Uyini umehluko phakathi kwama-MOSFET nama-Triode uma esetshenziswa njengamaswishi?

I-MOSFET ne-Triode yizici ze-elekthronikhi ezivame kakhulu, zombili zingasetshenziswa njengokushintshwa kwe-elekthronikhi, kodwa futhi ezikhathini eziningi ukushintshanisa ukusetshenziswa kokushintsha, njengendlela yokushintsha,I-MOSFETfuthi i-Triode inokufana okuningi, kukhona nezindawo ezihlukene, ngakho-ke okubili kufanele kube indlela yokukhetha?

I-Triode inohlobo lwe-NPN nohlobo lwe-PNP. I-MOSFET futhi ine-N-channel ne-P-channel.Amaphini amathathu e-MOSFET yisango G, i-drain D kanye nomthombo S, kanti amaphinikhodi amathathu e-Triode yi-base B, umqoqi C kanye ne-emitter E. Uyini umehluko phakathi kwe-MOSFET ne-Triode?

I-N-MOSFET ne-NPN Triode esetshenziswa njengomgomo wokushintshwa

(1) Imodi yokulawula ehlukile

I-Triode iyingxenye yokulawula uhlobo lwamanje, futhi i-MOSFET iyizingxenye zokulawula amandla kagesi, i-Triode ezidingweni zamandla kagesi okufakwayo ohlangothini lokulawula iphansi kakhulu, ngokuvamile i-0.4V iye ku-0.6V noma ngaphezulu ingenziwa i-Triode ivuliwe, ngokushintsha umkhawulo oyisisekelo. i-resistor yamanje ingashintsha isisekelo samanje. I-MOSFET ilawulwa yi-voltage, i-voltage edingekayo ekuqhubeni imvamisa iba ngu-4V kuya ku-10V, futhi lapho ukugcwaliswa kufinyelelwa, i-voltage edingekayo iba ngu-6V kuya ku-10V. Ekulawulweni kwezikhathi zamandla kagesi aphansi, ukusetshenziswa okuvamile kwe-Triode njengesishintshi, noma i-Triode njengesilawuli se-buffer MOSFET, njengama-microcontrollers, i-DSP, i-PowerPC namanye ama-processor we-I/O embobo kagesi iphansi uma kuqhathaniswa, i-3.3V noma i-2.5V kuphela. , ngokuvamile ngeke ilawule ngokuqondileI-MOSFET, i-voltage ephansi, i-MOSFET ayikwazi ukuqhutshwa noma ukumelana kwangaphakathi kokusetshenziswa okukhulu kwangaphakathi Kulesi simo, ukulawulwa kwe-Triode kuvame ukusetshenziswa.

(2) I-impedance yokufaka ehlukile

I-impedance yokufaka ye-Triode incane, i-impedance yokufaka ye-MOSFET inkulu, amandla okuhlangana ahlukile, amandla okuhlangana kwe-Triode makhulu kune-MOSFET, isenzo ngokufanele ku-MOSFET sishesha kune-Triode;I-MOSFETekuzinzeni okungcono, i-multi-conductor, umsindo omncane, ukuzinza okushisayo kungcono.

Ukumelana kwangaphakathi kwe-MOSFET kuncane kakhulu, futhi ukwehla kwamandla kagesi e-Triode aku-state kucishe kube njalo, ezikhathini ezincane zamanje, ngokuvamile kusebenzisa i-Triode, futhi isebenzisa i-MOSFET noma ngabe ukumelana kwangaphakathi kukuncane kakhulu, kodwa okumanje kukhulu, ukwehla kwamandla kagesi nakho enkulu kakhulu.