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Pertemuan 21 FIELD EFFECT TRANSISTOR ( FET )

Pertemuan 21 FIELD EFFECT TRANSISTOR ( FET ). Matakuliah : H0014/Elektronika Diskrit Tahun : 2005 Versi : 1. Learning Outcomes. Pada akhir pertemuan ini, diharapkan mahasiswa akan mampu : Menjelaskan struktur, tipe dan cara kerja dari FET. Outline Materi. Struktur FET.

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Pertemuan 21 FIELD EFFECT TRANSISTOR ( FET )

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  1. Pertemuan 21FIELD EFFECT TRANSISTOR( FET ) Matakuliah : H0014/Elektronika Diskrit Tahun : 2005 Versi : 1

  2. Learning Outcomes Pada akhir pertemuan ini, diharapkan mahasiswa akan mampu : Menjelaskan struktur, tipe dan cara kerja dari FET.

  3. Outline Materi • Struktur FET. • Simbol dan tipe FET. • Cara kerja FET.

  4. FIELD EFFECT TRANSISTOR STRUKTUR FET D G p p VDS n VGS S

  5. D VDS G G p p n VGS S D VDS p p n VGS S OPERASI FET D VDS G p p n VGS S VGS = 0 VGS = -2V VGS = -4V

  6. D D VDS VDS G G G p p p p n n VGS VGS S S D VDS p p n VGS S OPERASI FET VDS = 1V VDS = 2V VDS = 4V VGS = 0V VGS = 0V VGS = 0V

  7. KURVA KARAKTERISTIK VP = - VGS(off) ID ID Daerah Ohmic VGS = 0V IDSS Daerah Breakdown VGS = -1V Daerah aktif VGS = -2V VGS = -3V VGS(off) = -4V VDS(maks) VDS VDS VP = 4V VP Kurva drain dengan beberapa nilai VGS Kurva drain dengan gate dan source dihubung singkat

  8. D kanal + D ID G G VDS _ VGS S _ + S D _ kanal D ID G G VDS + VGS S _ + S SIMBOL DAN POLARITAS

  9. KURVA TRANSKONDUKTANSI ID VGS = 0V IDSS VGS = -1V VGS = -2V VGS = -3V VGS(off) = -4V -4 -3 -2 -1 0 VP = 4V VGS( V ) Kurva transkonduktansi dari kurva drain

  10. NORMALISASI ID IDSS 1 9/16 VGS VGS(off) 4/16 1 3/4 2/4 1/4 0 1/16

  11. CONTOH Tentukan arus drain pada rangkaian disamping ini jika arus drain maksimum IDSS = 2 mA, VGS(off) = -4 volt.

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