Matanho Akakosha paMOSFET Sarudzo

Mazuva ano, nekukurumidza kukura kwesainzi uye tekinoroji, semiconductors anoshandiswa mune akawanda uye akawanda maindasitiri, umoMOSFET inoonekwawo seyakajairwa semiconductor mudziyo, nhanho inotevera ndeyekunzwisisa kuti ndeupi musiyano uripo pakati pehunhu hwebipolar simba crystal transistor uye inobuda simba MOSFET.

1, nzira yebasa

MOSFET ibasa rinodiwa kusimudzira magetsi ekushanda, madhiyamu edunhu anotsanangura zviri nyore, kusimudzira simba rediki; simba crystal transistor isimba rinoyerera kusimudzira dhizaini dhizaini yakanyanya kuoma, kusimudzira kutsanangurwa kwesarudzo yakaoma kusimudzira iyo yakatarwa inozokanganisa simba rekupa yakazara switching kumhanya.

2, iyo yakazara switching kumhanya kweiyo magetsi

MOSFET yakakanganiswa netembiricha idiki, iyo magetsi inoshandura inobuda simba inogona kuona kuti inopfuura 150KHz; simba rekristaro transistor ine mashoma mashoma emahara ekuchengetedza evhavha nguva inogumira simba rekupa switching kasi, asi simba rayo rekubuda kazhinji haripfuuri 50KHz.

3, Nzvimbo yekushanda yakachengeteka

Simba MOSFET haina hwaro hwechipiri, uye nzvimbo yekushanda yakachengeteka yakakura; simba rekristaro transistor ine yechipiri base base mamiriro, iyo inomisa yakachengeteka yekushanda nzvimbo.

4, Yemagetsi conductor kushanda kunodiwa kushanda voltage

SimbaMOSFET ndeyemhando yepamusoro-voltage, iyo conduction inoshanda inodiwa kushanda voltage yakakwira, kune yakanaka tembiricha coefficient; simba rekristaro transistor zvisinei kuti imarii inopesana nekushanda kunodiwa kushanda voltage, yemagetsi conductor inoshanda inodiwa kushanda voltage yakaderera, uye ine yakashata tembiricha coefficient.

5, iyo yakanyanya simba inoyerera

Simba MOSFET mune inoshandura magetsi emagetsi emagetsi emagetsi emagetsi emagetsi emagetsi emagetsi emagetsi ekugadzirisa magetsi, mukushanda uye kushanda kwakagadzikana pakati, simba guru rinoyerera rakaderera; uye simba crystal transistor mukushanda uye yakagadzikana basa pakati, iyo yakawanda simba inoyerera yakakwirira.

6, Mutengo wechigadzirwa

Mutengo wesimba MOSFET wakakwira zvishoma; mari yemagetsi crystal triode yakaderera zvishoma.

7, Kupinza mhedzisiro

Simba MOSFET haina mhedzisiro yekupinza; simba crystal transistor ine penetration effect.

8, Kuchinja kurasikirwa

MOSFET kuchinja kurasikirwa hakuna kunaka; simba crystal transistor kuchinja kurasikirwa kwakakura.

Pamusoro pezvo, ruzhinji rwesimba reMOSFET rakabatanidzwa rinokwesha rinotora diode, nepo bipolar simba rekristaro transistor rinenge risina kusanganisa kuvhunduka kunotora diode.MOSFET kuvhunduka kunotora diode inogona zvakare kuve yemagineti yepasirese yekuchinja magetsi ekupa maseketi magineti coils kuti ipe simba factor angle. yemagetsi ekuyerera kuchengetedza chiteshi. Munda wekuita chubhu mune yekukatyamadza inobata diode mukuita kwese kudzima neiyo general diode sehupo hwekudzoreredza kudzoreredza ikozvino kuyerera, panguva ino diode kune rumwe rutivi kutora dhiraivha - sosi danda rakanaka pakati pezvakakura. kusimuka kwezvinodiwa zvebasa remagetsi ekushanda, kune rumwe rutivi, uye reverse recovery current flow.