Yuav ua li cas ntsuas ob peb voltages nyob rau hauv ib tug switching fais fab mov?
Voltages ntawm cov ntsiab lus tseem ceeb ntawm lub zog hloov hluav taws xob yog.
AC input voltage, ib theem AC 220V.
DC tsheb npav voltage, ib-theem AC 220V rectified thiab lim rau DC 310V voltage.
Yog hais tias lub zog hloov hluav taws xob yog chav tswj fais fab nti, xws li UC3844 lub zog tswj chip pin voltage kuj yog qhov tseem ceeb ntawm qhov hluav taws xob, xws li nws 7 feet 15-18V, 8 feet ntawm tus qauv siv taw qhia 5V, xws li zoo li nws 1 ko taw, 3 ko taw, 4 ko taw, 6 taw kuj tseem ceeb point voltage.
Hloov fais fab mov tso zis voltage, qhov piv txwv no tso zis voltage yog 5V thiab 16V.
Yuav ua li cas txheeb xyuas thiab ntsuas qhov tseem ceeb point voltage
AC ib-theem fais fab mov voltage 220V thiab DC tsheb npav 310V voltage ntawm ob lub hwj chim mov voltage, AC input fais fab mov voltage ib txwm tsis tas yuav hais, ncaj qha nrog multimeter AC cov ntaub ntawv los ntsuas, DC tsheb npav voltage nrog multimeter DC cov ntaub ntawv, nqa cov liab lub rooj cwj mem ntawm DC tsheb npav electrolytic capacitor zoo, tus cwj mem dub ntawm qhov tsis zoo ntawm nws, yog li koj tuaj yeem ntsuas qhov DC tsheb npav voltage.
Kev tswj fais fab nti pin voltage yog ntsuas nrog multimeter DC voltage iav, tus cwj mem dub hauv UC3844 5 ko taw, tus cwj mem liab txhawm rau ntsuas qhov kev txiav txim ntawm 7 feet, 5 feet, 4 feet, 6 feet, 3 ko taw, 1 ko taw ntawm qhov hluav taws xob. Ntawm lawv, 4 ko taw, 6 ko taw nrog oscilloscope los ntsuas cov zis waveform, unconditional pointer yuav siv tau los saib tus pointer viav vias rau hauv ib qho qauv.
Hloov fais fab mov ob qhov tso zis hluav taws xob 5V, 16V, hloov lub zog hluav taws xob yog tias muaj qhov tso zis hluav taws xob ncaj qha nrog DC cov ntaub ntawv ntsuas, yog tias tsis muaj qhov cim ntawm qhov hluav taws xob thib ob ntawm qhov hloov hluav taws xob electrolytic capacitance raws li kev txheeb xyuas ntawm lub hauv paus. rau lub electrolytic capacitance ntawm high voltage yog 16V tso zis, tsawg voltage rau 5V tso zis, xws li 16V output circuit electrolytic capacitance ntawm 35V470UF, 5V output circuit electrolytic capacitance ntawm 16V1000UF, ntawm no yog ib lub tswv yim zoo. 16V1000UF, ntawm no nrog lub ntsuas ntsuas digital tsis paub qhov txawv ntawm qhov zoo thiab qhov tsis zoo, thiab tsis txhob sib txawv ntawm cov cwj mem liab thiab dub ncaj qha ntsuas lub peev xwm ob txhais taw yog qhov tso zis hluav taws xob.
Yuav ua li cas txheeb xyuas lub xeev ua haujlwm ntawm lub zog hloov hluav taws xob
-Yog tias koj ntsuas lub zog hloov hluav taws xob ob tsis muaj qhov hluav taws xob tso tawm, thiab tom qab ntawd cov ntaub ntawv multimeter DC mus rau qhov ntau ntawm cov ntaub ntawv DC tsawg tshaj plaws thiab ntsuas, yog tias cov zis hluav taws xob tsis muaj zog, qhov hloov hluav taws xob hloov hluav taws xob, lub zog tsis ua haujlwm lossis load tsis ua hauj lwm. Yog hais tias disconnect lub switching fais fab mov load, lub switching fais fab mov tso zis yog tseem xoom tso zis, ces cov zis Circuit Court yog luv luv-circuited. Yog hais tias cov zis hluav taws xob yog luv luv-circuited, lub zog hloov hluav taws xob tsis vibrating kiag li.
Disconnect lub switching fais fab mov thiab tam sim ntawd ntsuas lub DC tsheb npav voltage ntawm lub switching fais fab mov, thiab ntsuas lub DC tsheb npav lim capacitance nrog DC iav, yog hais tias lub voltage txo maj mam thiab linearly, nws txhais tau hais tias lub switching fais fab mov yog vibrating, yog hais tias tus voltage txo. txo qis qis thiab linearly, nws txhais tau hais tias qhov hloov hluav taws xob hloov pauv tsis vibrating. Qhov hloov hluav taws xob hloov kev co, yog tias nws tuaj yeem tswj tau qhov hluav taws xob 310V rau lub sijhawm ntev tsis tuaj yeem txo qis yog tsis nyob rau hauv lub zog hluav taws xob kev co. Nco tseg! Tsis txhob vibrate lub switching fais fab mov Tom qab lub hwj chim tsis ua hauj lwm, tseem muaj high voltage, lub lag luam yuav tsum hnav hnab looj tes.
