Tshuab hluav taws xob tshuaj teeb: diode thiab triode

Cia tus tham txog lub tshuab hluav taws xob tshuaj li qub.

Yuav ua li cas yog lub tshuab hluav taws xob tshuaj teeb?

Tshuab hluav taws xob tshuaj teeb - yog hluav taws xob khoom siv nrog ib tug tej xov tooj ntawm cov electrodes hais tias ib tug hluav taws xob tam sim no xwb nyob rau hauv ib tug coj. Los ntawm cov xov tooj ntawm cov electrodes nyob rau hauv lub npe ntawm lub teeb: diode (ob electrodes), ib tug triode (peb electrodes), pentode (tsib electrodes), etc. Lawv siv nyob rau hauv hluav taws xob engineering, electronics, lub hwj chim thiab ntau lwm yam lag luam yuav kom rectify qhov alternating hluav taws xob tam sim no .. raws li zoo raws li muaj feem xyuam rau qhov tam sim no zaus, ua raws li cov ntes thiab hloov lub hwj chim voj voog. Koj tsis paub vim li cas muaj ib tug diode thiab triode? Taug kev mus rau kev kho mob nkeeg no kis.

diode

Ib tug diode yog ib qho hluav taws xob tshuaj teeb nyob rau hauv uas muaj ob electrodes. Diodes thiab transistors ntawm txawv kho vajtse tivthaiv yog tus naj npawb ntawm electrodes, nco ntsoov qhov no. Nyob rau lub hauv paus ntawm lub cev txhooj, qhov kev siv ntawm lawv functionality yog muab faib ua tej yam (feem, txhua hom yog muab faib mus rau hauv ib tug xov tooj ntawm sub-hom):

1. Electric lub tshuab nqus tsev. Siv rau rectification. Thaum rhuab mus rau lub yam kub ntawm lub cathode (thaum muaj ib tug thermoelectric emission) yog noj mus rau lub anode txheeb ze mus rau lub cathode voltage yog zoo. Ces ib feem ntawm lub liberated electrons qhia ntawm lub anode, thiab cov diode tam sim no yog tsim. Yog hais tias qhov no tsis tshwm sim, ces tus electrons rov qab mus rau lub cathode.

2. Tawm. Siv rau kev loj hwj chim amplifiers thiab stabilization ntawm loj stresses. Sawv cev rau ib cathode thiab ib tug anode yog muab tso rau hauv ib tug inert roj los yog roj sib tov nyob rau hauv ib tug tej yam siab.

3. Semiconductor. Tau daim ntawv sau npe yog heev ntau haiv neeg. Yog li nyob rau hauv uas lub rectified hluav taws xob kev hloov thiab muaj ob lwm tso zis. Raws li muab daws kom tiav hluav taws xob kev hloov yog ib tug pn hlws ris, ib tug semiconductor-hlau hu los yog giperperehoda.

triode

Tsis zoo li diode, triode, tsuas yog cov anode thiab cathode, thiab muaj ntau tswj electrode, uas yog hu ua ib daim phiaj. Nyob nruab nrab ntawm lub anode thiab cov cathode los tswj daim phiaj tso cai rau lub teeb electron txaus los hloov tus loj thiab polarity ntawm lub voltage ntawm daim phiaj thiab cathode. Nws yog vim hais tias ntawm no muaj peev xwm yog hu ua daim phiaj tswj.

Net, nyob rau hauv Feem ntau, yog ib tug helix ntawm nyias hlau uas puag ncig lub cathode. Tsim los ntawm npib tsib xee, molybdenum, lawv alloys, thiab tantalum, thiab tungsten. Lub sab lub peev xwm ntawm daim phiaj, qhov ntau ua hauj lwm tau ua ib tug electron mus rau lub teb. Nyob rau hauv tej yam tsis zoo qhov tseem ceeb ntawm voltage, tsis muaj electron yuav tsis tau kom tsis txhob rau daim phiaj teb, thiab cov anode tam sim no ntawm cov transistor yuav pes tsawg. Triols yog feem ntau siv rau boost lub teeb liab thaum tau txais kav hlau txais xov kab teeb.

kev siv tswv yim

Lub transistor thiab diode, lub physics ntawm lawv cov kev siv muaj enabled zoo kauj ruam rau pem hauv ntej txoj kev loj hlob ntawm txhua yam uas yog kev cob cog rua nrog hluav taws xob. Nws yog ib qhov nyuaj rau xav txog tej yam tsis muaj radios, TV, computers, xov tooj, thiab lwm yam uas. Diodes thiab transistors siv tsis tau tsuas yog nyob rau hauv loj-scale lawm, tab sis kuj los ntawm xov tooj cua amateurs thiab xov tooj cua electronics nyob rau hauv lawv lub tsev thwmsim. Nws yog ib qhov nyuaj rau xav txog tej yam tus siab heev luam Circuit Court board, uas yuav tswj cov complex technology, thiab nyob rau hauv uas yuav muaj hluav taws xob tshuaj yaj. Diodes thiab transistors muaj ib tug heev ntau yam ntawm daim ntawv sau npe, ces tus xub ntiag ntawm ob peb ntawm cov tsis siv ntaus ntawv los ntawm tej nqaij npua xov tooj cua yog yuav luag guaranteed. Tab sis lawv ua daim ntawv thov yuav tsum tau ceev faj - nws yog khoom siv, uas ua hauj lwm nrog ib tug voltage, txawm yog hais tias nws yog me me, tab sis lub txim yuav tsum muaj tsawg kawg tsis kaj siab uas raug nqi ntau muaj kev ruaj ntseg cov kev cai.