Yuav ua li cas xaiv tus tsav tsheb tsim nyog tshaj plaws rau MOSFET?

Hauv kev hloov hluav taws xob thiab lwm qhov kev tsim hluav taws xob tsim hluav taws xob, cov neeg tsim qauv yuav tau them nyiaj ntau dua rau ntau qhov tseem ceeb ntawm cov khoom siv hluav taws xob.MOSFET, xws li on-off resistor, loj dua kev khiav hauj lwm voltage, loj zog khiav. Txawm hais tias lub ntsiab lus no yogtseem ceeb, noj mus rau hauv tus account qhov tsis tsim nyog qhov chaw yuav ua rau lub hwj huam mov Circuit Court tsis tuaj yeem ua haujlwm zoo, tab sis qhov tseeb, qhov no tsuas yog ua tiav thawj kauj ruam,cov MOSFET tus kheej cov kab mob parasitic yog suav tias yog qhov tseem ceeb tshaj plaws rau kev puas tsuaj rau lub zog hluav taws xob.

Kev tsav tsheb tam sim ntawm MOSFETs nrog lub zog ICs

Ib tug zoo MOSFET tsav Circuit Court muaj cov kev cai hauv qab no:

(1) Lub sijhawm hloov pauv, tus tsav tsheb Circuit Court yuav tsum muaj peev xwm tso tawm qhov tam sim no loj heev, kom lub MOSFET lub rooj vag-qhov chaw nruab nrab ntawm qhov kev khiav hauj lwm voltage nce sai sai rau tus nqi uas yuav tsum tau ua, kom ntseeg tau tias qhov hloov pauv tuaj yeem tig. ntawm sai sai thiab yuav tsis muaj cov zaus oscillations ntawm qhov nce siab.

(2) lub sijhawm hloov hluav taws xob rau thiab tawm, lub tshuab hluav taws xob tuaj yeem ua kom ntseeg tau tias MOSFET lub rooj vag qhov chaw nruab nrab ntawm qhov kev khiav hauj lwm voltage tau khaws cia rau lub sijhawm ntev, thiab ua haujlwm zoo.

(3) Kaw ib lub sijhawm ntawm lub voj voog tsav, tuaj yeem muab qhov tsis muaj impedance channel rau MOSFET lub rooj vag qhov chaw muaj peev xwm ua haujlwm ntawm qhov hluav taws xob nrawm, kom ntseeg tau tias qhov hloov pauv tuaj yeem tua tau sai.

Yuav ua li cas xaiv tus tsav tsheb tsim nyog tshaj plaws rau MOSFET (1)

(4) Kev tsim kho yooj yim thiab txhim khu kev qha ntawm tsav circuits nrog qis hnav thiab tsim kua muag.

(5) Raws li qhov xwm txheej tshwj xeeb los ua kom muaj kev tiv thaiv.

Hauv kev tswj module fais fab mov, feem ntau yog lub hwj chim mov IC ncaj qha tsav MOSFET. daim ntawv thov, yuav tsum tau them sai sai rau lub loj tsav lub siab tshaj plaws tus nqi ntawm lub hwj chim txaus, MOSFET tis capacitance 2 lub ntsiab tsis. Fais fab IC tsav muaj peev xwm, MOS faib peev xwm loj, tsav resistor kuj tus nqi yuav ua rau MOSFET fais fab hloov tus nqi. Yog tias kev xaiv ntawm MOSFET kev faib khoom muaj peev xwm loj, lub zog hluav taws xob IC sab hauv tsav muaj peev xwm tsis txaus, yuav tsum nyob rau hauv lub voj voog tsav los txhim kho lub peev xwm tsav, feem ntau siv lub totem ncej fais fab mov Circuit Court los txhim kho lub zog IC tsav lub peev xwm. .