Nzira dzakasiyana dzekubatanidza waya dzinogona kukanganisa kugoverwa kwesimba rema "transformer windings", izvo zvinokanganisa zvakananga mashandiro ema "transformers". Muchinyorwa chino, tichatarisa pane parameter yema "transformers".
Capacitance yakagoverwa yetransformer i capacitance yeparasitic inoumbwa nekuda kwekuvapo kwemisiyano inogona kuitika. Iparamita yemagetsi iripo zvakanyanya, uko kune capacitance yakagoverwa pakati pema insulators maviri chero bedzi paine musiyano wevoltage. Capacitance yakagoverwa haina simba guru pamasekete ari pama frequency akaderera, asi mhedzisiro yayo inofanira kufungwa nezvayo pama frequency akakwira.
Kugovaniswa kwesimba re transformer windings kunogona kukamurwa kuita zvikamu zvina zvikuru:
(1) capacitance yekutenderera pakati pemagetsi. Capacitance inoumbwa nemusiyano uripo pakati pekutenderera kuri pedyo. Kunyangwe kukosha kwe capacitance pakati pekutenderera kamwe chete kuri kudiki, kuchaja nekuburitsa simba kakawanda pakati pekutenderera kunogona kukonzera kudzikira kwe insulation uye kutoputsika uye kupfupika kwe waya ine enamel mumamiriro ezvinhu ane voltage yakawanda kana simba rakawanda.
(2) Kukwanisa kuchinjika pakati pezvikamu zvakasiyana-siyana. Kukwanisa kuchinjika pakati pezvikamu zvakasiyana-siyana mumhepo imwe chete. Kukwanisa kuchinjika pakati pezvikamu ndiko kunobva simba rakapararira, iro rinoumba oscillation loop ine leakage inductance pamafrequencies akakwira, zvichiwedzera matambudziko ekupindirana kwemagetsi uye kuwedzera kushushikana kwemagetsi pa switching transistor.
3) Kugona kupindirana. Kugona kupindirana pakati pekutanga nekwechipiri, kwekutanga neVCC, uye kwechipiri neVCC. Iyi capacitor inopa nzira yekubatanidza yekupindirana kwemaitiro akajairika, izvo zvinogona kukonzera ruzha kubva kudivi rekutanga kuti rutumirwe kudivi rechipiri, zvichikanganisa kugadzikana kwezvinobuda.
(4) Kugona kutsakatika. Kugona kutenderera kwema magnetic cores, shielding layers, kana casings kunokonzerwa nezvinhu zvakaita se circuit, structure, kana layout. Kunyangwe ma capacitor aya ari madiki, anogona kukanganisa hunhu hwe high-frequency pasi pema layouts chaiwo.
Kugovaniswa kwesimba re transformer windings kunowanzo kukuvadza, uye kukanganisa kwayo pamatunhu ndekwekuti:
1. Matambudziko ekubatana kwemagetsi. Kugona kwakapararira kunoita kuti pave nenzira yekubatanidza pakati pemawinding ekutanga neechipiri, zvichikonzera ruzha kudivi rekutanga kuti rienderane nedivi rechipiri kuburikidza ne capacitance, zvichiita kuti pave nekupindirana kwe common mode uye kukanganisa kusimba kwesignali yedunhu.
2. Kuderera kwekushanda zvakanaka. Ma capacitor akapararira mumasekete anogona kugadzira ma capacitive currents, zvichikonzera kuwedzera kwesimba re reactive rema transformers uye kudzikira kwekushanda zvakanaka. Chechipiri, nzira yekuchaja nekuburitsa simba rakapararira inowedzera kurasikirwa kwakawedzerwa, kukwidibira kupisa kunowedzera, uye kushanda zvakanaka kunoderera.
3. Kukuvadzwa kwekudzivirira kupisa. Kupararira kwesimba remagetsi kunogona kukonzera kuwanda kwemagetsi munzvimbo dzine magetsi akawanda, zvichikonzera kuwanda kwesimba remagetsi rinobuda uye kukanganiswa kwezvinhu zvinodzivirira kupisa.
4. Kudzikira kwekushanda zvakanaka. Kugona kupararira kwemagetsi uye kubuda kwemagetsi zvinoumba resonant circuit, zvichikonzera kutenderera kwemagetsi mu switching power supply, zvichikonzera kushushikana kwakanyanya kwemagetsi pa switching transistor uye kukuvara kwemudziyo.
Mukushandiswa kwemafrequency akawanda, distributed capacitance inogona kushandura circuit model yakafanana yematransformer, zvichiita kuti frequency response isiyane nekugadzirwa kwayo uye ichikanganisa kugadzikana kwecircuit. Distributed capacitance inogonawo kutumira ruzha rweswitch kune output terminal kuburikidza nekubatanidza, kuwedzera power ripple uye kuderedza kunaka kwe output.
5. Kugadzika miganhu yekugadzira uye kuwedzera kwemitengo. Kuti kudzvinyirire simba remagetsi akagoverwa, zvingave zvakakosha kugadzira mamwe maRC buffer compensation circuits, izvo zvinowedzera kuomarara uye mutengo wekugadzira dunhu. Muzviitiko zvema frequency akakwira, kuderedza simba rakagoverwa, zvingave zvakakosha kushandisa zvinhu zvinodzivirira zvinodhura uye maitiro akaomarara kugadzira ma transformer, nokudaro zvichiwedzera mari.
Mumatransformer ane mafrequency akakwira, tinogona kuderedza simba rakapararira retransformer nekuwedzera daro riri pakati pemawindings, kuwedzera ukobvu hweinsulation, kushandisa zvinhu zvekudzivirira zvinogara zvichishandiswa ne dielectric yakaderera, kuvandudza nzira dzekumonera, uye kuwedzera dhizaini yekudzivirira.
Nguva yekutumira: Mbudzi-03-2025
