󽵵ϵy(tng)ķ(wn)ԺͿɿ

׃l·PE(EG)_ӵ׃l•͜pС׃lɔ_ҪֶڌHһҪdzҕ׃lӵ،Ľeһ㑪С2.5mm2Lȿ20mԃh׃lĽӵcOӵc_ܹ

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(1)늿“Դc׃lݔ֮gҪУaͨ^C(0.75-0.85)bݔ·еӿ׃lě_cԴ늉ƽӰ

(2)ֱ늿“͞V֮gĹܱ^һݔеĸߴCɷ֡߹򔵷Ƚ늿Ч_0.95нYweСȃ(yu)c

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