"Mushandi wemundege weChina Southern Airlines ane makore makumi maviri nematatu akabatwa nemagetsi achitaura paiPhone5 yake payaichaja", nhau idzi dzakwezva vanhu vakawanda pamhepo.Machaja anogona kuisa hupenyu panjodzi?Nyanzvi dzinoongorora kuvhuvhuta kweshanduro mukati mejaja mbozha mbozha, 220VAC inotsinhanisa yazvino kuvuza kusvika kumagumo eDC, uye kuburikidza nemutsara wedhata kune simbi shell yenhare mbozha, uye pakupedzisira inotungamira kune electrocution, kuitika kwedambudziko risingadzokerike.
Saka nei kubuda kwechaja mbozhanhare kuchiuya ne220V AC?Chii chatinofanira kungwarira pakusarudzwa kwemagetsi ari oga?Nzira yekusiyanisa sei pakati pemagetsi ega uye asiri ega ega?Maonero akajairika muindasitiri ndeaya:
1. Isolated power supply: Iko hakuna yakananga magetsi ekubatanidza pakati peyekupinza loop uye inobuda loop yemagetsi ekupa, uye yekupinda nekubuda zviri mune insulated high-resistance state isina loop iripo, sezvakaratidzwa muFigure 1:
2, isina-yakasarudzika magetsi ekupa:pane yakananga ikozvino loop pakati pekupinda uye kubuda, semuenzaniso, kupinza uye kubuda kwakajairika.Iyo yakasarudzika flyback reketi uye isina-yakasarudzika BUCK dunhu inotorwa semienzaniso, sezvakaratidzwa muMufananidzo 2.Mufananidzo 1 Isolated magetsi ane transformer.
1.Zvakanakira uye zvisingabatsiri zvemagetsi ega ega uye kwete-yega magetsi
Zvinoenderana nemafungiro ari pamusoro apa, kune iyo yakajairika magetsi ekupa topology, iyo isiri-yega magetsi ekushandisa anonyanya kusanganisira Buck, Boost, buck-boost, etc. Iyo yekuzviparadzanisa magetsi inopihwa kunyanya ine dzakasiyana siyana dzekubhururuka, kumberi, hafu-zambuko, LLC uye mamwe matopology ane ega ega transformers.
Yakasanganiswa neanowanzo shandiswa ega uye asiri ega emagetsi emagetsi, isu tinokwanisa intuitively kuwana zvimwe zvakanakira uye zvazvakaipira, zvakanakira uye zvakaipira zvezviviri zvinenge zvakapesana.
Kuti ushandise magetsi ega ega kana akasarudzika, zvinodikanwa kuti unzwisise kuti iro purojekiti chaiyo inoda sei magetsi, asi izvi zvisati zvaitika, unogona kunzwisisa misiyano mikuru pakati pemagetsi ega uye akabatana:
① Iyo yekuzviparadzanisa module ine yakakwirira kuvimbika, asi mutengo wakakwira uye yakaderera kushanda.
②Chimiro cheiyo isina-yakasarudzika module iri nyore kwazvo, yakaderera mutengo, yakanyanya kushanda zvakanaka, uye yakashata kuchengetedzwa kwekuita.
Naizvozvo, mune zvinotevera zviitiko, zvinokurudzirwa kushandisa ega magetsi emagetsi:
① Zvinosanganisira zviitiko zvinogona kuitika zvemagetsi, sekutora magetsi kubva pagridi kuenda kune yakaderera-voltage DC nguva, inoda kushandisa yega AC-DC magetsi;
② Iyo serial yekutaurirana bhazi inotamisa data kuburikidza nemuviri network seRS-232, RS-485 uye controller local area network (CAN).Imwe neimwe yeaya masisitimu akabatana anoshongedzerwa neayo magetsi ekupa, uye chinhambwe pakati pehurongwa kazhinji chiri kure.Naizvozvo, isu kazhinji tinoda kutsaura magetsi ega ega ega kuti tive nechokwadi chekuchengetedzwa kwemuviri kwehurongwa.Nekuzviparadzanisa uye nekucheka loop yepasi, iyo sisitimu inodzivirirwa kubva kune yenguva pfupi yakakwira voltage kukanganisa uye kukanganiswa kwechiratidzo kunoderedzwa.
③ Kune ekunze I/O madoko, kuve nechokwadi chekushanda kwakavimbika kwehurongwa, zvinokurudzirwa kutsaura magetsi eI/O ports.
Tafura yakapfupikiswa inoratidzwa muTable 1, uye zvakanakira nekuipira kwezviviri izvi zvinenge zvakapesana.
Tafura 1 Zvakanakira uye zvakaipira zvega uye zvisiri zvega magetsi emagetsi
2, Sarudzo yesimba rakasarudzika uye risiri rega simba
Nekunzwisisa zvakanakira uye zvakaipira zvemagetsi ega uye asiri ega ega, imwe neimwe ine zvayakanakira, uye isu takakwanisa kuita mutongo wakakwana nezve dzimwe dzakajairwa dzakamisikidzwa magetsi emagetsi sarudzo:
① Iyo magetsi eiyo sisitimu inowanzo shandiswa kuvandudza iyo anti-kukanganisa kuita uye kuve nechokwadi chekuvimbika.
② Simba rekupa IC kana chikamu chedunhu mubhodhi redunhu, kutanga kubva pamutengo-unoshanda uye vhoriyamu, kushandiswa kwakasarudzika kwezvirongwa zvisiri zvekuzviparadzanisa nevamwe.
③ Nezve kuchengetedza zvinodiwa zvekuchengetedza, kana iwe uchida kubatanidza iyo AC-DC yeMagetsi yeMunicipal, kana magetsi ekushandisa pakurapa, kuitira kuti uve nechokwadi chekuchengetedza kwemunhu, unofanirwa kushandisa magetsi.Mune dzimwe nguva, iwe unofanirwa kushandisa simba rekupa kusimbisa kuparadzaniswa.
④ Kune magetsi ekutaurirana kure kwemaindasitiri, kuitira kuti zvinyatso kudzikisa mhedzisiro yekusiyana kwenzvimbo uye waya yekubatanidza kukanganiswa, inowanzoshandiswa kune yakaparadzana magetsi kupa simba imwe neimwe nzira yekutaurirana chete.
⑤ Nekushandisa kwebhatiri simba rekupa, isiri-yega yemagetsi magetsi inoshandiswa kune yakasimba hupenyu hwebhatiri.
Nekunzwisisa zvakanakira nekuipira kwekuzviparadzanisa nevamwe uye kwete-yega simba, ivo vane zvakanakira zvavo.Kune mamwe anowanzo shandiswa akaiswa dhizaini yekugadzira magetsi, tinogona kupfupisa nguva dzesarudzo dzayo.
1.Isolation power supply
Kuti uvandudze mashandiro e-anti-interference uye kuve nechokwadi chekuvimbika, inowanzoshandiswa kushandisa kuzviparadzanisa nevamwe.
Nezve kuchengetedza zvinodiwa zvekuchengetedza, kana iwe uchida kubatana neAC-DC yeMunicipal Electricity, kana magetsi ekushandisa pakurapa, uye midziyo michena, kuitira kuti uve nechokwadi chekuchengetedzwa kwemunhu, unofanirwa kushandisa magetsi, senge MPS MP020, yemhinduro yekutanga AC- DC, yakakodzera 1 ~ 10W zvikumbiro;
Kune magetsi ekure kure maindasitiri ekutaurirana, kuitira kuti zvinyatso kudzikisa mhedzisiro yekusiyana kwenzvimbo uye waya yekubatanidza kupindira, inowanzoshandiswa kune yakaparadzana magetsi kupa simba imwe neimwe yekutaurirana node chete.
2. Non-isolation power supply
Iyo IC kana imwe dunhu mubhodhi redunhu rinofambiswa nehuwandu hwemutengo uye huwandu, uye iyo isiri-yega mhinduro inosarudzwa;senge MPS MP150/157/MP174 yakatevedzana buck isina-yega AC-DC, yakakodzera 1 ~ 5W;
Panyaya yekushanda voltage iri pasi pe36V, bhatiri rinoshandiswa kupa simba, uye pane zvakaomesesa zvinodikanwa zvekutsungirira, uye isiri-yega yemagetsi inodiwa, senge MPS's MP2451/MPQ2451.
Zvakanakira nekuipira kwesimba rekuzviparadzanisa nevamwe uye kwete-yega magetsi ekupa
Nekunzwisisa zvakanakira nekuipira kwekuzviparadzanisa nevamwe uye kwete-yega magetsi ekupa, ivo vane zvakanakira zvavo.Kune dzimwe dzinowanzo shandiswa dzakadzamirirwa magetsi emagetsi sarudzo, tinogona kutevedzera anotevera ekutonga mamiriro:
Nezvekuchengetedza zvinodiwa, kana iwe uchida kubatana neAC-DC yeMagetsi eMunicipal, kana magetsi ekurapwa, kuitira kuti uve nechokwadi chekuchengetedzwa kwemunhu, unofanirwa kushandisa magetsi, uye dzimwe nguva dzinofanirwa kushandiswa. kuwedzera simba rekuzviparadzanisa nevamwe.
Kazhinji, izvo zvinodikanwa zvemodule magetsi ekuzviparadzanisa nevamwe hazvina kunyanya kukwira, asi yakakwira yekuzviparadzanisa yega voltage inogona kuve nechokwadi chekuti moduru yemagetsi ine diki yekudonha ikozvino, kuchengetedzwa kwepamusoro uye kuvimbika, uye hunhu hweEMC huri nani.Naizvozvo Iyo general isolation voltage level iri pamusoro pe1500VDC.
3, kungwarira kwekusarudzwa kweiyo isolation power module
Kupokana kwekuzviparadzanisa kwesimba remagetsi kunonzi zvakare anti-magetsi simba muiyo GB-4943 yenyika standard.Iyi GB-4943 yakajairwa ndiyo miyero yekuchengetedza yemidziyo yeruzivo yatinowanzo taura, kudzivirira vanhu kubva kune yepanyama uye yemagetsi yenyika zviyero, kusanganisira kudzivirira kunzvenga Vanhu vanokuvadzwa nekukuvadzwa kwemagetsi, kukuvara kwemuviri, kuputika.Sezvinoratidzwa pasi apa, chimiro chechimiro chekuzviparadzanisa kwemagetsi.
Isolation simba chimiro dhayagiramu
Sechiratidzo chakakosha cheiyo module simba, chiyero chekuzviparadzanisa uye kumanikidza-resistant yekuyedza nzira inotaridzwawo muyero.Kazhinji, iyo yakaenzana inogona yekubatanidza bvunzo inowanzo shandiswa panguva yekuyedzwa kuri nyore.Iyo yekubatanidza schematic dhizaini ndeiyi inotevera:
Dhiyagiramu yakakosha yekudzivisa kuparadzaniswa
Nzira dzekuedza:
Seta iyo voltage yekupokana kwevoltage kune yakatsanangurwa voltage kuramba kukosha, iyo yazvino inogadzika seyakatsanangurwa yekudonha kukosha, uye iyo nguva yakatarwa kune yakatarwa bvunzo nguva kukosha;
Operating pressure metres tanga kuyedza uye tanga kudzvanya.Munguva yenguva yakatarwa yekuyedzwa, module inofanirwa kunge isina kupepetwa uye isina fly arc.
Ziva kuti iyo welding power module inofanirwa kusarudzwa panguva yekuyedzwa kuti isadzokororwe welding uye kukuvadza iyo module yemagetsi.
Mukuwedzera, teerera:
1. Ngwarira kuti iri AC-DC kana DC-DC.
2. Kuparadzaniswa kweiyo isolation power module.Semuenzaniso, ingave iyo 1000V DC inosangana nezvinodiwa zvekudzivirira.
3. Kunyangwe iyo yekuzviparadzanisa yemagetsi module ine yakazara kuvimbika bvunzo.Iyo module yemagetsi inofanirwa kuitwa nekuyedzwa kwekuita, kuyedzwa kwekushivirira, mamiriro enguva pfupi, kuvimbika kuyedzwa, EMC electromagnetic kuenderana bvunzo, yakakwirira uye yakaderera tembiricha kuyedzwa, kuyedzwa kwakanyanya, kuyedza hupenyu, kuyedza kuchengetedza, nezvimwe.
4. Kunyangwe mutsara wekugadzira weiyo yakasarudzika magetsi module yakamisikidzwa.Iyo magetsi module yekugadzira mutsara inoda kupfuudza akati wandei epasi rese certification se ISO9001, ISO14001, OHSAS18001, nezvimwewo, sezvakaratidzwa mumufananidzo 3 pazasi.
Mufananidzo 3 ISO certification
5. Kunyangwe iyo yekuzviparadzanisa yemagetsi module inoshandiswa kune dzakaomarara nharaunda senge indasitiri nemotokari.Iyo module yemagetsi haingoshandiswe kune yakaoma maindasitiri nharaunda, asiwo muBMS manejimendi system yemotokari nyowani dzesimba.
4,Tanoona simba rekuzviparadzanisa nevamwe uye simba risiri rekuzviparadzanisa nevamwe
Chokutanga pane zvose, kusanzwisisana kunotsanangurwa: Vanhu vazhinji vanofunga kuti simba risina-kuzviparadzanisa harina kunaka sesimba rekuzviparadzanisa, nokuti magetsi ega ega anodhura, saka inofanira kudhura.
Sei zviri nani kushandisa simba rekuzviparadzanisa nevamwe pane kusazviparadzanisa mumaonero emunhu wese izvozvi?Muchokwadi, iyi pfungwa ndeyekugara mune iyo pfungwa makore mashoma apfuura.Nekuti iyo isiri-yega kugadzikana mumakore apfuura hakuna yekuzviparadzanisa nevamwe uye kugadzikana, asi nekuvandudzwa kweR & D tekinoroji, iyo yekusazvimiririra yakura zvakanyanya uye yave kugadzikana.Kutaura nezve chengetedzo, kutaura zvazviri, kwete-kuzviparadzanisa simba zvakare yakachengeteka zvakanyanya.Chero bedzi chimiro chakashandurwa zvishoma, chichiri chakachengeteka kumuviri wemunhu.Icho chikonzero chimwe chete, kwete-yekuzviparadzanisa simba inogona zvakare kupfuudza akawanda ekuchengetedza zviyero, senge: Ultuvsaace.
Muchokwadi, iyo inokonzeresa yekukuvadza kune isiri-yega yemagetsi magetsi inokonzerwa nekukwira kwevoltage kumativi ese emagetsi AC mutsetse.Zvinogona zvakare kutaurwa kuti mheni wave iri kuwedzera.Vheti iyi imhepo yakakwira nekukurumidza kumativi ese evoltage AC mutsetse, dzimwe nguva yakakwira kusvika zviuru zvitatu mavolts.Asi nguva ipfupi zvikuru uye simba racho rakasimba zvikuru.Zvichaitika kana kutinhira, kana pamutsara wakafanana we AC, kana mutoro wakakura wakabviswa, nokuti inertia yemazuva ano ichaitikawo.Iyo yekuzviparadzanisa BUCK yedunhu inokurumidza kuendesa kune yakabuda, kukuvadza inogara iripo yekuona mhete, kana kuwedzera kukuvadza chip, zvichiita kuti 300V ipfuure, uye kupisa mwenje wese.Kune yekuzviparadzanisa inopikisa-aggressive magetsi, iyo MOS ichakuvadzwa.Chiitiko ndechekuchengetedza, chip, uye MOS machubhu anopiswa kunze.Iye zvino iyo LED-inotyairwa simba rekupa yakashata panguva yekushandiswa, uye inopfuura 80% izvi zviviri zvakafanana zviitiko.Uyezve, iyo diki yekuchinja magetsi, kunyangwe iri dhizaini yemagetsi, inowanzo kuvadzwa neichi chiitiko, icho chinokonzerwa ne wave voltage, uye mumagetsi e LED, inotonyanya kuwanda.Izvi zvinodaro nekuti iyo mitoro hunhu hwe LED inonyanya kutya mafungu.The voltage.
Maererano nedzidziso yakawanda, zvishoma zvikamu mumagetsi emagetsi, yakakwirira kuvimbika, uye yakaderera chikamu chepamusoro chebhodhi rekuvimbika.Muchokwadi, maseketi asiri ekuzviparadzanisa ari mashoma pane maseketi ekuzviparadzanisa nevamwe.Sei kuvimbika kwekuzviparadzanisa nevamwe kwakakwirira?Muchokwadi, haisi kuvimbika, asi iyo isiri-yega yedunhu inonetseka zvakanyanya nekuvhiya, yakashata inhibitory kugona, uye yekuzviparadzanisa nedunhu, nekuti simba rinopinda mutransformer kutanga, uye rinozoendesa kune iyo LED mutoro kubva kune transformer.Iyo buck yedunhu chikamu cheiyo yekuisa magetsi ekupa zvakananga kune iyo LED mutoro.Nokudaro, iyo yekare ine mukana wakasimba wekukuvadza kune kuwedzera kwekudzvinyirira uye kuderedza, saka idiki.Muchokwadi, dambudziko rekusazviparadzanisa rinonyanya kukonzerwa nedambudziko rekuvhiya.Parizvino, dambudziko iri nderekuti chete marambi e LED anogona kuoneka kubva pamukana wekuti anogona kuonekwa kubva pane zvingangoita.Naizvozvo, vanhu vazhinji havana kuronga nzira yakanaka yekudzivirira.Vanhu vazhinji havazive kuti wave voltage chii, vanhu vazhinji.Iwo marambi e LED akaputsika, uye chikonzero hachigone kuwanikwa.Pakupedzisira, pane mutsara mumwe chete.Izvo magetsi aya haana kugadzikana uye achagadziriswa.Ndekupi chaiko kusagadzikana, iye haazive.
Non-isolation power supply inoshanda, uye chechipiri ndechekuti mutengo unonyanya kubatsira.
Simba risina-kuzviparadzanisa rakakodzera zviitiko: Chekutanga, ndiwo marambi emukati.Iyi nharaunda yemagetsi yemukati iri nani uye simba remasaisai idiki.Chechipiri, chiitiko chekushandiswa idiki -voltage uye diki ikozvino.Non-isolation haina maturo kune yakaderera-voltage currents, nokuti kushanda kwe-low-voltage uye mafungu makuru haasi akakwirira kudarika kuparadzaniswa, uye mari yacho ishoma kudarika yakawanda.Chechitatu, iyo isiri-yega yemagetsi magetsi inoshandiswa munzvimbo yakagadzikana.Ehe, kana paine nzira yekugadzirisa dambudziko rekudzvanya kuvhiya, iyo yekushandiswa kwemhando yesimba risiri rekuzviparadzanisa ichawedzera zvakanyanya!
Nekuda kwedambudziko remafungu, chiyero chekukuvadza hachifanirwe kuderedzwa.Kazhinji, rudzi rwekudzoka kwakagadziriswa, inishuwarenzi inokuvadza, chip, uye yekutanga yaMOS inofanira kufunga nezvedambudziko remafungu.Kuti uderedze huwandu hwekukuvadzwa, zvinodikanwa kufunga nezvekuvhiya zvinhu paunenge uchigadzira, kana kurega vashandisi kana uchinge washandiswa, uye edza kudzivirira kuvhiya.(Senge marambi emukati, dzima kwenguva iripo paunorwa)
Muchidimbu, kushandiswa kwekuzviparadzanisa uye kusazviparadzanisa kunowanzokonzerwa nechinetso chekuputika kwemafungu, uye dambudziko remafungu uye nzvimbo yemagetsi yakanyatsobatana.Naizvozvo, nguva zhinji kushandiswa kwesimba rekuzviparadzanisa nevamwe uye kusiri-yega magetsi haagone kutemwa imwe neimwe.Mitengo inobatsira zvikuru, saka zvakakosha kuti usarudze kusazviparadzanisa kana kuparadzaniswa se LED -drive power supply.
5. Pfupiso
Ichi chinyorwa chinosuma mutsauko pakati pekuzviparadzanisa uye kusazviparadzanisa simba, pamwe nekwavo kwakanakira nekuipira, nguva dzekuchinja, uye kusarudzwa kwekusarudzwa kwesimba rekuzviparadzanisa nevamwe.Ndinovimba kuti mainjiniya anogona kushandisa izvi sereferensi mukugadzirwa kwechigadzirwa.Uye mushure mokunge chigadzirwa chacho chakundikana, kurumidza kuisa dambudziko.
Nguva yekutumira: Jul-08-2023