Muaj ntau txoj hauv kev los tiv thaiv cov surge tam sim no.Feem ntau, cov kev txwv tam sim no yog siv los txo cov surge tam sim no hauv cov khoom siv hluav taws xob me me thiab nruab nrab.Cia saib seb yuav siv NTC thermistor li cas rau kev tawm tsam tam sim no.
NTC thermistors, tseem hu ua qhov tsis zoo kub coefficient thermistor, yog tus cwj pwm los ntawm qhov tsis zoo-linear poob rau hauv tus nqi tsis kam raws li qhov kub nce.NTC feem ntau muab faib ua qhov ntsuas kub ntsuas thermistor thiab lub zog hom thermistor hauv daim ntawv thov.NTC thermistor siv los tiv thaiv surge yog hais txog lub hwj chim hom thermistor.
Nyob rau hauv chav tsev kub, NTC thermistor muaj tus nqi siab dua, uas yog lub npe tsis muaj zog tiv thaiv tus nqi.Xws li 10 Ω concatenated NTC, khau raj surge tam sim no rau: I = 220 x 1.414 / (1 + 1) = 28 (A), ntau dua tshaj 311 A tsis yog thaum siv NTC thermistor txo 10 zaug, ua haujlwm zoo ua lub luag haujlwm ntawm inhibition ntawm surge tam sim no.
Khau raj tom qab, vim hais tias ntawm NTC thermistor kub taub hau, kub nce sai heev, nws kuj yuav nyob rau hauv lub millisecond lub sij hawm poob sai sai mus rau theem ntawm ib tug me me, feem ntau tsuas yog ib feem ntawm qhov luaj li cas ntawm cov teb chaws Europe mus rau ob peb European, piv nrog rau cov tsoos tsau tsis kam. tam sim no limiting resistor, uas txhais tau hais tias qhov kev tiv thaiv ntawm lub zog noj rau poob tsis kam txo cov qhab nia mus rau ib puas lub sij hawm, yog li tus tsim yog heev haum rau muaj siab thov rau conversion efficiency thiab lub zog txuag cov khoom, xws li switching fais fab mov.
Tom qab lub hwj chim tsis ua hauj lwm, NTC thermistor nrog nws tus kheej txias, tus nqi kuj yuav maj mam rov qab mus rau lub nominal xoom fais fab tuag tus nqi, lub sij hawm rov qab xav tau kaum vib nas this mus rau ob peb feeb.Lub sij hawm tom ntej koj pib, rov ua cov txheej txheem saum toj no.
Post lub sij hawm: Oct-26-2021