Common Failures ntawm Voltage Regulators
Tshuab Fuse
Feem ntau, lub tshuab hluav taws xob qhia tias muaj teeb meem nrog cov kab hluav taws xob sab hauv ntawm cov khoom siv hluav taws xob. Raws li cov khoom siv hluav taws xob ua haujlwm nyob rau hauv high voltage, high tam sim no lub xeev, qhov hloov ntawm daim phiaj voltage, surge yuav ua rau ib tug instantaneous nce nyob rau hauv tam sim no nyob rau hauv lub hwj chim mov thiab ua rau lub fuse tshuab. Ua kom pom tseeb yuav tsum xyuas lub hwj chim input rectifier diode, high-voltage filtering electrolytic capacitors, inverter fais fab hloov raj, thiab lwm yam., xyuas seb cov khoom no puas muaj kev puas tsuaj, qhib Circuit Court, puas, thiab lwm yam. ua ntej saib cov khoom siv hauv Circuit Court, saib cov tsos ntawm cov khoom no tsis tau raug hlawv, tsis muaj electrolyte dhau, yog tias koj tsis pom qhov teeb meem saum toj no, ces siv lub multimeter los ntsuas lub raj hloov nrog lossis tsis muaj luv- kev tawg ntawm Circuit Court. Kev saib xyuas tshwj xeeb yuav tsum tau them rau: Tsis txhob hnov qab tias thaum twg cov khoom raug puas tsuaj, hloov nws ncaj qha tom qab khau raj, yog li ntawd nws yuav zoo li lwm cov khoom siv hluav taws xob tseem tsis raug thiab yuav hloov cov khoom puas tsuaj, nco ntsoov xyuas tag nrho. cov high-voltage Cheebtsam ntawm lub Circuit Court saum toj no ** kuaj ntsuas nyob rau hauv thiaj li yuav txiav txim tag nrho cov txhaum ntawm lub tshuab fuse.
Feem ntau faults ntawm voltage stabilized fais fab mov
Tsis muaj DC voltage tso zis los yog tsis ruaj tsis khov voltage tso zis
Yog tias lub fuse tsis zoo, tsis muaj DC qhov hluav taws xob tso tawm ntawm txhua theem hauv qab load. Qhov xwm txheej no feem ntau tshwm sim los ntawm cov laj thawj hauv qab no: lub zog qhib hluav taws xob, qhov tshwm sim luv luv Circuit Court, dhau-voltage, dhau-tam sim no tiv thaiv Circuit Court tsis ua hauj lwm, pab fais fab mov tsis ua hauj lwm, oscillation circuit tsis ua hauj lwm, fais fab mov overload, high-frequency rectifier lim. Circuit Court rectifier diode yog punctured, to ntawm lim capacitors thiab hais txog. Nyob rau hauv kev siv ib tug multimeter los ntsuas qhov thib ob Cheebtsam, txiav tawm lub high-frequency rectifier diode breakdown, luv luv-circuit load, yog hais tias cov zis yog xoom nyob rau hauv lub sij hawm no, koj yuav paub tseeb tias lub hwj chim mov tswj Circuit Court tsis ua hauj lwm. Yog hais tias muaj ib feem ntawm cov zis voltage qhia tau hais tias lub pem hauv ntej theem Circuit Court ua hauj lwm zoo, qhov txhaum yog nyob rau hauv lub high-frequency rectifier lim circuit. High-frequency lim Circuit Court yog tsim los ntawm rectifier diode thiab low-voltage filter capacitor DC voltage output, uas rectifier diode breakdown yuav ua rau lub Circuit Court tsis muaj hluav taws xob tawm, lim capacitor to yuav ua rau cov zis tsis ruaj khov thiab lwm yam txhaum. Nrog ib tug multimeter static ntsuas ntawm cov khoom sib thooj tuaj yeem kuaj xyuas ntawm cov khoom puas.
Tsis zoo load peev xwm ntawm lub hwj chim mov
Lub peev xwm tsis zoo ntawm cov khoom siv hluav taws xob yog qhov ua tsis tau zoo, feem ntau nyob rau lub sijhawm qub lossis ntev ua haujlwm ntawm cov khoom siv hluav taws xob, qhov laj thawj tseem ceeb yog kev laus ntawm cov khoom, lub raj hloov pauv tsis ruaj khov, tsis muaj cua sov raws sijhawm thiab lwm yam. Yuav tsum tsom mus xyuas seb qhov voltage regulator diode heat to, rectifier diode puas, high-voltage filter capacitor puas.,,
