Cov hau kev los txhim kho cov kev ua tau zoo ntawm kev hloov hluav taws xob
Txiav tawm startup
Txog cov hluav taws xob flyback fais fab tuag yog powered los ntawm ib tug auxiliation winding tom qab pib pib yog li 300v. Piv txwv tias yog pib tus nqi tiv tau yog 47K ω, lub zog noj yog ze li ntawm 2W. Txhawm rau txhim kho cov kev ua tau zoo, cov chansactance yuav tsum tau txiav tawm tom qab pib. Sab saum toj, ICE2DS02G muaj lub siab pib pib hluav taws xob sab hauv uas tuaj yeem tua lub resistor tom qab pib. Yog tias tus maub los tsis muaj lub siab pib pib Circuit Court, muaj peev xwm txuas tau rau hauv cov series nrog pib pib tom qab pib yuav txo qis mus rau xoom. Qhov tsis zoo yog tias lub zog muab tsis tau rov pib tau, thiab cov Circuit Court tau tsuas yog rov ua dua tom qab txiav tawm cov tswv yim voltage thiab tawm ntawm lub Capacitor.
Txo cov moos zaus
Lub moos zaus tuaj yeem txo qis lossis txo qis. SUCLY SCENTS yog hais txog txoj kab txo qis hauv moos zaus ua tiav los ntawm ib qho qauv tshwj xeeb thaum cov lus taw qhia ntau tshaj ib qho kev pib.
Hloov hom ua haujlwm
Rau hloov lub zog siv hluav taws xob ua haujlwm hauv hom siab-zaus, hloov mus rau qhov qis-zaus hom thaum sawv daws tuaj yeem txo qis kev poob. For example, for quasi resonant switching power supplies (operating at frequencies of several hundred kHz to several MHz), they can switch to the low-frequency pulse width modulation control mode pWM (tens of kHz) during standby. Iris40xx nti txhim kho sawv ntsug kev ua haujlwm los ntawm kev hloov ntawm QR thiab PWM. Thaum lub teeb hluav taws xob hauv lub teeb thiab cov khoom sib txuas, cov kwv tij tshuab hluav taws xob voltage yog tsawg, thiab cov teeb liab uas tsis tuaj yeem kis tau rau FB lub davhlau ya nyob twg. FB voltage yog tsawg dua li qhov ntsuas hluav taws xob sab hauv lub nti, thiab hom Qasi Resonant tsis tuaj yeem ua tau. Lub Circuit Court tom qab ntawd ua haujlwm nyob rau hauv ib qho qis dua mem tes dav dav txoj kev tswj tswj hom. 2. PWM → PFM rau hloov lub zog siv hluav taws xob ua haujlwm hauv PFM hom, nrog lub sijhawm ruaj khov rau lub sijhawm thiab kho lub sijhawm. Qhov qis dua lub nra, ntev dua lub sijhawm tig tawm, thiab txo qis zaus zaus. Siv lub teeb liab standby rau nws PW / PIN. Nyob rau hauv cov nqi ntsuas kev ntsuas, tus lej PIN yog nyob rau theem siab, thiab cov Circuit Court ua haujlwm hauv PWM hom. Thaum lub nra nyob hauv qab ntawm qee qhov kev pib, tus pin no rub mus rau qib qis, thiab cov Circuit Court ua haujlwm hauv PFM hom. Los ntawm kev hloov ntawm PWM thiab PFM, lub hwj chim ua haujlwm thaum lub teeb thauj khoom thiab cov xeev standby tau txhim kho. Los ntawm kev txo lub moos zaus thiab hloov ua haujlwm ntau zaus, cov kev ua haujlwm standby ua tau zoo dua, cov maub los tuaj yeem hloov kho tsis tu ncua. Cov zis tuaj yeem hloov kho kom zoo thoob plaws tag nrho cov load ntau. Txawm tias thaum lub thauj khoom rov qab los ntawm xoom kom tag nrho cov kev thauj khoom, nws tuaj yeem teb sai, thiab hloov ua lwm yam. Cov zis hluav taws xob poob thiab overshoot yog ob qho tib si nyob hauv qhov tsis pub muaj.
