Ungakanani usayizi wefuse we-amplifier engu-1000W (inemininingwane)

Uthola isivikelo esinikezwa yi-fuse kagesi kuphela uma isilinganiso sifana nesekhethi noma isistimu yezintambo efakwe kuyo.

Uma lesi silinganiso siphezulu kunalokho okudingekayo, uthola ukulimala okudlulele kuzipikha zakho, futhi uma siphansi, uphula unomphela intambo ye-fuse nesekhethi yesistimu yomsindo. 

Qhubeka ufunda ukuze uthole izilinganiso ze-fuse okudingeka uzifake ukuze uvikele isikhulisi sakho esingu-1000W emotweni noma ekhaya lakho.

Ake siqale.

Uyini usayizi wefuse we-1000W amplifier?

Ukuze uthole iamplifier yomsindo engu-1000 watt emotweni yakho, uzodinga i-fuse cishe engama-amps angu-80 ukuze uyivikele kahle. Lesi silinganiso sitholwa kufomula ethi I=P/V, ecabangela isilinganiso samandla se-amplifier, amandla okukhiphayo we-alternator yemoto, kanye nesigaba sokusebenza kahle se-amplifier.

Nakuba i-amplifier yomsindo wemoto ngokuvamile iza ne-fuse yangaphakathi ukuyivikela ekukhuphukeni kwamandla, lesi sivikelo asidluleli kuzintambo zangaphandle zezipikha kanye nayo yonke isistimu yomsindo.

Lokhu kusho ukuthi usadinga i-fuse kagesi ukuze uvikele lonke uhlelo lwakho lwe-amplifier kanye nezintambo uma kwenzeka noma yikuphi ukuqhuma kwamandla.

Ngokuvamile, ukukhetha i-fuse kagesi entsha kufanele kube kuqondile. Uvele ukhethe eyodwa enemodeli efanayo futhi ulinganise njengebhokisi le-fuse elidala.

Nokho, lokhu kuba nzima uma ungenayo inkomba yesilinganiso noma uma ufaka i-amplifier entsha emotweni yakho.

Ukuze sikusize uqonde ngokugcwele indlela yokulinganisa kahle i-fuse kagesi, sizochaza ukuthi yiziphi izici ezintathu ezishiwo ngenhla. Sizophinde sikubonise indawo yabo kufomula ethulwayo.

Isilinganiso samandla esikhulisi kanye nesigaba sokusebenza kahle

Amandla esikhulisi somsindo amandla okukhiphayo esiwakhiphayo lapho sisebenza. Uma ubheka isikhulisi semoto yakho, ubona isilinganiso samanzi emibhalweni. Esimweni sethu, silindele ukubona i-1000W spec. Manje kunezinye izici okufanele zicatshangelwe.

Izikhulisi zomsindo ngokuvamile ziwela emakilasini ahlukene, futhi lezi zigaba zibonakala ngamazinga ahlukene okusebenza kahle ekusebenzeni. Izinga elisebenza kahle le-amplifier inani lamandla eliwakhiphayo kuma-watts uma liqhathaniswa namandla alo okufaka.

Amakilasi esikhulisi somsindo adume kakhulu kanye namazinga awo okusebenza ahlukahlukene abhalwe ngezansi:

• Ikilasi A - ukusebenza kahle okungu-30%
• I-Class B - 50% ukusebenza kahle
• I-Class AB - ukusebenza kahle okungu-50-60%
• I-Class C - ukusebenza kahle okungu-100%.
• Ikilasi D - 80% ukusebenza kahle

Uqala ngokucabangela lawa manani okusebenza kahle lapho ubala amandla afanele noma inani lamandla ukuze ufake ifomula. Uzisebenzisa kanjani?

Ama-amplifiers e-Class A avame ukusetshenziswa kumasekhethi wamandla aphansi ngenxa yokungasebenzi kahle kwawo. Lokhu kusho ukuthi awuvamisile ukuzibona kumasistimu angu-1000 watt.

Cishe uzobhekana nezikhulisamandla zekilasi AB, isigaba C kanye nesigaba D ngenxa yokusebenza kahle kwazo okuphezulu nokuphepha kumasistimu angu-1000 watt.

Isibonelo, kuyunithi yekilasi D elingu-1000 elisebenza kahle ngo-80%, amandla okufaka we-amplifier akho okuqala akhuphukela ku-1250 watts (1000 watts / 80%). Lokhu kusho ukuthi inani lamandla olifaka kufomula ngu-1250W, hhayi u-1000W.

Ngemuva kwalokho, ugcina ama-watts angu-1000 ekilasi C amps kanye namawathi angaba ngu-1660 kuma-amps ekilasi AB.

Okukhipha i-generator

Uma sibala isilinganiso se-fuse sama-amplifiers, empeleni sibala okwamanje noma okwamanje okuthunyelwa amandla ayo. Endabeni ye-amplifier yemoto, sicabangela okwamanje okunikezwa yi-alternator.

Ngaphezu kwalokho, izilinganiso zamafuse kagesi zihlale ziboniswa ku-amperage. Uma ubona isilinganiso esingu-"70" ku-fuse, lokho kusho ukuthi ilinganiselwe ku-70 amps. Njengoba izici zamandla ezikhulumi ngokuvamile zingamanani amandla, ifomula isiza ukwenza ukuguqulwa okufanele. 

I-amplifier engu-1000W ihlala isebenzisa i-alternator engu-1000W, ngakho-ke sihlose ukuguqula lawo mandla abe ama-amps. Yilapho ifomula ingena khona.

Ifomula eyisisekelo yokuguqula ama-watts abe ama-amps imi kanje:

Ampere = W/Volt or I=P/V lapho okuthi "I" kuyi-amp, "P" amandla, futhi "V" ingu-voltage.

Ukunquma i-voltage ehlinzekwa enye i-alternator akunzima, njengoba kuvame ukufakwa ohlwini ezincazelweni ze-alternator. Ngokwesilinganiso, leli nani lisukela ku-13.8 V ukuya ku-14.4 V, kanti lokhu kwakamuva kuvame kakhulu. Bese, kufomula, ugcina i-14.4V njengevelu ye-voltage engashintshi.

Uma ufuna ukunemba ezilinganisweni zakho, ungasebenzisa i-multimeter ukuze uhlole i-voltage ye-generator supply. Umhlahlandlela wethu wokuxilonga ijeneretha nge-multimeter usiza ngalokhu.

Izibonelo Zezilinganiso Ze-Fuse Zamandla Wesikhulisi Nekilasi 

Ngakho konke okushiwoyo, uma ufuna ukuthola isilinganiso esinconyiwe se-amp, kufanele uqale ucabangele isigaba sayo nokusebenza kahle kwayo. Usebenzisa lesi sici esisebenza kahle ukuze uthole amandla okokufaka okuqala esikhulisi, bese usiguqulela kuma-amps ukuze uthole ukuthi kuphephile kangakanani ukudwetshwa okwamanje.

1000 watt isigaba AB amplifier

Nge-amplifier yekilasi le-watt elingu-1000 uzothola amandla okuqala okufaka angaba ngu-1660 watts uma kubhekwa ukusebenza kahle kwawo okungu-60% (1000 watts / 0.6). Bese usebenzisa ifomula:

Mina = 1660/14.4 = 115A

Usayizi wefuse owusebenzisela izikhulisa-zwi zekilasi AB uzosondelana naleli nani. Le fuse engu-110 amp.

1000 watt isigaba C amplifier

Ngokusebenza kahle okungu-100%, uthola amandla afanayo okukhiphayo kuma-amplifiers Ekilasi C njengamandla azo okufaka. Lokhu kusho ukuthi "P" izohlala kuma-watts angu-1000. Khona-ke ifomula ibukeka kanje:

Mina = 1000/14.4 = 69.4A

Ngokusondeza leli nani kunani eliseduze elitholakalayo, ukhetha i-fuse engu-70 amp.

1000 watt isigaba D amplifier

Ngokusebenza kahle kwama-80%, izikhulisamandla zesigaba D eziyi-1000 ziqala ngama-watts angu-1,250 (1000 watts/0.8). Bese ubala izinga usebenzisa lawa manani kwifomula:

Mina = 1250/14.4 = 86.8A

Ufuna i-fuse yemoto engu-90A.

Kuthiwani ngamafusi anosayizi abahlukene?

500W isigaba D amplifier

Ku-500-watt amplifier, izimiso zihlala zifana. Esikhundleni sokusebenzisa ama-watts angu-500 kufomula, ucabangela ukusebenza kahle kwekilasi. Kulokhu, ukusebenza kahle okungu-80% kusho ukuthi usebenzisa i-625W esikhundleni salokho. Ukuze ubale isilinganiso sakho, bese uphakela lawo manani kufomula.

Mina = 625/14.4 = 43.4A

Ukusondeza lokho kuze kufike esilinganisweni esiseduze esitholakalayo, ufuna ifuse engu-45 amp.

Ifuse yekilasi D elingu-1000 kumasekethe angu-120 V

Uma i-amplifier ofuna ukuyihlanganisa isetshenziswa ekhaya lakho hhayi emotweni yakho, amandla e-AC ayo ngokuvamile angu-120V noma angu-240V. Kumandla kagesi angu-120V, usebenzisa amanani:

I = 1250/120 = 10.4 A. Lokhu kusho ukuthi ukhetha i-fuse engu-10 amp.

Kumandla kagesi angu-240 V, le fomula elandelayo iyasebenza esikhundleni salokho:

I \u1250d 240/5.2 \u5d XNUMX A. Usondeza le nombolo esilinganisweni esiseduze esitholakalayo, okungukuthi, ukhetha i-fuse engu-XNUMXA.

Kodwa-ke, ngaphezu kwakho konke lokhu, kunento eyodwa okufanele icatshangelwe lapho unquma isilinganiso samanje se-fuse ngokuphepha.

Izinto Ezithinta Isilinganiselwa se-Fuse

Kunezici eziningi ezihilelekile ekulinganisweni kwe-fuse, futhi zenza isilinganiso esiyisisekelo sibe phezulu noma sibe phansi kunalokho okunqunywa ifomula.

Ezinye zalezi zici zihlanganisa ukuzwela kwedivayisi evikelwa yifuse, amasistimu omoya atholakalayo, nendlela izintambo zokuxhuma ezihlangana ngayo.

Lapho ukhetha i-fuse, kufanele futhi ucabangele isilinganiso sayo se-voltage, umthamo wamanje we-short-circuit current, nosayizi womzimba. Uhlobo lwe-fuse olusetshenziswa kusekethe lunquma ikakhulukazi izici okufanele zicatshangelwe.

Kuma-amp emoto, usebenzisa i-fuse ye-blade yemoto, kuyilapho ama-cartridge fuse atholakala kakhulu ezintweni zakho zikagesi zasendlini.

Manje, lapho unquma isilinganiso se-fuse, kunesici esisodwa esibalulekile okufanele sinake. Lena inkinga yokulinganisa i-fuse.

Ukunciphisa i-fuse

Ukunciphisa kwenzeka lapho isilinganiso se-fuse esinconyiwe sishintshwa ukuze kugwenywe ukuqhunyiswa okungafunwa. Izinga lokushisa lendawo ohlose ukusebenzisa kuyo i-fuse liyisici esibalulekile esithonya isilinganiso sokugcina se-fuse.

Izinga lokushisa elijwayelekile le-fusible wire test lingu-25°C, elehlisa amafuse ngo-25% kusukela ezilinganisweni zawo ezivamile. Esikhundleni sokusebenzisa i-70A fuse ye-amplifier yekilasi C, ukhetha i-fuse enesilinganiso esiphezulu esingu-25%.

Lokhu kusho ukuthi usebenzisa i-fuse engu-90A. Lokhu kuhlakazeka kungase kube phezulu noma kube phansi kuye ngezinye izici ezishiwo ngenhla.

Imibuzo evame ukubuzwa

Mangaki ama-amps edonsa isikhulisi se-watt angu-1000?

Kuya nge-voltage i-amplifier esebenza ngayo. Isikhulisi esingu-1000W sisebenzisa ama-amps angu-8.3 uma sisebenza kuyisekethi engu-120V, ama-amps angu-4.5 uma sisebenza kusekethe engu-220V, kanye nama-amps angu-83 uma sisebenza kusekethe engu-12V.

Yimuphi usayizi wefuse engiwudingayo ku-1200W?

Kumawathi angu-1200, usebenzisa i-fuse engu-10 amp kusekethe engu-120 volt, i-fuse engu-5 amp kusekethe engu-240 volt, kanye ne-100 amp fuse kusekethe engu-12 volt. Ziyahlukahluka kuye ngenani lokunciphisa elidingekayo.