He aha nā ʻokoʻa ma waena o MOSFET a me Triodes ke hoʻohana ʻia e like me nā hoʻololi?

ʻO MOSFET a me Triode nā mea uila maʻamau, hiki ke hoʻohana ʻia ʻelua e like me nā hoʻololi uila, akā i nā manawa he nui e hoʻololi i ka hoʻohana ʻana i nā hoʻololi, ma ke ʻano he hoʻololi e hoʻohana ai,MOSFETa me Triode he nui nā mea like, aia nā wahi like ʻole, no laila pono nā mea ʻelua pehea e koho ai?

Loaʻa iā Triode ke ʻano NPN a me ke ʻano PNP. ʻO ka MOSFET kekahi N-channel a me P-channel. ʻO nā pine ʻekolu o MOSFET ʻo ia ka puka G, ka wai D a me ke kumu S, a ʻo nā pine ʻekolu o Triode he kumu B, ʻohi C a me ka emitter E. He aha nā ʻokoʻa ma waena o MOSFET a me Triode?

Hoʻohana ʻia ʻo N-MOSFET a me NPN Triode e like me ke kumu hoʻololi

(1) Ke ano mana like ole

ʻO Triode kahi ʻano mana o kēia manawa, a ʻo MOSFET kahi mea hoʻokele uila, ʻo Triode ma nā koi uila komo o ka ʻaoʻao mana he haʻahaʻa haʻahaʻa, maʻamau 0.4V a 0.6V a i ʻole hiki ke ʻike ʻia ʻo Triode ma, ma ka hoʻololi ʻana i ka palena kumu. hiki ke hoʻololi i ke kumu o kēia manawa. ʻO ka MOSFET ka mana o ka uila, ʻo ka volta i koi ʻia no ka conduction ma kahi o 4V a 10V, a i ka hiki ʻana o ka saturation, ʻo ka volta koi e pili ana i 6V a 10V. I ka mālama ʻana i nā manawa uila haʻahaʻa, ʻoi aku ka haʻahaʻa o ka hoʻohana maʻamau o Triode ma ke ʻano he hoʻololi, a i ʻole Triode ma ke ʻano he MOSFET buffer control, e like me nā microcontrollers, DSP, PowerPC a me nā mea hana ʻē aʻe I / O port voltage he haʻahaʻa, ʻo 3.3V a i ʻole 2.5V wale nō. , 'a'ole e ho'omalu pono 'ia kaMOSFET, ka haʻahaʻa haʻahaʻa, MOSFET hiki ʻole ke conduction a i ʻole ke kū'ē kūloko o ka hoʻohana nui kūloko I kēia hihia, hoʻohana mau ʻia ka mana Triode.

(2) Hoʻokomo ʻokoʻa impedance

He liʻiliʻi ka impedance hoʻokomo o Triode, nui ka impedance hoʻokomo o MOSFET, ʻokoʻa ka capacitance junction, ʻoi aku ka nui o ka capacitance junction o Triode ma mua o ka MOSFET, ʻoi aku ka wikiwiki o ka hana ma ka MOSFET ma mua o ka Triode;MOSFETi ka paʻa o ka maikaʻi, he multi conductor, leo liʻiliʻi, ʻoi aku ka maikaʻi o ka paʻa wela.

He ʻuʻuku loa ke kūʻē ʻana o loko o MOSFET, a ʻaneʻane mau ka hāʻule ʻana o ka volta o ka mokuʻāina ʻo Triode, i nā manawa liʻiliʻi o kēia manawa, hoʻohana maʻamau iā Triode, a hoʻohana i ka MOSFET inā he liʻiliʻi loa ke kūpaʻa kūloko, akā nui ke ʻano o kēia manawa, ʻo ka hāʻule ʻana o ka uila. nui loa.