1. 전자 회로 1 Lecture 7 (MOSFET-II) 2009. 05. 임한조 아주대학교 전자공학부 hanjolim@ajou.ac.kr 이 강의 노트는 전자공학부 곽노준 교수께서 08.03 에 작성한 것으로 노트제공에 감사드림.

2. May, 2008Nojun Kwak2 Review (operation mode) NMOSPMOS

3. May, 2008Nojun Kwak3 MOSFET at DC

4. May, 2008Nojun Kwak4

5. May, 2008Nojun Kwak5

6. May, 2008Nojun Kwak6 CMOS inverter

7. May, 2008Nojun Kwak7 Large signal operation

8. May, 2008Nojun Kwak8 Saturation mode:

9. May, 2008Nojun Kwak9 Biasing in MOS Amp. Amp 주로 Saturation 영역을 이용함 Cf) Inverter: Cutoff + Triode Solution: Degeneration Resistance in the Source 온도의 함수소자마다 다름 : negative feedback

10. May, 2008Nojun Kwak10 Degeneration Resistance in the Source Large Rin

11. May, 2008Nojun Kwak11 Drain-to-Gate Feedback Resistance Limited output voltage swing

12. May, 2008Nojun Kwak12 Constant Current Source Current mirror R 을 조정함으로써 I REF 를 적절히 조절

13. May, 2008Nojun Kwak13 Small signal operation DC bias point (Q-point) Total Current i D 소신호 모델 = 매우 작음

14. May, 2008Nojun Kwak14 Transcoductance & Voltage gain Transconductance Voltage Gain ( 전압이득 )

15. May, 2008Nojun Kwak15 Small signal models (hybrid-π & T)

16. May, 2008Nojun Kwak16 Channel-length Modulation (r o ) BJT 의 Early effect 모델과 비슷함 r o 를 추가 참고 : large signal model 과 gm 이 다름

17. May, 2008Nojun Kwak17 Body effect 고려 Source 가 Body 와 같은 전위가 아닐 때 사용

18. May, 2008Nojun Kwak18 Summary: Small Signal model (I)

19. May, 2008Nojun Kwak19 Summary: Small Signal model (II)