Masevhisi ePCB eKugadzira neKuedza

Kugadzirwa kwemabhodhi ecircuit akadhindwa ibasa rinoenderera mberi uye rinoenderera mberi. Sezvo tekinoroji ichifambira mberi, zvinodiwa paPCB zvinokurawo. Mabhodhi aya akaomarara ndiwo ari pakati pemidziyo yemagetsi , kubva kumidziyo yemazuva ese kusvika kumasevha anoshanda zvakanyanya. Chinhu chikuru pakushanda kwawo isimba rePCB, chinhu chakakosha chinosanganisira unit yemagetsi, tambo yemagetsi, uye chinongedzo chemagetsi. Kunyange zvazvo tambo yemagetsi nechinongedzo zvichiendesa alternating current (AC) kune simba, simba racho pacharo rinoshandura uye rinopa direct current (DC) kuPCB. Gwaro iri richaongorora kuoma kwesimba rePCB, richijekesa kukosha kwaro uye mashandiro aro.

Peji rino nderekutsvaga rutsigiro rwekugadzira zvinhu maererano nemaPCB emagetsi. Kuti uwane ruzivo rwehunyanzvi, verenga ruzivo rwebhodhi remagetsi ; kana BOM sourcing, SMT, THT, inspection, uye testing zvichifanira kutaurwa pamwe chete, shandisa Highleap's PCB assembly service.

A PCB's power supply unit ndiro gedhi rinoibatanidza kune kunze kwesimba sosi. Inoshandisa chinangwa cheviri: kudzora ikozvino uye voltage inopinda muPCB uye kushandura simba rinouya kuita fomu rinoshandiswa. Simba rinogona kunge riri muchimiro chakananga ikozvino (DC) kana alternating ikozvino (AC), imwe neimwe iine akasiyana maficha uye mashandisirwo. AC-powered PCBs anowana kushandiswa mumidziyo ine simba shoma semidziyo yemumba nemagetsi emuhofisi. Kusiyana neizvi, zvemagetsi zveDC-powered zvinobudirira munzvimbo dzine simba repamusoro, senge midziyo yemauto, masisitimu emotokari, uye maindasitiri ekushandisa.

Zvikamu zvePCB Power Supplies

Kusiyana-siyana kwemashandisirwo emagetsi kunoda akasiyana emhando dzePCB magetsi ekupa, imwe neimwe yakarongedzwa kune chaiyo zvinodiwa. Yakakamurwa zvakanyanya, PCB magetsi emagetsi anowira mumapoka maviri:

Linear Power Supplies

Linear magetsi ekushandisa anoshanda pamusimboti wekushandura AC kuita DC uchishandisa transformer. Ivo vanozivikanwa nekureruka kwavo uye kushanda nesimba, zvichiita kuti ive yakakodzera kune maapplication uko saizi uye uremu zvipingaidzo zvisingakoshese. Nekudaro, saizi yavo yakakura uye inogona kupisa kupisa inogona kudzikisira kushandiswa kwavo mu compact, huremu-huremu michina. Maindasitiri masisitimu, ane nzvimbo yakakwana uye yakatarisana nekuvimbika, akakodzera kukwikwidza kune mutsara magetsi emagetsi.

Switched-Mode Power Supplies

Akachinja-modhi magetsi ekushandisa anoshandisa transistors kushandura AC kuita DC. Uyezve, kusiyana nemagetsi emagetsi, switched-mode magetsi anoreruka uye madiki. Saka ivo vakakodzera zvikumbiro zvakaita senharembozha nemakomputa, uko ukuru uye huremu hunofanirwa kutariswa.

Dziviriro Mechanism muPCB Power Supplies

Simba rakasimba rePCB rekupa magetsi rinofanirwa kukwikwidzana nekuchinja kwezvino uye voltage, izvo zvinogona kuratidza semasurges uye spikes. Kunzwisisa uye kugadzirisa nyaya idzi kwakakosha kuchengetedza magetsi uye zvikamu zvePCB zvedunhu. Ngationgororei nzira dzekudzivirira dziripo:

Spike uye Kuwedzera Kudzivirirwa

Kamwe kamwe uye kupinza kwemagetsi kusimuka, kunozivikanwa semaspikes, uye kuwedzera kwemagetsi kuwedzera, kunonzi masurges, kunopa kutyisidzira kukuru kune magetsi uye zvikamu zvedunhu. Midziyo inokanganisa, kudzimwa kwemagetsi, uye kurova kwemheni zvinogona kukonzeresa zviitiko izvi. Spike uye surge vadziviriri vanoita basa rakakosha mukudzivirira magetsi uye dunhu rese kubva mukukuvadzwa.

Power Supply Circuit Protection

Voltage regulators akakosha kune magetsi, achishanda sevanochengeta pakurwisa masurges uye spikes. Aya maregulator anodzora zvine hungwaru iyo inouya yazvino uye voltage kubva kune magetsi kuenda kune yakadhindwa redunhu bhodhi, kuve nechokwadi yakachengeteka uye yakagadzikana voltage uye ikozvino nhanho. Kuenderera mberi nekuchengetedza dunhu, mafirita anoshandiswa kubvisa kunze ruzha rwe AC kubva kune DC magetsi sosi.

Overcurrent uye Overvoltage Dziviriro

Kuti udzivise overvoltage uye overcurrent scenarios, fuse inosanganiswa mumagetsi ekupa. Iyo fuse inoshanda senge inofailsafe, ichibvisa dunhu kana voltage kana mazinga azvino anopfuura miganhu inogamuchirwa. Mapfupi maseketi, anokonzerwa neasingatarisirwe mapfupi mapfupi, anogona zvakare kukanganisa. Mumamiriro ezvinhu akadaro, vanopwanya vedunhu vanouya, vachikurumidza kubvisa dunhu kuchengetedza rakadhindwa redunhu bhodhi.

Electromagnetic Interference (EMI) uye Static Magetsi Dziviriro

EMI inogara ichityisidzira kune magetsi uye maseketi, izvo zvinogona kukonzera kukanganisa. Mafirita anonyorerwa kurwisa kukanganiswa kwemagetsi, kuchengetedza kutendeseka kwedunhu. Uyezve, yekubatanidza yepasi mumagetsi emagetsi machaji static charges kure nedunhu bhodhi, kudzivirira kukuvara kungangoitika kune ese dunhu uye magetsi.

Kuwedzeredza uye Kuwedzeredza Dziviriro

Zvigadzirwa zvemagetsi zvinogadzira kupisa panguva yekushanda, uye magetsi emagetsi haasiwo. Kupisa zvakanyanya kunogona kukanganisa kushanda uye kuvimbika. Kuti zvigadzirise izvi, magetsi emagetsi akashongedzerwa nemagetsi ekucheka anoona kupisa uye nekukasira kumisa dunhu. Pamusoro pezvo, magetsi-anomisa maseketi anodzivirira kuwandisa nekudzora kubuda kwemagetsi.

Reverse Polarity Kudzivirirwa

Kubatanidza dunhu remagetsi kuPCB munzira isiriyo kunogona kutungamira kune reverse polarity, zvinogona kukuvadza zvikamu zvedunhu. Kuti uderedze njodzi iyi, magetsi emagetsi ane diode, achibvumira kuyerera kwazvino kune imwe nzira chete. Iyi chengetedzo inovimbisa kuti zvikamu zvedunhu zvinoramba zvisina kukuvadzwa, kunyangwe mumamiriro ereverse polarity.

Hunhu hwePCB Power Supplies

PCB magetsi ekushandisa anogona kuratidzwa zvichienderana nechimiro chavo chemuviri kana kushanda. Aya mapoka anosanganisira huwandu hwemaapplication:

Pa-board uye Off-board Power Supply

• On-board Power Supplies: Aya magetsi emagetsi akabatanidzwa mukati mePCB, achipa compactness uye kugona. Ivo vakanyatsokodzera kune yakakwirira-simba maapplication.
• Off-board Power Supplies: Kunze kwePCB, off-board magetsi ekushandisa anoshandiswa mune yakaderera-simba maapplication, achipa kuchinjika uye nyore kutsiva.

Centralized kana Distributed Power Supply

• Centralized Power Supply: Mukugadzirisa uku, simba rimwechete rinodyisa zvishandiso zvese paPCB. Kureruka uku kunowanzofarirwa mune yakaderera-simba maapplication.
• Distributed Power Supply: Multiple magetsi masosi anogovera simba kune akasiyana midziyo paPCB. Iyi nzira yakakosha kune epamusoro-simba maapplication apo zvinodiwa simba zvinosiyana.

Isolated kana Non-imwechete Power Supply

• Isolated Power Supply: Magetsi ari ega ega anochengeta magetsi akaparadzana netambo yemagetsi eAC. Iwo akanyatsokodzera kune yakaderera-simba maapplication, achipa yakawedzera layer yechengetedzo.
• Siri-yakasarudzika Power Supply: Aya magetsi anobatana zvakananga kune AC tambo yemagetsi, zvichiita kuti ive yakakodzera kune akasiyana maapplication. Zvisinei, vanoda mamwe matanho ekuchengetedza.

Yakagadziriswa kana Isina Kudzoreredzwa Magetsi

• Regulated Power Supply: Anodzorwa magetsi masosi anoendesa yakadzikama voltage kuPCB, kuve nechokwadi kushanda kwakagadzikana. Ivo vanowanzo shandiswa mune yakaderera-simba maapplication.
• Kuwanikwa Kwemagetsi Kusina Kudzorwa: Magetsi asina kudzorwa anopa mavhiri anochinja-chinja, ayo anogona kugamuchirwa kune epamusoro-simba maapplication asi achida kumwe kusefa kuti kugadzikana.

Pakuronga kugadzirwa, zvinobatsirawo kuenzanisa nyaya iyi ne ENIG PCB finish usati wapedzisa kugadzira kana kugadzira pasuru.

PCB Layout Power Supply Guidelines

Grounding: A Solid Foundation

Kumisikidza ndege yepasi yakasimba yakatsaurirwa kuPCB dhizaini yemagetsi kwakakosha, kunyanya kana zvimhingamipinyi zvenzvimbo zvichibvumidza. Iyi ndege yepasi haingopi magetsi ekudzivirira chete asiwo inoderedza ruzha rwekubatanidza mhedzisiro. Nenzira yakanaka, iyi ndege yepasi yakatsaurirwa inofanira kuramba yakaparadzaniswa kubva kune yakajairwa pasi inoshumira mamwe edunhu. Kudyidzana pakati pezvikonzero zviviri izvi kunofanirwa kuganhurwa kune imwe poindi pabhodhi kudzivirira zvishwe zvepasi, izvo zvinogona kuwedzera nyaya dzine chekuita neruzha.

Trace Conductivity: Pfupi uye Yakakura

Inoshanda magetsi emagetsi ekutsvaga dhizaini inoisa pamberi kupfupika uye hupamhi kudzikamisa kurasikirwa kwekupokana uye kuderedza kuburitswa kwemagetsi emagetsi. Polygon inodurura, kana zvichibvira, inoratidza kubatsira, kunyanya mumutsara wemagetsi emagetsi masisitimu uko kupisa kwemhepo kunoita basa rakakosha. Iko kusanganisirwa kwakasimba kuzadza mukati mezvikamu, zvakabatana kuburikidza nevias zvesimba uye ndege dzepasi, inosimudzira kuita kwese. Nekudaro, kushandiswa kwevias kwekuchinja magetsi emagetsi maronda kunofanirwa kudzikiswa, sezvo vias inosuma yakawedzera impedance. Kushandisa akawanda vias kubatanidza mapolygoni kunopa mhinduro yepamusoro. Ukobvu hwemhangura zvidimbu zvinokanganisa zvakanyanya mashandiro, nematanho akakora anopa conductivity iri nani. Zvakadaro, kutarisisa mutengo kungada kutengeserana pakati pemutengo nekuita.

Component Placement: Proximity Matters

Strategic chikamu kuiswa kwakakosha mukuwana hurefu hupfupi hwekutevera. Zvikamu zvemagetsi zvinofanirwa kuiswa padhuze sezvinobvira, nekusimbisa pakuderedza kureba kwekutevera. Mune zvimwe zviitiko, kukwirisa zvikamu pamativi ese ebhodhi kungave kuri madikanwa kuti uwane kuswedera kwakaringana.

Trace Routing: Kuparadzana uye Maonero

Masignal trace anonzwa ruzha anofanirwa kuendeswa kure nemagetsi emagetsi pane isina kubatanidzwa bhodhi layer, yakanyatsoparadzaniswa nendege yepasi. Kuyambuka kwesimba uye chiratidzo chechiratidzo pa90-degree angle inoderedza ruzha rwekubatanidza mhedzisiro, kuderedza mukana wekukanganisa.

Thermal Management: Kubvisa Kupisa Zvinobudirira

Thermal manejimendi yakakosha muPCB magetsi ekugadzira dhizaini, sezvo ese magetsi emagetsi maseketi anogadzira kupisa. Kuiswa kwechikamu kunofanirwa kukoshesa kuparadzanisa zvinhu zvinogadzira kupisa kubva kune zvinonzwa kupisa uku uchichengetedza hurefu hupfupi hwekutevera. Kushandisa mhangura yebhodhi kune zvinodziya conductivity zvinobatsira mukugovera kupisa zvakafanana kure kubva kune hotspots. Muzviitiko zvinosanganisira switch-mode magetsi emagetsi, uko dunhu rekutonga rinogona kunge riine tembiricha-inonzwa zvinhu, kungwarira co-nzvimbo ine zvinopisa zvinogadzira zvinhu zvakakosha kudzivirira nyaya dzekupisa uye kusamira kwemagetsi emagetsi.

Kazhinji, dhizaini yePCB power supply inoda kutariswa kwakanyatsojeka kwezvinhu zvakasiyana-siyana, kungave kuri kubata nemagetsi e-linear kana switch-mode. Nekutevedzera gwara rakatsanangurwa uye kugadzirisa matambudziko akasiyana anokonzerwa nerudzi rumwe nerumwe, vagadziri vePCB vanogona kugadzirisa mashandiro emagetsi, kuderedza kupindira, uye kuona kuti masisitimu emagetsi anoshanda zvakanaka mumashandisirwo akasiyana-siyana.

Kusarudza Iyo Yakakodzera PCB Power Supply yeProjekti Yako

1. Zvido zvekushanda
Mhando yekushandisa inokanganisa zvakanyanya kusarudzwa kwePCB magetsi. Kune zvishandiso zvine simba-pasi, senge zvemagetsi zvevatengi, mutsara magetsi emagetsi anogona kazhinji kupa kuvimbika kwakakwana uye nyore. Kune rimwe divi, kune epamusoro-simba masisitimu kana maapplication ane zvipingamupinyi zvemuchadenga-semagetsi emotokari kana nharembozha - switch-modhi magetsi emagetsi isarudzo iri nani nekuda kwehunyanzvi hwavo hwepamusoro uye compact size.

2. Environmental Conditions
Funga nezvemamiriro ekushanda echigadzirwa chako paunosarudza magetsi. Kune hutsinye hwekunze kana hwemaindasitiri nharaunda, tungamira masimba emagetsi ane robust electromagnetic interference (EMI) dziviriro uye yepamberi yekupisa manejimendi kuti ishingirire mamiriro akanyanya. Kune zvemukati maapplication, zvinodhura-zvinogadzirisa zvigadziriso zvine yakagadzikana voltage regulation zvinowanzokwana kusangana nezvinodiwa zvekushanda pasina overengineering dhizaini.

3. Kuzvimba
Remangwana scalability chimwe chinhu chakakosha pakusarudza chaiyo PCB magetsi. Kune zvigadziriso zvinoda kukwidziridzwa kana kuwedzera, magetsi akagoverwa anopa modular maitiro, achigonesa kuchinjika uye kuchinjika. Izvi zvinobvumira kugadziridzwa kuri nyore kune sisitimu pasina kuda kugadziridzwa kwakazara.

4. Kuenderana
Ita shuwa kuti magetsi anosangana nezvinodiwa zveindasitiri zviyero uye zvitupa, senge RoHS (Kurambidzwa kwezvinhu zvine njodzi) kana ISO zviyero. Kuteerera hakungovimbisi kuchengeteka uye kuvimbika asiwo kunovimbisa kuti chigadzirwa chinogona kutengeswa mumisika ine hurongwa. Iyi nhanho inonyanya kukosha kumaindasitiri akaita semagetsi ekurapa, mota, uye nharembozha.

Nekunyatsoongorora zvinhu izvi, mainjiniya nevagadziri vanogona kusarudza PCB magetsi emagetsi anoenderana nezvose zvinodiwa zvehunyanzvi uye zvinangwa zvekushanda zvemapurojekiti avo.

mhedziso

Kazhinji, simba rePCB chinhu chakakosha kune chero sisitimu yemagetsi, ichiva nechokwadi chekuti zvishandiso zvinoshanda zvakavimbika uye zvinobudirira. Kubva pakusarudza rudzi rwesimba remagetsi rakakodzera kusvika pakushandisa nzira dzakanakisisa mukugadzira nekudzivirira, nhanho imwe neimwe inoita basa rakakosha mukugadzira zvigadzirwa zvemagetsi zvinoshanda zvakanyanya. Sezvo tekinoroji ichichinja uye zvinodiwa nevatengi zvichikura, kudiwa kwemhinduro dzesimba rePCB dzemhando yepamusoro uye dzemhando yepamusoro kunowedzera kukurumidza kupfuura kare.

KuHighleap Electronic, isu tine hunyanzvi hwekupa-imwe-stop PCB kugadzira uye masevhisi egungano, akarongedzerwa kusangana nezvinodiwa zvakasiyana zvemagetsi emazuva ano. Unyanzvi hwedu hunosvika pakugadzira tsika PCB magetsi ekupa mhinduro ine chaiyo dhizaini, yakasimba nzira dzekudzivirira, uye indasitiri inotungamira kuvimbika. Kunyangwe iwe uri kugadzira mhinduro dzenharembozha, masisitimu emotokari, kana zvemagetsi zvevatengi, timu yedu yakagadzirira kubatana newe kuti dhizaini yako irarame.

Bata Highleap Electronic nhasi kuti uongorore kuti kugona kwedu kugadzira zvinhu zvemhando yepamusoro uye masevhisi edu ekupedzisira angakubatsira sei kugadzira maPCB ane simba uye akavimbika anosiyanisa zvigadzirwa zvako mumusika uri kuramba uchikwikwidzana. Ngatisimbisei hunyanzvi hwenyu!

FAQ

1. Ndeupi musiyano uripo pakati pePCB yemagetsi uye chiyero chedunhu bhodhi?

A: PCB yemagetsi yakagadzirirwa zvakananga kutarisira nekuparadzira simba remagetsi mukati memudziyo wemagetsi, zvichiita kuti voltage nemagetsi zvive zvakagadzikana. Kune rumwe rutivi, maPCB akajairwa anoshanda sehwaro hwezvikamu zvemasekete akajairika uye anogona kunge asina mabasa emagetsi akadai sekutonga voltage kana EMI shielding.

2. Ndingavandudza sei kushanda kwesimba rangu rekupa PCB dhizaini?

A: Kuti unyatso shanda zvakanaka, tarisa pakuderedza kusimba kwezvimedu nekushandisa zvimedu zvemhangura zvakafara kana zvakakora, kuve nechokwadi chekuti kupisa kwakakodzera, uye kusarudza zvikamu zvemhando yepamusoro. Pamusoro pezvo, kushandisa mafirita eEMI nemagetsi anodzora magetsi kunogona kuvandudza mashandiro uye kugadzikana kwese.

3. Sei grounding yakakosha mumagetsi ePCB mabhodhi?

A: Kuisa pasi mumabhodhi ePCB kunobatsira kuderedza kupindirana kwemagetsi (EMI) uye kudzikamisa mazinga emagetsi. Nzvimbo yakatsaurirwa pasi inovandudza kupatsanurwa kweruzha uye inoita kuti zvikamu zvinonzwa zviri paPCB zviwane magetsi akachena, zvichiwedzera kuvimbika.

4. Ko simba rekupa PCBs rinobata sei kupisa kwekutonga mune compact magadzirirwo?

A: MaPCB emagetsi ari mumagadzirirwo akamanikana anotsigira matekiniki akadai se thermal vias, heat sinks, uye optimized trace layouts kuti abvise kupisa zvinobudirira. Zvinhu zvepamusoro zvine thermal conductivity iri nani zvinogonawo kubatsira kudzora kupisa mumashandisirwo ane simba rakawanda kana nzvimbo shoma.

5. Ndedzipi nyaya dzakajairika dzekutarisa mumabhodhi emagetsi emagetsi?

A: Matambudziko anowanzo sanganisira kupisa zvakanyanya, kukanganiswa kweEMI, kushanduka kwemagetsi, uye kudzika kusina kunaka. Matambudziko aya anogona kukonzera kudzikira kwekushanda, kutadza kushanda kwezvikamu, kana kupfupisa hupenyu hwechigadzirwa. Maitiro ekugadzira nemazvo uye kuyedzwa kwakakwana zvinogona kuderedza njodzi idzi.

6. Ndinosarudza sei simba rekushandisa PCB yekushandiswa kwangu?

A: Funga nezvezvinhu zvakaita sezvinodiwa nemagetsi (AC kana DC), mamiriro ekunze (mukati meimba kana kunze), kutevedzera mitemo yeindasitiri, uye kudiwa kwekukwanisa kuchinjika kana modularity. Mashandisirwo emagetsi ane simba guru anogona kuda magetsi ekuchinja-chinja, nepo michina ine simba shoma ichigona kushandisa magetsi emutsetse.