fet amp - FET Ampliers 20v 20v 6.6k 6.6k vgs VGS = 5v +...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
Lecture 21-1 FET Amplifiers 20v 6.6k v gs V GS = 5v I DS (mA) V GS =4.0V V GS =3.0V V GS =2.0V V GS =1.0V V GS =5.0V V DS 0 10 20 0 1 2 3 V T0 =1.0V K p =2e-5 [A/V 2 ] W=100 microns L=10 microns 20v 6.6k V GS = 5v V DS +v ds + - V DS + -
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Lecture 21-2 FET Amplifiers 20v R D =6.6k v gs V GS = 5v I DS (mA) V GS =4.8V V GS =5.0V V DS 01 0 20 0 1 2 3 V GS =5.2V A 200mv peak ac input voltage will cause more than a 1v peak ac output voltage What would we change to make the voltage gain even larger? v V DD R D i D = ~2V
Background image of page 2
Lecture 21-3 dc Solution of FET Amplifier Set the ac source to zero and analyze the dc bias point Solution should agree with that from load line approximation IDS1 1.919 mA + 20V VDD - + 5V VGS1 L=10E-6 W=100E-6 +- VD 7.335 V RC 6.6k
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Lecture 21-4 dc Solution of FET Amplifier Response for a 5kHz, 0.2v peak ac input signal time 0 2 4 6 8 10 e-4s 4 5 6 7 8 9 V out V in
Background image of page 4
Lecture 21-5 dc Solution of FET Amplifier The output signal is somewhat distorted for a 0.4v peak ac input time 0 2 4 6 8 10 e-4s 4 5 6 7 8 9 10 V out V in
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Lecture 21-6
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 17

fet amp - FET Ampliers 20v 20v 6.6k 6.6k vgs VGS = 5v +...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online