Ungayikhetha njani iSwitshi yangoku yoTshintsho lwaMandla aMabini

Kuyilo lokutshintshwa kwamandla amabini, eyona nto ibaluleke kakhulu yimodyuli yokulawula yangoku (TCM), kuba okwangoku ayinamandla ngokwaneleyo ukuhlangabezana nazo zonke iimfuno.

Kuzo zombini igalelo kunye nesiphumo esiphelweni kukho isixhasi esinomsebenzi wokucutha langoku kuluhlu oluchaziweyo.Esi sichasi sidla ngokubizwa ngokuba yi-current limiting resistor (LOR) okanye iyunithi yokukhawulela yangoku (LOC) okanye iyunithi yokukhawulela yangoku (LU), kwaye isetyenziselwa ukulawula imveliso yangoku.

Ukutshintshela amandla okubini okuqhelekileyo kunezinto ezimbini zombane.

Enye yityhubhu ephumayo, elawula ukucinywa kwe-MOSFET enye, kwaye enye yityhubhu yokufaka, elawula enye i-transistor kwimeko yokungabikho.

Isekethe enyibilikayo yangoku iyafuneka ukwenza zombini iityhubhu zivuleke kwaye zivaleke ngaxeshanye nokwenza ukuba iMOSFET ikwazi ukusebenza ngaphantsi kwendawo yokuphumla.

Lo ngumgaqo osisiseko kunye nokusetyenziswa kotshintshiselwano lwamandla amabini.

Kwisicelo esisebenzayo, kufuneka sithathele ingqalelo indawo yokusebenza kunye neemfuno, ezinje ngeqondo lobushushu lokusebenza, umthwalo, inqanaba lombane, amaza kunye nezinye iiparamitha zihlangabezana neemfuno zoyilo.

Okokuqala, xa sisebenzisa umtshini wamandla amabini, kufuneka sinikele ingqalelo kubungakanani bomthwalo wokukhetha okwangoku.

Ngexesha elifanayo, ukuba umthwalo ngumbane omkhulu, ngoko kuyimfuneko ukukhetha umjelo ofanelekileyo ukuhlangabezana neemfuno zomsinga omkhulu.

Ngokubanzi, kwi-voltage yegalelo ilingana ne-voltage ephumayo kunye nokumelana nomthwalo, umthwalo omkhulu, ubuninzi obuhambelanayo.

Kwezinye iimveliso zombane ezincinci ezifana neselfowuni, ukusetyenziswa kwamandla kufuneka kuthathelwe ingqalelo kwaye ibhetri akufanele isetyenziswe enkulu kakhulu.

Ezimbini, kumthwalo omncinci ngokwentelekiso, njengebhetri yefowuni ephathwayo (ukutshaja), umamkeli wekhompyuter (unikezelo lwamandla) umthwalo omncinci onjalo, ukuba kukutshaja kwefowuni ephathwayo, kufuneka siqwalasele ukhetho lwangoku olufanelekileyo ngaphandle kokuchaphazela umsebenzi oqhelekileyo webhetri. .

Ukuba lunikezelo lwamandla lomamkeli wekhompyuter, ekukhetheni ixesha lokuqwalasela amandla alinganisiweyo omamkeli.

Oku kunento yokwenza nomthamo webhetri yethu.

Ngenxa yokuba i-current inkulu, ngoko ilahleko yangoku inkulu, amandla okuphuma aya kuncitshiswa ngokufanelekileyo;Kwangaxeshanye, imveliso yangoku enkulu ikwathetha ubushushu obuninzi, iimfuno eziphezulu zamandla kunye nokwanda kweendleko zenkqubo.

Ke ekukhetheni ukutshintshwa kwamandla amabini kufuneka kuthathelwe ingqalelo yangoku, ukutshintsha rhoqo, igalelo lombane kunye nezinye izinto.

Ezintathu, ukuba umthwalo omkhulu, ezifana motherboard computer, ikhadi lemizobo, CPU ezifana izixhobo zemveliso ephezulu-amandla, ukuze kuqinisekiswe ukuba isixhobo kwixesha elide engaphazanyiswa inkqubo yonikezelo lwamandla ukuqhubeka ukusebenza, kuyacetyiswa ukuba ukhethe ezifanelekileyo. yangoku

Xa umbane wezixhobo awukho mkhulu, ungasebenzisa imveliso encinci yangoku, engaqinisekisi kuphela ukuzinza kwesekethe kwixesha elide lokunikezelwa kwamandla okuqhubekayo, kodwa kunciphisa impembelelo kumacandelo emveliso.

Ukuba uyilo aluyi kuqwalasela inkqubo kwindawo yonikezelo lwamandla olungaphazamisekiyo ukuba isebenze ngokuqhelekileyo kwaye idinga ukusebenza rhoqo, unokukhetha inguqu enkulu yangoku yamandla amabini.

Xa usebenzisa iiswitshi zamandla ezimbini, qiniseka ukuba unika ingqalelo kula manqaku alandelayo:

1. Ukutshintsha kwamandla amabini kungcono ukusebenzisa imodeli yokukhusela ukushisa;2. Qinisekisa ukuba i-voltage ihlala ingaphakathi kuluhlu olukhuselekileyo ngexesha lokusetyenziswa;3. Zama ukusebenzisa umbane omkhulu wangoku ophindwe kabini, unokuphucula ukusebenza kozinzo lwesekethe;4. Kuyilo, zama ukuqwalasela unikezelo lwamandla oluqhubekayo lwexesha elide kunye nemfuno eqhubekayo yokunikezelwa kwamandla kumthwalo ophumayo, kwaye uqwalasele ukuzinza kwayo.

Isine, Ukuba sifuna ukubonelela amandla kwizixhobo okanye eminye imithwalo emikhulu:

· Xa kufuneka unikezelo lwamandla amabini, unikezelo lwamandla olumbini kunye nomsinga phakathi konikezelo lwamandla amabini aphindwe nge-1.5 yexabiso elilinganisiweyo, okanye umlinganiselo okhoyo ngoku yi-100A, okanye umlinganiselo okhoyo ngoku ngamaxesha ama-2 uya kukhethwa.

· Unikezelo lwamandla anamandla aphezulu kunye nokumelana nomthwalo ophantsi kufuneka kukhethwe xa kufuneka kunikezelwe ngoku okukhulu.

· Ukuba sifuna ukufaka umbane kwisixhobo esithile, kufuneka sisebenzise umbane ophindwe kabini.

Ezintlanu, ukuba asinazo iimfuno ezingqongqo kwimeko yokusebenza kwesixhobo.

Ukuba iimfuno zesixhobo ziphantsi kakhulu, ezifana <50A yangoku, <1A amandla aphumayo.

Ukuze uthintele ukugcwala (okufana nokuphezulu kakhulu), ngokuqhelekileyo xa amandla emveliso emancinci kakhulu, akakwazi ukusebenzisa umsinga omkhulu okanye i-voltage.

Singasebenzisa kuphela ukutshintshwa kwamandla amabini kunye ne-resistor yokunciphisa yangoku kunye nomlinganiselo ophezulu wangoku ukuhlangabezana neemfuno.

Ukuba ireyithi yangoku incinci, ungasebenzisa umsinga omkhulu wokutshintsha kwamandla amabini.