Rectifier diode - qhov kev piav qhia ntawm cov tsis thiab cov yam ntxwv ntawm

Rectifier diode - ib tug siv hluav taws xob rau converting ib qhov tam sim no mus rau hauv ib qho alternating tam sim no. Qhov no yog ib ob-electrode ntaus ntawv, uas muaj tsuas yog ib-txoj kev (unipolar) fais conductivity. Rectifier diode ntawm semiconductor cov ntaub ntawv thiab thiaj li hu ua diode choj (thaum plaub diodes yog kev cob cog rua diagonally nyob rau hauv officers nyob rau hauv ib tug cov ntaub ntawv) hloov ignitron thiab lub tshuab nqus tsev diode.

Cov nyhuv ntawm rectification ntawm alternating tam sim no thiab hloov nws mus rau hauv ib tug mus tas kev hloov tshwm sim nyob rau semiconductor-hlau, hlau-semiconductor los yog lub thiaj li hu ua electron-qhov kev hloov nyob rau hauv ib co muaju (e.g., pob zeb ntais, germanium, selenium, tooj liab oxide). Tej muaju feem ntau lub hauv paus ntawm lub ntaus ntawv.

Semiconductor rectifier diode siv nyob rau hauv electronics, hluav taws xob thiab hluav taws xob pab kiag li lawm. Nyob rau hauv qhov tseeb, lub wires - qhov no transformation alternating tam sim no (voltage) mus rau ib tug tam sim no ntawm ib tug polarity (pulsating DC). Qhov no hom ntawm rectification xav tau nyob rau hauv lub kos duab rau kev qhib thiab kaw hluav taws xob circuits, switching thiab nrhiav kom tau ntawm hluav taws xob Pib ntsais koj teeb thiab pulses, thiab rau ntau lwm yam zoo xws transformations. Tej diode yam ntxwv xws li kev kawm, stability tsis, lub peev xwm ntawm pn junctions tsis yuam ua hauj lwm kom qhia rau nws tej yam tshwj xeeb uas yuav tsum tau.

Xws li ib tug ntaus ntawv muaj ib tug tej yam hluav taws xob tsis thiab cov yam ntxwv ntawm cov diodes:

- pem hauv ntej voltage ntawm hais tias tam sim no tus nqi (npaum li cas hauv nruab nrab tus nqi) ;

- rov qab tam sim no rau ib lub muab tus nqi ntawm qhov rov qab voltage thiab kub (nruab nrab tus nqi) ;

- lub amplitude qhov tseem ceeb rau lub siab tshaj plaws permissible rov qab voltage;

- qhov nruab nrab nqi ntawm cov pem hauv ntej tam sim no;

- zaus qhov tseem ceeb tsis muaj txo hom;

- kuj.

Rectifier diode yog feem ntau abbreviated tsuas hu ua ib tug rectifier. Raws li ib feem ntawm cov Circuit Court, nws muaj siab kuj mus rau ib tug tam sim no uas ntws nyob rau hauv ib tug coj thiab tsis muaj los uas tshwm sim nyob rau hauv lub rov qab cov kev taw qhia. Qhov no ua rau ib tug tam sim no rectification.

Nyob rau hauv ib tug ntaus ntawv xws li ib tug diode rectifier, ib tug txaus me me ntau zaus. Kev khiav hauj lwm zaus kom muaj kev siv xws li ib tug ntaus nrog ib tug AC rau DC hloov dua siab tshiab yog 50 Hz. Tsis txhob zaus yog suav tias yog yuav tsis muaj ntau tshaj li 20 kHz.

Rectifier diode li cov hluav taws xob ntaus ntawv yuav tsum tau muab faib mus rau hauv ob peb pawg raws li qhov nruab nrab nqi ntawm cov nyiaj pab ntau tshaj direct tam sim no. Qhov no tsis tshua muaj hwj chim diode (0.3 amps), medium hwj chim (los ntawm 0.3 A mus rau 10 A) thiab hnyav dej num (hwjchim) rectifier diodes (ntau tshaj li kaum amperes).

Lub ntsiab tsis muaj xws hluav taws xob xws li ib tug rectifier diode, thiab yuav tsum muaj xws li cov kev khiav hauj lwm ntau yam rau lub ambient kub (feem ntau yog nws yog hom twg los ntawm -50 mus +130 degrees Celsius rau feem ntau ntau hom diode - silicon) thiab lub siab tshaj plaws lub cev kub (muaj ntau hom tsis, nyob ntawm seb lub hwj chim ntawm lub sij hawm thiab lub chaw tsim tshuaj paus).