High-frequency switching power supply ndi chipangizo chomwe chimatembenuka, imayendetsa ndikuwongolera mphamvu zamagetsi, ndipo amagwiritsidwa ntchito kwambiri pazida zosiyanasiyana zamagetsi ndi zamagetsi. Kuchita kwake pafupipafupi kumapereka zabwino zambiri m'malo ambiri, kuphatikizapo kupulumutsa mphamvu, miniaturization, ntchito zapamwamba ndi kudalirika. Lero, tikambirana mozama njira ndi mfundo yosinthira magetsi pafupipafupi kuti tikwaniritse magwiridwe antchito apamwamba kwambiri, komanso kufunika kwake pochita.
Zofunika
Mfundo yayikulu yogwiritsira ntchito magetsi othamanga kwambiri ndikugwiritsa ntchito zinthu monga ma inductors, capacitors, ndi ma thiransifoma kuti azitha kusintha ma frequency apamwamba pamagetsi olowera, ndipo potsiriza kutulutsa mphamvu yokhazikika. Mwa iwo, udindo wa zigawo monga inductors, capacitors ndi thiransifoma makamaka kusunga ndi kusamutsa mphamvu, ndi kuzindikira kutembenuka kwa magetsi ndi apano kudzera muzosintha mwachangu. Mafupipafupi amagetsi osinthira pafupipafupi amakhala pakati pa makumi a kilohertz ndi mazana a kilohertz., zomwe ndizokwera kwambiri kuposa kuchuluka kwamagetsi amagetsi amagetsi.

Kuphatikizika kwa magetsi osinthira pafupipafupi

Magetsi osinthira pafupipafupi amapangidwa makamaka ndi mlatho wowongolera, inverter, fyuluta ndi zina zotero. Ntchito ya mlatho wokonzanso ndikusinthira mphamvu ya AC kukhala DC, inverter imasintha DC kukhala AC, ndi fyuluta zimasefa AC linanena bungwe inverter kupeza khola ndi otsika ripple DC voteji.

Kupanga ndi kupanga magetsi osinthira pafupipafupi

Mfundo yopangira magetsi osinthika kwambiri ndikuwonetsetsa kukhazikika kwake, bwino ndi kudalirika pansi pa ntchito yapamwamba-pafupipafupi. Posankha zigawo, perekani chidwi kwambiri pakuchita kwawo pafupipafupi kwambiri, monga ESR (ofanana mndandanda kukana) ndi ESL (ofanana mndandanda inductance) ma inductors ndi capacitors, komanso kutayikira inductance ndi kugawa capacitance wa thiransifoma. Nthawi yomweyo, mu kamangidwe ka dera, Kugwirizana kwa resonance ndi ma electromagnetic kuyenera kuganiziridwa mokwanira kuti tipewe kuwonongeka kwa magwiridwe antchito kapena kuwonongeka chifukwa cha kugwedezeka kwamagetsi komanso kusokoneza kwamagetsi..

Kudzera mu zoyeserera zingapo, magetsi osinthira pafupipafupi awonetsa magwiridwe antchito abwino komanso magwiridwe antchito osiyanasiyana ogwiritsira ntchito. Zotsatira zoyesera zikuwonetsa kuti magetsi osinthira pafupipafupi amatha kukwaniritsa kukula kochepa, kulemera kopepuka komanso kudalirika kwakukulu kwinaku mukusunga bwino kwambiri, zomwe zili zoyenera kwambiri pamagetsi amakono amagetsi ndi magalimoto amagetsi ndi madera ena. Kuphatikiza apo, zotsatira zoyesera zimasonyezanso kuti mwa kuwongolera mapangidwe ndi kupanga, mafupipafupi a magetsi osinthika kwambiri amatha kuwonjezereka, potero kuchepetsa kukula ndi kulemera ndi kuwongolera bwino.

Chinsinsi chamagetsi osinthira pafupipafupi kuti mukwaniritse magwiridwe antchito apamwamba kwambiri chagona pamikhalidwe yake yapadera yogwirira ntchito komanso kapangidwe kake.. Kupyolera mu kugwiritsa ntchito moyenera zigawozo monga inductors, capacitors, ndi thiransifoma, komanso kusankhidwa kwa zigawo zoyenera zogwirira ntchito zapamwamba komanso maulendo owongolera, magetsi osinthira pafupipafupi amatha kugwira ntchito mokhazikika pama frequency apamwamba kuti akwaniritse kusintha kwamphamvu ndikuwongolera. Mawonekedwe apamwamba kwambiri amagetsi osinthira pafupipafupi amachititsa kuti ikhale ndi zabwino zambiri monga kukula kochepa., kulemera kopepuka, mkulu dzuwa ndi mkulu kudalirika, ndipo mtengo wake wogwiritsidwa ntchito muzinthu zosiyanasiyana zamagetsi ndi machitidwe amagetsi wakhala akudziwika kwambiri. Ndi chitukuko chosalekeza chaukadaulo wamagetsi amagetsi, magetsi osinthira pafupipafupi amakhala ndi chiyembekezo chokulirapo komanso chiyembekezo chogwiritsa ntchito mtsogolo.