Intshayelelo yokutshintsha itekhnoloji yesekethe yeadaptha yamandla kumabonakude

1. Intshayelelo;

Ukutshintsha ukunikezelwa kwamandla kuneenzuzo ezicacileyo ezifana nokusetyenziswa kwamandla aphantsi, ukusebenza kakuhle kunye nomthamo omncinci.Isetyenziswe ngokubanzi kwiimveliso zombane kunye nezixhobo zombane.Ngokwendlela yokulawula amandla ombane wokuphuma kwisekethe, umbane wokutshintsha unokwahlulwa ube ziindidi ezintathu: ukumodareyitha kobubanzi be-pulse (PWM), i-pulse frequency modulation (PFM) kunye ne-pulse rate modulation (PWM).Ngokwendlela yokuqalisa, unikezelo lwamandla okutshintsha lunokwahlulwa lube ludidi oluzithandayo kunye nolunye uhlobo oluchulumancisayo, I-adapter yamandla yokutshintsha echazwe kweli nqaku kukumodareyitha kobubanzi be-pulse (PWM).Lunikezelo lombane lokutshintsha olonwabisayo, olukhupha amandla ombane alawulwayo we-12V DC adla ngokusetyenziswa kwiimveliso zombane kunye nezixhobo zombane, kunye nesiphumo sangoku yi-6A.Ilungele unikezelo lwamandla ombane we-DC we-LCD TV phakathi kwe-intshi ezingama-32.

2, Inkcazo yobugcisa bokuqhuba isiphaluka sokutshintsha i-adapter yamandla;

I-drive chip ob2269 esetyenziswe ekutshintsheni umbane ochazwe kweli nqaku ithatha iskimu soyilo olulodwa, oko kukuthi inkqubo yonikezelo lwamandla ineendleko eziphezulu zokusebenza kwaye inokuhlangabezana neemfuno zobuninzi.

I-Ob2269 yamkela uyilo lwemowudi yemveli kwaye inezi mpawu zilandelayo;

▲ Ukusetyenziswa kwamandla okulinda okuphantsi: uyilo lwemowudi yokusebenza yamandla aphantsi ayinako ukwenza yonke inkqubo ibe lula ukuqonda iingcebiso zamva nje ze-International Energy Agency phantsi komthwalo.

▲ ukusebenza kwamahhala: ingxolo yomsindo ayiyi kubonakala phantsi komthwalo okhanyayo kunye nomthwalo opheleleyo.Uyilo lwenkqubo oluphuculweyo lunokwenza inkqubo isebenze ngokuzolileyo nakwesiphi na isimo esisebenzayo.

▲ isiqalo esisezantsi sangoku: I-VIN / VDD iqala ngoku iphantsi njenge-4ua, enokunciphisa ngokufanelekileyo ukulahleka kwenkqubo yokuqalisa isiphaluka kunye nokunciphisa ixesha lokuqala kwenkqubo.

▲ ukusebenza okuphantsi: ukusebenza kwangoku malunga ne-2.3ma, enokunciphisa ngokufanelekileyo ukulahleka kwenkqubo kunye nokuphucula ukusebenza kakuhle kwenkqubo.

▲ eyakhelwe kwimbuyekezo ye-OCP: umsebenzi wembuyekezo ye-OCP eyakhelwe-ngaphakathi wenza i-OCP ijika yenkqubo ithande ukuba flat kuluhlu lwamandla ombane wonke ngaphandle kokunyuswa kweendleko, ukuze kuphuculwe ukusebenza kweendleko zenkqubo.

▲ umsebenzi wokukhusela isandi: unomsebenzi wokukhusela i-overvoltage (OVP), umsebenzi wokukhusela ubushushu (OTP), umsebenzi wokukhusela i-undervoltage (UVLO) kunye nomsebenzi wokukhusela i-overload (OLP), edibene nomsebenzi wokukhusela isandi.

▲ I-MOSFET i-soft drive: inokuphucula ngokufanelekileyo i-EMI yenkqubo.

Iimpawu ze-2269 zenkqubo eyakhelwe-ngaphakathi: inokunciphisa ngempumelelo i-EMI kunye nokunciphisa i-EMI.

3, Umzobo weskimu sombane wokutshintsha iadaptha yamandla;