Mukuyang'ana kuti muphunzire bwino ma amplifiers a MOSFET? Muli pamalo oyenera. Chitsogozo chatsatanetsatanechi chimaphwanya chilichonse kuyambira pamalingaliro oyambira mpaka mapulogalamu apamwamba, kukuthandizani kuti mumvetsetse mitundu yosiyanasiyana ya zokulitsa za MOSFET ndikugwiritsa ntchito kwake.
Kumvetsetsa Zofunika za MOSFET Amplifier
Ma amplifiers a MOSFET asintha zida zamakono zamakono, ndikupereka magwiridwe antchito apamwamba kwambiri pakugwiritsa ntchito mphamvu, kuyankha pafupipafupi, komanso kuphweka kwa dera. Tisanadumphire mumitundu inayake, tiyeni timvetsetse chomwe chimapangitsa ma amplifiers a MOSFET kukhala apadera.
Ubwino waukulu wa MOSFET Amplifiers
- Kuyika kwapamwamba kolowera poyerekeza ndi ma amplifiers a BJT
- Kukhazikika bwino kwamafuta
- Makhalidwe apansi a phokoso
- Makhalidwe abwino osinthira
- Kusokoneza pang'ono pama frequency apamwamba
Common Source Amplifier: The Fundamental Building Block
Magwero wamba (CS) amplifier ndi MOSFET yofanana ndi masinthidwe wamba a emitter BJT. Ndilo mtundu wogwiritsidwa ntchito kwambiri wa MOSFET amplifier chifukwa cha kusinthasintha kwake komanso mawonekedwe ake.
| Parameter | Khalidwe | Kugwiritsa Ntchito |
|---|---|---|
| Kuwonjezeka kwa Voltage | Pamwamba (180 ° gawo losintha) | Kukulitsa zolinga zonse |
| Kulowetsa Impedans | Wapamwamba kwambiri | Magawo a Voltage amplification |
| Kutulutsa Impedans | Wapakati mpaka Pamwamba | Magawo a Voltage amplification |
Common Drain (Source Follower) Amplifier
Kukonzekera kofala kwa drain, komwe kumadziwikanso kuti source follower, ndikwabwino pakufananitsa ndi kugwiritsa ntchito buffering.
Zofunika Kwambiri:
- Kuwonjezeka kwa voltage ya Unity
- Palibe kusintha kwa gawo
- Kukwera kwambiri kolowera impedance
- Low linanena bungwe impedance
Kukonzekera kwa Common Gate Amplifier
Ngakhale sizodziwika kwambiri kuposa masinthidwe a CS kapena CD, amplifier wamba wamba amapereka maubwino apadera pamapulogalamu ena:
| Khalidwe | Mtengo | Pindulani |
|---|---|---|
| Kulowetsa Impedans | Zochepa | Zabwino pazolowera zapano |
| Kutulutsa Impedans | Wapamwamba | Kudzipatula kwabwino kwambiri |
| Kuyankha pafupipafupi | Zabwino kwambiri | Yoyenera pamapulogalamu apamwamba kwambiri |
Cascode Amplifier: Kukonzekera Kwapamwamba
Cascode amplifier imaphatikiza zinthu zabwino kwambiri zamagwero wamba komanso masinthidwe wamba a zipata, zopatsa:
- Kuyankha pafupipafupi kwabwino
- Kudzipatula kuli bwino
- Kuchepetsa zotsatira za Miller
- Mkulu linanena bungwe impedance
Mphamvu MOSFET Amplifiers
Mapulogalamu mu Audio Systems:
- Class AB audio amplifiers
- Ma amplifiers a Class D
- Makina amawu amphamvu kwambiri
- Zokweza mawu pamagalimoto
Zosiyanasiyana za MOSFET Amplifiers
Ma amplifiers osiyanasiyana ogwiritsira ntchito MOSFET ndi ofunikira mu:
- Amplifiers ogwira ntchito
- Zida zokulitsa zida
- Zosintha za analogi mpaka digito
- Zolumikizira za sensor
Zolinga Zopangira Zothandiza
| Design Mbali | Kuganizira |
|---|---|
| Kukondera | Kusankhidwa koyenera kwa malo ogwirira ntchito a DC |
| Thermal Management | Kutentha kwa kutentha ndi kukhazikika |
| Malipiro Afupipafupi | Kukhazikika pama frequency apamwamba |
| Malingaliro a Kamangidwe | Kuchepetsa zotsatira za parasitic |
Mukufuna Mayankho a Professional MOSFET Amplifier?
Gulu lathu la akatswiri limapanga mapangidwe a MOSFET amplifier pa ntchito iliyonse. Pezani mwayi ku:
- Ntchito zopangira mwamakonda
- Kufunsira kwaukadaulo
- Kusankha zigawo
- Kukhathamiritsa kwa magwiridwe antchito
Mitu Yapamwamba ndi Zochitika Zamtsogolo
Khalani patsogolo pamapindikira ndi zomwe zikuchitika muukadaulo wa amplifier wa MOSFET:
- Mapulogalamu a GaN MOSFET
- Zida za silicon carbide
- Ukadaulo wamapaketi apamwamba
- Kuphatikizana ndi machitidwe a digito
Pezani Maupangiri Athu Athunthu a MOSFET Amplifier Design
Pezani mwayi wofikira mwachangu pamapangidwe athu athunthu, kuphatikiza ma schematics, kuwerengetsa, ndi machitidwe abwino kwambiri.
