Menene girman fuse don amplifier 1000W (cikakken)
Abubuwa
Kuna karɓar kariyar da fius ɗin lantarki kawai ke bayarwa idan ƙimar ta yi daidai da tsarin kewayawa ko tsarin wayoyi da aka shigar dashi.
Lokacin da wannan kimar ya fi yadda ake buƙata, za ku sami lahani ga lasifikan ku, kuma idan ya yi ƙasa, za ku karya waya ta fius da kewayen tsarin sauti na dindindin.
Ci gaba da karantawa don gano ƙimar fis ɗin da kuke buƙatar shigar don kare amplifier ɗin ku na 1000W a cikin motarku ko gidanku.
Mu fara.
Menene girman fuse don amplifier 1000W?
Don amplifier audio watt 1000 a cikin motar ku, kuna buƙatar fis na kusan amps 80 don kare shi da kyau. Ana samun wannan ƙimar daga dabarar I=P/V, wanda ke yin la'akari da ƙimar ƙarfin ƙararrawa, ƙarfin fitarwa na alternator na abin hawa, da ajin inganci na amplifier.
Kodayake amplifier na sautin motar yawanci yana zuwa tare da fis na ciki don kare shi daga hawan wutar lantarki, wannan kariyar ba ta wuce wayoyi na waje na lasifikar da dukkan tsarin sauti ba.
Wannan yana nufin har yanzu kuna buƙatar fius ɗin lantarki don kare gabaɗayan tsarin amplifier ɗin ku da wayoyi a yayin da kowane ƙarfin wutar lantarki ya yi.
Yawancin lokaci, zabar sabon fiusi na lantarki ya kamata ya zama madaidaiciya. Za ku zaɓi ɗaya mai ƙima iri ɗaya da ƙima kamar tsohon akwatin fuse.
Koyaya, wannan yana da wahala idan ba ku da wata alama ta ƙimar ko kuma idan kuna shigar da sabon amplifier a cikin motar ku.
Don taimaka maka cikakken fahimtar yadda ake girman fis ɗin lantarki daidai, za mu bayyana menene abubuwa uku da aka ambata a sama. Za mu kuma nuna maka matsayinsu a cikin dabarar da aka gabatar.
Amplifier ikon rating da ingancin aji
Ikon amplifier audio shine ikon fitarwa wanda yake fitarwa lokacin aiki. Lokacin da kuka kalli amplifier ɗin motar ku, kuna ganin ƙimar ƙarfin wuta a cikin ƙayyadaddun bayanai. A cikin yanayinmu, muna sa ran ganin takamaiman 1000W. Yanzu akwai wasu abubuwan da za a yi la'akari da su.
Amplifiers na sauti yawanci suna faɗuwa cikin azuzuwan daban-daban, kuma waɗannan azuzuwan suna da sifofi daban-daban na ingancin aiki. Matsayin inganci na amplifier shine adadin ƙarfin da yake haskakawa a watts idan aka kwatanta da ikon shigar da shi.
Shahararrun azuzuwan amplifier audio da matakan aikinsu an jera su a ƙasa:
- Class A - inganci 30%
- Class B - 50% inganci
- Class AB - inganci 50-60%
- Class C - 100% inganci
- Class D - 80% inganci
Da farko kuna la'akari da waɗannan ƙimar inganci yayin ƙididdige madaidaicin iko ko ƙimar wutar don shigar da tsarin. Ta yaya kuke aiwatar da su?
Ana amfani da amplifiers na Class A a cikin ƙananan da'irar wutar lantarki saboda rashin ingancin su. Wannan yana nufin ba a saba ganin su akan tsarin 1000 watt ba.
Wataƙila kuna ma'amala da aji AB, ajin C da na'urori masu ƙarfi na D saboda mafi girman inganci da aminci a cikin tsarin 1000 watt.
Misali, don rukunin D aji 1000 watt tare da inganci 80%, ƙarfin shigar da amplifier ɗin ku na farko yana zuwa 1250 watts (1000 watts / 80%). Wannan yana nufin cewa ƙimar ƙarfin da kuka shigar a cikin dabara shine 1250W, ba 1000W ba.
Bayan haka, kuna kiyaye watts 1000 don amps na aji C da kusan watts 1660 na AB amps na aji.
Fitar janareta
Lokacin da muka ƙididdige ƙimar fiusi don amplifiers, a zahiri muna ƙididdige halin yanzu ko na yanzu da ake aika ta wutar lantarki. A cikin yanayin amplifier na mota, muna la'akari da halin yanzu wanda mai canzawa ya kawo.
Bugu da ƙari, ƙididdiga na fis ɗin lantarki koyaushe ana nuna su cikin amperage. Idan ka ga ƙimar "70" akan fis, wannan yana nufin an ƙididdige shi a 70 amps. Tun da ikon halayen masu magana yawanci ƙimar wutar lantarki ne, ƙirar tana taimakawa don yin juzu'i masu dacewa.
A 1000W amplifier koyaushe yana gudana a madadin 1000W, don haka muna nufin canza wannan ikon zuwa amps. Wannan shi ne inda dabara ta shigo.
Mahimmin tsari don canza watts zuwa amps shine kamar haka:
Ampere = W/Volt or I=P/V inda "I" shine amp, "P" shine wuta, kuma "V" shine ƙarfin lantarki.
Ƙayyade ƙarfin lantarkin da mai canzawa ke bayarwa ba shi da wahala, saboda yawanci ana jera shi akan ƙayyadaddun madaidaicin. A matsakaita, wannan ƙimar tana daga 13.8 V zuwa 14.4 V, tare da ƙarshen ya zama gama gari. Sannan, a cikin dabara, kuna adana 14.4V azaman ƙimar ƙarfin lantarki akai-akai.
Idan kuna son zama daidai a cikin ƙididdiganku, zaku iya amfani da multimeter don bincika ƙarfin samar da janareta. Jagoranmu don bincikar janareta tare da multimeter yana taimakawa da wannan.
Misalai na Ma'aunin Fuse don Ƙarfin Amplifier da Aji
Tare da duk abin da ake faɗi, idan kuna son samun ƙimar da aka ba da shawarar don amp, dole ne ku fara la'akari da aji da ingancinsa. Kuna amfani da wannan ingantaccen yanayin don samun ƙarfin shigarwar farko na amplifier, sannan ku canza shi zuwa amps don gano yawan halin yanzu yana da hadari don zana.
1000 watt class AB amplifier
Tare da amplifier na aji 1000 watt AB zaku sami ikon shigar da farko wanda ke kusa da 1660 watts la'akari da ingancinsa na 60% (1000 watts / 0.6). Sannan ku yi amfani da dabarar:
I = 1660/14.4 = 115A
Girman fiusi da kuke amfani da su don ajin AB amplifiers zai kasance kusa da wannan ƙimar. Wannan fuse 110 amp ne.
1000 watt class C amplifier
A ingancin 100%, kuna samun ƙarfin fitarwa iri ɗaya daga amplifiers Class C kamar ƙarfin shigar su. Wannan yana nufin cewa "P" zai kasance a 1000 watts. Sannan tsarin tsari ya kasance kamar haka:
I = 1000/14.4 = 69.4A
Ta hanyar haɗa wannan ƙimar zuwa ƙimar da ake samu mafi kusa, za ku zaɓi fius 70 amp.
1000 watt class D amplifier
Tare da inganci na 80%, 1000 watt aji D amplifiers farawa da 1,250 watts (1000 watts/0.8). Sannan zaku lissafta kimar ta amfani da waɗannan dabi'u a cikin dabara:
I = 1250/14.4 = 86.8A
Kuna neman fuse mota 90A.
Menene game da fuses masu girma dabam?
500W class D amplifier
Don amplifier 500-watt, ƙa'idodin sun kasance iri ɗaya. Maimakon amfani da watts 500 a cikin dabara, kuna la'akari da ingancin aji. A wannan yanayin, ingancin 80% yana nufin kuna amfani da 625W maimakon. Don ƙididdige ƙimar ku, sannan ku ciyar da waɗannan ƙimar cikin tsari.
I = 625/14.4 = 43.4A
Ƙaddamar da wancan har zuwa mafi kusa samuwa rating, kana neman 45 amp fuse.
1000 W class D fuse a cikin da'irori 120 V
Idan ana amfani da amplifier da kake son haɗawa a cikin gidanka ba a cikin motarka ba, wutar lantarki na AC don shi yawanci 120V ko 240V. Don kayan wuta na 120V, kuna aiwatar da dabi'u:
I = 1250/120 = 10.4 A. Wannan yana nufin kana zabar fuse 10 amp.
Don samar da wutar lantarki 240V, dabarar da ke gaba tana aiki maimakon:
I \u1250d 240/5.2 \u5d XNUMX A. Kuna zagaye wannan lambar zuwa ƙimar mafi kusa, wato, za ku zaɓi fius na XNUMXA.
Koyaya, ban da wannan duka, akwai ƙarin abu ɗaya da za a yi la'akari da shi yayin tantance ƙimar fuse na yanzu cikin aminci.
Abubuwan Da Suka Shafi Fuse Rating
Akwai abubuwa da yawa da ke tattare da girman fuse, kuma ko dai suna sanya ƙimar tushe mafi girma ko ƙasa fiye da abin da tsari ya ƙaddara.
Wasu daga cikin waɗannan abubuwan sun haɗa da hankalin na'urar da fis ɗin ke karewa, na'urorin sanyaya iska da ke akwai, da yadda igiyoyin haɗin ke haɗuwa.
Lokacin zabar fiusi, ya kamata ku kuma yi la'akari da ƙimar ƙarfin lantarki, matsakaicin gajeriyar kewayawa, da girman jiki. Nau'in fis ɗin da aka yi amfani da shi a cikin kewayawa yana ƙayyade abubuwan da za a yi la'akari.
A cikin amps na mota, kuna amfani da fis ɗin mota, yayin da fis ɗin harsashi galibi ana samun su a cikin kayan aikin ku na gida.
Yanzu, lokacin da aka ƙayyade ƙimar fuse, akwai muhimmin abu ɗaya don kula da shi. Wannan batu ne na ƙimar fuse.
Fuse derating
Ragewa yana faruwa lokacin da aka canza ƙimar fiusi da aka ba da shawarar don guje wa busa maras so. Zazzabi na yanayin da kuke niyyar amfani da fis ɗin shine muhimmin al'amari mai tasiri akan ƙimar fiusi ta ƙarshe.
Matsakaicin zafin gwajin waya mai fussible shine 25°C, wanda ke lalata fis da 25% daga ƙimar su ta yau da kullun. Maimakon yin amfani da fiusi na 70A don amplifier ajin C, kun zaɓi fiusi tare da ƙimar mafi girma 25%.
Wannan yana nufin kuna amfani da fuse 90A. Wannan tarwatsewar na iya zama babba ko ƙasa dangane da sauran abubuwan da aka ambata a sama.
Tambayoyi akai-akai
Amps nawa ne na'urar amplifier watt 1000 ke zana?
Ya dogara da irin ƙarfin lantarki da amplifier ke aiki dashi. Amplifier na 1000W yana cinye 8.3 amps lokacin aiki a cikin da'irar 120V, 4.5 amps lokacin aiki a cikin da'irar 220V, da 83 amps lokacin aiki a cikin da'irar 12V.
Menene girman fiusi nake buƙata don 1200W?
Don 1200 watts, kuna amfani da fuse 10 amp a cikin da'irar 120 volt, fuse 5 amp a cikin da'irar 240 volt, da fuse 100 amp a cikin 12 volt circuit. Suna bambanta dangane da adadin derating da ake bukata.
