Kodi kukula kwa fusesi kwa 1000W amplifier ndi chiyani (mwatsatanetsatane)

Mumalandira chitetezo choperekedwa ndi fuse yamagetsi pokhapokha ngati chiwerengerocho chikufanana ndi dera kapena mawaya omwe amaikidwa.

Mulingo uwu ukakwera kuposa momwe umafunikira, mumawononga kwambiri okamba anu, ndipo ikatsika, mumathyola waya wa fuse ndi ma audio system. 

Pitilizani kuwerenga kuti mudziwe ma fusesi omwe muyenera kuyika kuti muteteze amplifier yanu ya 1000W mgalimoto kapena kunyumba kwanu.

Tiyeni tiyambe.

Kodi kukula kwa fusesi kwa 1000W amplifier ndi chiyani?

Kwa 1000 watt audio amplifier m'galimoto yanu, mudzafunika fuseji ya ma amps 80 kuti muteteze bwino. Chiwerengerochi chimachokera ku ndondomeko I = P / V, yomwe imaganizira mphamvu ya amplifier, mphamvu yotulutsa mphamvu ya alternator ya galimoto, ndi kalasi yoyenera ya amplifier.

Ngakhale amplifier yagalimoto yamagalimoto nthawi zambiri imabwera ndi fuse yamkati kuti itetezedwe ku mphamvu zamagetsi, chitetezo ichi sichimapitilira mawaya akunja a okamba ndi makina onse omvera.

Izi zikutanthauza kuti mukufunikirabe fuse yamagetsi kuti muteteze dongosolo lanu lonse la amplifier ndi mawaya pakachitika mphamvu iliyonse yamagetsi.

Nthawi zambiri, kusankha fusesi yatsopano yamagetsi kuyenera kukhala yolunjika. Mumangosankha imodzi yokhala ndi mtundu womwewo ndikuyika ngati bokosi lakale lophulitsidwa.

Komabe, izi zimakhala zovuta ngati mulibe chizindikiro chilichonse kapena ngati mukukhazikitsa amplifier yatsopano m'galimoto yanu.

Kuti tikuthandizeni kumvetsetsa momwe mungakulire molondola fuse yamagetsi, tikufotokozerani zinthu zitatu zomwe tatchulazi. Tikuwonetsanso malo awo mu fomula yomwe yaperekedwa.

Mphamvu ya Amplifier ndi kalasi yabwino

Mphamvu ya amplifier ya audio ndi mphamvu yotulutsa yomwe imatulutsa ikamagwira ntchito. Mukayang'ana pa amplifier ya galimoto yanu, mumawona kuchuluka kwa mphamvu muzowonjezera. Kwa ife, tikuyembekeza kuwona mawonekedwe a 1000W. Tsopano pali zinthu zina zofunika kuziganizira.

Ma audio amplifiers nthawi zambiri amagwera m'magulu osiyanasiyana, ndipo makalasiwa amakhala ndi magwiridwe antchito osiyanasiyana. Mulingo woyenera wa amplifier ndi kuchuluka kwa mphamvu yomwe imawonekera mu watts poyerekeza ndi mphamvu yake yolowera.

Makalasi odziwika bwino a audio amplifier ndi magwiridwe antchito awo alembedwa pansipa:

• Kalasi A - kuchita bwino 30%
• Kalasi B - 50% bwino
• Kalasi AB - Kuchita bwino kwa 50-60%
• Kalasi C - 100% bwino
• Kalasi D - 80% bwino

Mumaganizira kaye izi powerengera mphamvu yoyenera kapena mtengo wamagetsi kuti mulowe mu fomula. Kodi mumawagwiritsa ntchito bwanji?

Ma amplifiers a Class A amagwiritsidwa ntchito kwambiri m'mabwalo ochepera mphamvu chifukwa cha kulephera kwawo. Izi zikutanthauza kuti simumawawona pamakina 1000 watt.

Mukhala mukuchita ndi kalasi ya AB, kalasi C ndi amplifiers a kalasi D chifukwa chakuchita bwino kwawo komanso chitetezo pamakina a 1000 watt.

Mwachitsanzo, pagawo la D la 1000 watt lomwe lili ndi 80% bwino, mphamvu yolowetsa ya amplifier yanu imakwera mpaka 1250 watts (1000 watts / 80%). Izi zikutanthauza kuti mphamvu yamagetsi yomwe mumayika mu fomula ndi 1250W, osati 1000W.

Pambuyo pake, mumasunga ma Watts 1000 a kalasi C amps ndi pafupifupi 1660 Watts kwa kalasi AB amps.

Kutulutsa kwa jenereta

Tikamawerengera fusesi ya amplifiers, timawerengera zapano kapena zomwe zikutumizidwa ndi magetsi ake. Pankhani ya amplifier yamagalimoto, tikuganizira zapano zomwe zimaperekedwa ndi alternator.

Kuphatikiza apo, kuwerengera kwa ma fuse amagetsi nthawi zonse kumawonetsedwa mu amperage. Ngati muwona "70" pa fuseji, ndiye kuti idavotera 70 amps. Popeza kuti mphamvu za okamba nkhani nthawi zambiri zimakhala zamphamvu, ndondomekoyi imathandizira kutembenuza koyenera. 

1000W amplifier nthawi zonse imakhala ndi 1000W alternator, kotero timafuna kusintha mphamvuzo kukhala ma amps. Apa ndipamene formula imabwera.

Njira yosinthira ma watts kukhala amps ndi motere:

Ampere = W/Volt or I=P/V kumene "I" ndi amp, "P" ndi mphamvu, ndipo "V" ndi magetsi.

Kuzindikira voteji yoperekedwa ndi alternator sikovuta, chifukwa nthawi zambiri imalembedwa pamakina a alternator. Pa avareji, mtengo uwu umachokera ku 13.8 V mpaka 14.4 V, ndipo chomalizacho chimakhala chofala kwambiri. Kenako, munjirayi, mumasunga 14.4V ngati mtengo wamagetsi osasintha.

Ngati mukufuna kukhala olondola pakuyerekeza kwanu, mutha kugwiritsa ntchito multimeter kuti muwone mphamvu yamagetsi yamagetsi ya jenereta. Kalozera wathu wozindikira jenereta ndi ma multimeter amathandizira pa izi.

Zitsanzo za Magawo a Fuse a Mphamvu ya Amplifier ndi Gulu 

Ndi zonse zomwe zikunenedwa, ngati mukufuna kupeza mavoti ovomerezeka a amp, muyenera kuganizira kaye kalasi yake komanso magwiridwe ake. Mumagwiritsa ntchito izi kuti mupeze mphamvu zoyambira za amplifier, kenako ndikuzisintha kukhala ma amps kuti mudziwe kuchuluka kwake komwe kuli kotetezeka kujambula.

1000 watt class AB amplifier

Ndi 1000 watt class AB amplifier mudzapeza mphamvu yolowetsa yoyambira yomwe ili pafupi ndi 1660 watts poganizira mphamvu zake 60% (1000 watts / 0.6). Kenako mumagwiritsa ntchito formula:

Ine = 1660/14.4 = 115A

Kukula kwa fusesi komwe mumagwiritsa ntchito zokulitsa kalasi AB kudzakhala pafupi ndi mtengowu. Iyi ndi 110 amp fuse.

1000 Watt kalasi C amplifier

Pakuchita bwino kwa 100%, mumapeza mphamvu zomwezo kuchokera ku zokulitsa za Class C monga mphamvu yawo yolowera. Izi zikutanthauza kuti "P" ikhalabe pa 1000 watts. Kenako fomula ikuwoneka motere:

Ine = 1000/14.4 = 69.4A

Pozungulira mtengowu kumtengo wapafupi womwe ulipo, mumasankha fusesi ya 70 amp.

1000 Watt kalasi D amplifier

Ndi mphamvu ya 80%, 1000 watt class D amplifiers amayamba ndi 1,250 watts (1000 watts/0.8). Kenako mumawerengera masanjidwewo pogwiritsa ntchito zikhalidwe izi:

Ine = 1250/14.4 = 86.8A

Mukuyang'ana fuse yagalimoto ya 90A.

Nanga bwanji masaizi osiyanasiyana?

500W kalasi D amplifier

Kwa amplifier ya 500-watt, mfundo zimakhala zofanana. M'malo mogwiritsa ntchito ma watts 500 mu fomula, mukuganizira momwe kalasi ikuyendera. Pamenepa, 80% kuchita bwino kumatanthauza kuti mukugwiritsa ntchito 625W m'malo mwake. Kuti muwerengere mavoti anu, mumadyetsa izi kukhala fomula.

Ine = 625/14.4 = 43.4A

Kufikira pamlingo wapafupi womwe ulipo, mukuyang'ana fuse ya 45 amp.

1000 W kalasi D fuseji mu 120 V mabwalo

Ngati chokulitsa chomwe mukufuna kuphatikizira chikugwiritsidwa ntchito m'nyumba mwanu osati m'galimoto yanu, magetsi a AC nthawi zambiri amakhala 120V kapena 240V. Pamagetsi a 120V, mumagwiritsa ntchito mfundozi:

Ine = 1250/120 = 10.4 A. Izi zikutanthauza kuti mukusankha 10 amp fuse.

Pamagetsi a 240 V, njira yotsatirayi ikugwira ntchito m'malo mwake:

I \u1250d 240/5.2 \u5d XNUMX A. Mumazungulira nambalayi mpaka mavoti apafupi omwe alipo, ndiye kuti, mumasankha fusesi ya XNUMXA.

Komabe, kuwonjezera pa zonsezi, pali chinthu chinanso choyenera kuganizira pozindikira kuchuluka kwa fuse pano mosamala.

Zinthu Zomwe Zimakhudza Mawerengedwe a Fuse

Pali zinthu zambiri zomwe zimakhudzidwa ndi kukula kwa fusesi, ndipo zimapangitsa kuti masitepe akhale apamwamba kapena otsika kuposa omwe amatsimikiziridwa ndi fomula.

Zina mwa zinthuzi ndi monga kukhudzika kwa chipangizo chomwe fuseyi imateteza, makina owongolera mpweya omwe amapezeka, komanso momwe zingwe zolumikizira zimasinthira.

Posankha fuseji, muyenera kuganiziranso kuchuluka kwake kwamagetsi, kuchuluka kwanthawi yayitali, komanso kukula kwake. Mtundu wa fuse womwe umagwiritsidwa ntchito pozungulira makamaka umatsimikizira zomwe ziyenera kuganiziridwa.

Mu ma amp agalimoto, mumagwiritsa ntchito fuse ya tsamba lagalimoto, pomwe ma fuse a cartridge amapezeka kwambiri pazida zanu zapanyumba.

Tsopano, pozindikira kuchuluka kwa fuse, pali chinthu chimodzi chofunikira kulabadira. Ili ndi vuto la ma fuse.

Kutentha kwa fuse

Kuchepetsa kumachitika pamene mulingo wovomerezeka wa fusewu wasinthidwa kuti mupewe kuphulika kosayenera. Kutentha kwa malo omwe mukufuna kugwiritsa ntchito fuseyi ndi chinthu chofunikira chomwe chimapangitsa kuti fuseyi ikhale yomaliza.

Kutentha kwanthawi zonse kwa fusible waya ndi 25 ° C, komwe kumachepetsa ma fuse ndi 25% kuchokera pazomwe amawerengera. M'malo mogwiritsa ntchito fusesi ya 70A ya amplifier ya kalasi C, mumasankha fusesi yokhala ndi 25% yapamwamba.

Izi zikutanthauza kuti mukugwiritsa ntchito fusesi ya 90A. Kubalalika kumeneku kungakhale kokwera kapena kutsika kutengera zinthu zina zomwe tazitchula pamwambapa.

Mafunso ofunsidwa kawirikawiri

Kodi amplifier 1000 watt imakoka ma amps angati?

Zimatengera mphamvu yamagetsi yomwe amplifier ikugwira ntchito. 1000W amplifier imagwiritsa ntchito 8.3 amps ikugwira ntchito mu 120V circuit, 4.5 amps ikugwira ntchito mu 220V circuit, ndi 83 amps ikugwira ntchito mu 12V circuit.

Ndi kukula kwa fusesi kwa 1200W?

Kwa 1200 watts, mumagwiritsa ntchito fuse ya 10 amp mu 120 volt circuit, 5 amp fuse mu 240 volt circuit, ndi 100 amp fuse mu 12 volt circuit. Zimasiyanasiyana malinga ndi kuchuluka kwa derating zofunika.