Lub tshuab tiv taus hluav taws xob yog qhov pib ntawm hluav taws xob. Tsis zoo li transistors thiab diodes, tus resistor yog ib qho khoom nkag siab dhau. Tus tiv thaiv zoo tagnrho tiv thaiv tsuas yog cov tsis kam ntawm cov hluav taws xob tam sim no, tab sis txij li thaum nyob rau hauv lub ntiaj teb cov ntaub ntawv tsis muaj qhov zoo tagnrho, tom qab ntawd hauv kev muaj tiag cov resistor muaj ib qho non-line I - V yam ntxwv thiab parasitic capacitance thiab inductance. Feem ntau, ib qho resistor zoo tib yam yog thav duab nrog cov xaim hluav taws xob loj uas nyob ib puag ncig nws, tab sis kuj tseem muaj cov thev naus laus zis tiv thaiv (nrog hloov tsis kam).
Tsim nyog
xaum xaim, hlau xaim, ntawv txiav, ntawv kheej kheej, nichrome
Cov Lus Qhia
Kauj ruam 1
Ua kom yooj yim kuj tsis paub meej resistor. Siv ib tus cwj mem yooj yooj yim thiab ua tib zoo txiav nws hauv ib nrab ntev. Tsis txhob puas rau graphite txhuas.
Kauj ruam 2
Ntawm ib qho kawg ntawm ib nrab ntawm xaum, nyob rau hauv uas cov txhuas tseem tshuav, cua ntau hloov ntawm xaim. Cua lub xov hlau kom nws nyob hauv kev sib cuag nrog cov txhuas.
Kauj ruam 3
Tom ntej no, siv ib daim ntawv txiav xaub thiab xaub nws hla xaum. Cov hlau yuav yog qhov sib chwv tas, thiab daim ntawv txiav yuav yog qhov kev txav ib qho. Raws li koj hloov daim ntawv hla ntawm xaum qhuav, qhov tsis kam ntawm cov qhob resistor yuav hloov.
Kauj ruam 4
Ua kom ruaj khov tiv taus. Siv ib lub tog raj kheej tej hub thiab cua nichrome hlau ncig nws. Ua ntej ua qhov no, laij cov tuab thiab ntev ntawm cov hlau.
Kauj ruam 5
Cia hais tias lub resistor yuav tsum yog 100 tons, thiab qhov voltage yuav tsum yog 50 V. Siv tus qauv: Kuv = P / U, qhov twg kuv yog qhov tam sim no, P yog lub zog, U yog qhov voltage. Tom ntej no, ntsaws rau hauv lub qhov tseem ceeb. Koj yuav tau txais: Kuv = 100/50 = 2 amperes.
Kauj Ruam 6
Hauv phau ntawv qhia, saib dab tsi ntu ntawm nichrome hlau tuaj yeem tiv taus xws li tam sim no. Tom qab ntawd, winding lub resistor nrog cov xaim tsim nyog, ntsuas qhov ua haujlwm. Raws li koj cua nce mus rau qhov tsis kam ntawm tus nqi uas yuav tsum tau, txhim kho cov hlau coj thiab qhov ntawd yog nws, lub resistor yog npaj txhij.
