Kev txhim kho thiab kev faib tawm ntawm Kev Hloov Hluav Taws Xob

Kev loj hlob ntawm kev hloov pauv tswj fais fab mov Muaj peb theem tseem ceeb ntawm kev hloov cov khoom siv hluav taws xob: thawj theem yog kev txhim kho cov khoom siv hluav taws xob semiconductor los ntawm cov khoom siv bipolar (BPT, SCR, GT0) rau MOS li (lub zog MOS- FET, IGBT, IGCT, thiab lwm yam), ua rau nws muaj peev xwm ua tau rau lub zog hluav taws xob hluav taws xob kom ua tiav qhov siab zaus, thiab txo qhov kev poob qis, thiab lub voj voog yooj yim dua. Qhov thib ob theem pib nyob rau hauv 1980s, kev tshawb fawb thiab kev loj hlob ntawm high zaus thiab soft switching technology ua rau cov kev ua tau zoo ntawm lub hwj chim converter ruaj khov.

Txoj kev loj hlob ntawm switching fais fab mov

Peb theem kev txhim kho tseem ceeb ntawm kev hloov hluav taws xob tswj hluav taws xob:

Thawj theem yog kev txhim kho cov khoom siv hluav taws xob semiconductor los ntawm cov khoom siv hluav taws xob bipolar (BpT, SCR, GT0) rau MOS li (lub zog MOS-FET, IGBT, IGCT, thiab lwm yam), ua rau nws muaj peev xwm ua tau rau lub tshuab hluav taws xob hluav taws xob. ua tiav siab zaus thiab loj Cov conduction poob yog txo qis, thiab lub Circuit Court yog yooj yim dua.

Qhov thib ob theem pib nyob rau hauv 1980s, kev tshawb fawb thiab kev loj hlob ntawm high zaus thiab soft switching technology, ua rau lub zog ua tau zoo dua, sib dua thiab me me. High zaus thiab mos hloov tshuab yog ib qho ntawm cov kev tshawb fawb hotspots nyob rau hauv lub thoob ntiaj teb lub hwj chim electronics teb nyob rau hauv lub dhau los 20 xyoo.

Qhov thib peb theem pib nyob rau hauv nruab nrab-1990s, thaum lub zog hluav taws xob hluav taws xob thiab kev sib txuas hluav taws xob hluav taws xob hluav taws xob module (IpEM) thev naus laus zis tau pib tsim, uas yog ib qho ntawm cov teeb meem tshiab uas yuav tsum tau daws sai sai hauv thoob ntiaj teb lub zog hluav taws xob hluav taws xob. .

Classification ntawm switching fais fab mov

1. Raws li kev tsav tsheb ntawm qhov hloov pauv hloov raj: nws tus kheej zoo siab thiab lwm yam zoo siab. Taw qhia lub teeb liab synchronous ntawm tus kheej zoo siab hauv paus tuaj yeem ua ib qho synchronous switching regulator circuit.

2. Raws li txoj kev tswj ntawm qhov hluav taws xob stabilization, nws tuaj yeem muab faib ua: pulse width modulation type and pulse zaus modulation type, los yog kev sib xyaw ntawm ob los ua ib hom kev sib xyaw ua ke.

3. Raws li cov qauv qauv ntawm lub hwj chim hloov hluav taws xob Circuit Court: step-down type, step-up type, reverse type and transformer type.

Qhov zoo thiab qhov tsis zoo ntawm kev hloov fais fab mov

Qhov zoo: kev siv hluav taws xob tsawg thiab kev ua haujlwm siab.

Disadvantages: Muaj kev cuam tshuam kev hloov pauv loj dua.

Highlights ntawm switching zog mov technology

1. Kev ua tau zoo ntawm cov khoom siv hluav taws xob semiconductor

2. Lub zog ceev

3. High zaus sib nqus cov khoom

4. Mos hloov tshuab

5. Synchronous rectification technology

6. Fais fab Factor Kho (pFC) Converter

7. Tag nrho cov digital tswj