Chii chinonzi hFE pane multimeter
hFE iyuniti yekuyera yekuona iyo ikozvino pfuma (kana kuwana) iyo transistor inogona kupa. Mune mamwe mazwi, hFE ireshiyo pakati peiyo yekupinda ikozvino uye inobuda kubuda ikozvino, uye inogona kushandiswa kuona kuti yakafanira sei imwe transistor yedunhu kana application.
hFE pane multimeter chinhu chinoyera kuwedzera kana kuderera kwemagetsi pakati pezvikamu zviviri, nemamwe mazwi, "hFE kukosha pane multimeter inoratidza kuti yakawanda sei ikozvino iyo transistor inogona kubata isati yatanga kupisa uye kukundikana." Semuenzaniso: kana iyo yekuisa ikozvino iri imwe volt papoint A uye imwe amp yekupinza ikozvino papoint B, inobuda voltage ichava imwe amp nguva imwe volt nguva hFE. Kana hFE iri gumi, inobuda ikozvino ichave gumi amps.
hFE tsananguro
Kuputsa iyi equation pasi, tinogona kuona kuti Ic ndiye "muunganidzi izvozvi" uye Ib ndiyo "base ikozvino". Kana aya mazwi maviri akapatsanurwa pamwechete, isu tinowana iyo ikozvino pfuma ye transistor, inowanzonzi hFE.
hfe zvinorevei?
hFE inomirira "Hybrid Direct Emitter". Iyo inozivikanwawo se "forward beta" mune dzimwe nguva. Izwi rinobva pachokwadi chekuti reshiyo inomiririra musanganiswa wezviyero zviviri zvakasiyana: kunyanya base ikozvino kuramba uye emitter ikozvino kuramba. Vanowanzwa pamwechete kugadzira izvo zvatinoziva sehFE.
Chii chinonzi hFE bvunzo?
Muedzo unoyera kuwana (kana kuwana) kwetransistor. Kuwana kunotsanangurwa sechiyero chechiratidzo chekubuda kune chiratidzo chekuisa. Inowanzo kunzi "beta" (β). Iyo transistor inoita seamplifier, ichiwedzera yazvino kana voltage pakubuda kwayo zvinoenderana neinopinza, ichichengetedza inogara ichibuda impedance. Kuti uone kana transistor ichaita zvakanaka muchikumbiro, kuwana kwayo kunofanirwa kuyedzwa uye kuenzaniswa neinodiwa pakushandisa ikoko. (1)
hFE inoverengwa sei?
hFE inoverengerwa nekuenzanisa iyo base ikozvino uye muunganidzi ikozvino. Aya mafungu maviri anofananidzwa uchishandisa transistor tester iyo inokutendera kuti uedze iyo transistor iri mubvunzo. Iyo transistor tester inobata hwaro hwazvino pachiyero chenguva dzose uye inoyera muunganidzi ikozvino inoyerera kuburikidza nayo. Kana uchinge uine ese maviri aya zviyero, unogona kuverenga hFE.
Nekudaro, kune mashoma akakosha mabheti kune iyi nzira yekuyedza yako transistors. Semuenzaniso, iwe unofanirwa kuziva kuti kana ukayera boka rema transistors pamwe chete, ivo vanokanganisa kuverenga kweumwe neumwe. Izvi zvinoreva kuti kana iwe uchida kuyera nemazvo hFE hunhu hwema transistors ako, zviri nani kuvayedza imwe panguva. Kunyange izvi zvichigona kudzikamisa maitiro ekuyedza, zvakare inovimbisa huchokwadi hwemhedzisiro.
kurumbidza
(1) Beta Version - https://economictimes.indiatimes.com/definition/beta
Vhidhiyo links
