Mune chero chinjana chinogadzira magetsi dhizaini, iro dhizaini dhizaini yeiyo Pcb bhodhi ndiyo yekupedzisira link. Kana iyo nzira yekugadzira isina kufanira, iyo PCB inogona kupenya yakawandisa kukanganiswa kwemagetsi uye kuita kuti magetsi ashande asina kugadzikana. Zvinotevera ndizvo zvinhu zvinoda kutariswa padanho rega rega rekuongorora:

1. Kubva pachirongwa kuenda kuPCB design process yekumisikidza component parameters-“input principle netlist-“design parameter settings-“manual layout-” manual wiring-“verification design-” review-“CAM output.

Vaviri, parameter kugadzika Chinhambwe chiri pakati pewaya dziri pedyo chinofanirwa kukwanisa kuzadzisa zvinodiwa zvekuchengetedza magetsi, uye kuitira kufambisa kushanda nekugadzira, chinhambwe chinofanira kunge chakafara sezvinobvira. Iyo yakaderera spacing inofanirwa kunge yakakodzera kune iyo voltage inoshivirira. Kana wiring density yakadzikira, nzvimbo yemitsara yemasaini inogona kuwedzerwa zvakakodzera. Kune mitsetse yezviratidzo ine mukaha mukuru pakati pemazinga akakwirira uye akaderera, nzvimbo inofanira kuva pfupi sezvinobvira uye nzvimbo inofanira kuwedzerwa. Kazhinji, Isa nzvimbo yekutevera kusvika ku8mil. Nharaunda pakati pemucheto wegomba remukati wepadhi uye kumucheto kwebhodhi rakadhindwa rinofanira kuva rakakura kudarika 1mm, iyo inogona kudzivisa kukanganisa kwepadhi panguva yekugadzirisa. Kana mitsara yakabatana nemapadhi yakaonda, kuwirirana pakati pemapadhi uye maitiro kunofanira kugadzirwa kuva chimiro chekudonha. Kubatsira kweizvi ndekwekuti mapedhi haasi nyore kusvuura, asi maronda uye mapedhi haasi nyore kubviswa.

Chechitatu, iyo chikamu marongerwo maitiro yakaratidza kuti kunyange kana redunhu schematic dhizaini yakarurama, yakadhindwa redunhu bhodhi haina kugadzirwa zvakanaka, ichava nemigumisiro yakaipa pakuvimbika kwemidziyo yemagetsi. Semuenzaniso, kana mitsara miviri yakatetepa yakaenzana yebhodhi yakadhindwa iri pedyo, chiratidzo chewaveform chinononoka uye ruzha runoratidzwa ruchaumbwa pamugumo wetambo yekutapurirana. Kuita kunodonha, saka kana uchigadzira yakadhindwa redunhu bhodhi, iwe unofanirwa kuterera kutora nzira chaiyo.

Imwe neimwe inoshandura magetsi ine zvishwe zvina zvazvino.

(1) simba chinja AC redunhu

(2) goho rectifier AC wedunhu

(3) yekupinza chiratidzo sosi yazvino loop

4 Iyo sefa capacitor inonyanya kuita senge Broadband simba rekuchengetedza; zvakafanana, iyo inobuda sefa capacitor inoshandiswawo kuchengetedza yakakwira-frequency simba kubva kune inoburitsa rectifier. Panguva imwecheteyo, iyo DC simba rekubuda mutoro wedunhu rinobviswa. Naizvozvo, materminal eiyo yekupinza uye yekubuda mafirita capacitors akakosha zvakanyanya. Iko kupinza uye kuburitsa ikozvino maseketi kunofanirwa kungobatanidzwa kune magetsi kubva kune materminals efirita capacitor zvichiteerana; kana kuwirirana pakati pekuisa / kubuda kwedunhu uye simba rekushandura / rectifier rectifier haigoni kubatanidzwa kune capacitor The terminal yakabatana zvakananga, uye simba re AC richabudiswa mukati mezvakatipoteredza nekuisa kana kubuda firita capacitor. Iyo AC yedunhu remagetsi switch uye AC dunhu reiyo rectifier ine yakakwirira-amplitude trapezoidal currents. Izvo zvikamu zveharmonic zveaya mafungu zvakakwirira kwazvo. Iyo frequency yakakura kupfuura iyo yakakosha frequency ye switch. Iyo peak amplitude inogona kunge yakakwira se5 times amplitude yekuenderera mberi yekupinda / kubuda DC ikozvino. Nguva yekushandura inowanzoita 50ns. Zvishwe zviviri izvi ndizvo zvinonyanya kukanganiswa nemagetsi, saka zvishwe zveAC izvi zvinofanirwa kuiswa pamberi pemamwe mitsara yakadhindwa mumagetsi. Izvo zvitatu zvakakosha zveloop yega yega mafirita capacitors, magetsi switch kana rectifiers, inductors kana transformers. Ivaise pedyo nemumwe uye gadzirisa nzvimbo yezvikamu kuita nzira yemazuva ano pakati pavo ipfupi sezvinobvira. Nzira yakanakisa yekumisikidza switching power supply marongero yakafanana neyakagadzirwa nemagetsi. Iyo yakanakisa dhizaini maitiro ndeaya anotevera:

• Isai transformer

• Dhizaini simba chinja ikozvino loop

• Dhizaini goho rectifier ikozvino loop

• Kudzora dunhu rakabatana ne AC simba redunhu

• Dhizaini yekupinda ikozvino sosi loop uye yekupinza dhizaini Dhizaini inoburitsa loop uye inobuda sefa zvinoenderana neiyo inoshanda unit yedunhu.