Teeb meem 1: UPS fais fab mov tso zis ib txwm thaum muaj hluav taws xob, tsis muaj hluav taws xob buzzer beeping, tsis muaj cov zis
Kev soj ntsuam tsis ua haujlwm: txiav txim los ntawm qhov tshwm sim ntawm lub roj teeb thiab inverter ib feem ntawm qhov tsis ua haujlwm
Cov tswv yim daws teeb meem: 1, xyuas lub roj teeb hluav taws xob kom pom tias lub roj teeb tsis muaj hluav taws xob, yog tias lub roj teeb qis dua, xyuas seb lub roj teeb nws tus kheej puas yog qhov txhaum lossis kev them nqi hluav taws xob.
2, yog hais tias lub roj teeb ua hauj lwm voltage yog li qub, xyuas seb lub inverter tsav Circuit Court puas ua hauj lwm ib txwm, yog hais tias tus tsav Circuit Court tso zis yog ib txwm, nws txhais tau hais tias lub inverter puas.
3, yog hais tias lub inverter tsav Circuit Court tsis ua hauj lwm ib txwm, xyuas seb lub waveform tiam Circuit Court muaj PWM tswj teeb liab tso zis, yog hais tias muaj kev tswj teeb liab tso zis, nws txhais tau hais tias qhov txhaum nyob rau hauv lub inverter tsav Circuit Court.
4, Yog hais tias lub waveform tiam Circuit Court tsis muaj PWM tswj lub teeb liab tso zis, xyuas seb cov zis yog thaiv los ntawm kev tiv thaiv Circuit Court ua hauj lwm, yog hais tias yog li ntawd, txheeb xyuas vim li cas rau kev tiv thaiv;
5, yog hais tias qhov kev tiv thaiv Circuit Court tsis ua hauj lwm thiab qhov ua hauj lwm voltage yog ib txwm, thiab lub waveform tiam Circuit Court tsis muaj PWM waveform tso zis, nws txhais tau hais tias lub waveform tiam Circuit Court puas.
Teeb meem 2: Inverter fais fab theem ib khub ntawm amplifier transistor puas, hloov tib hom transistor, tom qab lub sijhawm ua haujlwm thiab hlawv
Kev soj ntsuam tsis ua haujlwm: qhov tam sim no loj dhau
Kev daws: 1, overcurrent tiv thaiv tsis ua haujlwm. Thaum lub inverter tso zis overcurrent, overcurrent tiv thaiv Circuit Court tsis ua hauj lwm;
2, pulse width modulation (PWM) tivthaiv tsis ua hauj lwm, qhov tso zis ntawm ob qhov sib ntxiv waveform tsis sib luag, lub sijhawm ua haujlwm ntev, thaum lwm lub sijhawm ua haujlwm luv luv, kom ob txhais tes ua haujlwm tsis sib npaug, lossis txawm tias ob txhais caj npab ntawm lub tib lub sijhawm, ua rau muaj kev puas tsuaj rau ob lub raj;
3, lub hwj chim raj tsis sib txawv heev, txawm hais tias lub input symmetric waveform, cov zis yuav asymmetric, lub waveform los ntawm cov zis transformer, uas yog, lub flux yog tsis sib npaug, lub tsub zuj zuj ntawm transformer saturation thiab tam sim no surge. , hlawv lub hwj chim raj, thiab ib tug hlawv, lwm tus kuj hlawv.
