Lub ntsiab lus ntawm Kuv Thiab O Rocker Hloov
Jan 02, 2023
Kuv nyob, O yog tawm. Cov keyboards kuj tau sawv cev los ntawm lwm cov cim, uas yog ON thiab OFF, qhov twg cov cim OFF yog tawm thiab ON yog nyob rau.
Lub ntsiab lus ntawm lub zog hloov lub cim:
Txoj hauj lwm ntawm "I" sawv cev rau tus lej "1", uas txhais tau hais tias nyob rau, sib npaug rau theem teeb liab ntawm.
Txoj haujlwm "O" sawv cev rau tus lej "0", uas txhais tau tias tawm, sib npaug rau theem teeb liab tawm.
"Kuv" thiab "O" feem ntau yog cim ntawm ob qho kawg ntawm lub pob ntawm lub nkoj (warped) hloov. Ib qho kev tsim ntau tshaj plaws yog kos lo lus "ON" ntawm "Kuv" kawg ntawm qhov hloov thiab lo lus "OFF" ntawm "O" kawg ntawm kev hloov.
Lub hauv paus ntsiab lus ua haujlwm ntawm lub zog hloov lub cim:
Switching fais fab mov yog lub hwj huam mov uas siv cov cuab yeej hluav taws xob niaj hnub siv hluav taws xob los tswj lub sij hawm piv ntawm lub raj xa hluav taws xob kom qhib thiab tawm kom tswj tau qhov hluav taws xob ruaj khov. Kev hloov hluav taws xob feem ntau yog tsim los ntawm pulse width modulation (PWM) tswj IC thiab MOSFET.
Cov txheej txheem ua haujlwm ntawm kev hloov pauv hluav taws xob yog yooj yim to taub. Tsis zoo li cov khoom siv hluav taws xob linear, uas tso cai rau lub hwj chim transistor ua haujlwm hauv hom kab, PWM hloov hluav taws xob tso cai rau lub hwj chim transistor ua haujlwm nyob rau hauv lub xeev ntawm on thiab off.
Nyob rau hauv ob lub xeev, cov khoom volt-ampere ntxiv rau lub hwj chim transistor yog me me (ntawm on-off, tam sim no yog tsawg thiab tam sim no siab; Thaum tawm, voltage siab, tam sim no yog tsawg) cov khoom volt-ampere ntawm lub hwj chim ntaus ntawv yog qhov poob ntawm lub hwj chim semiconductor ntaus ntawv.
Piv nrog rau cov khoom siv hluav taws xob tawm, PWM hloov hluav taws xob ua haujlwm tau zoo dua yog los ntawm "chopper", uas yog, cov khoom siv hluav taws xob DC rau hauv cov mem tes voltage amplitude yog sib npaug rau qhov input voltage amplitude kom ua tiav.