1 / 9

Lecture Note 6

Lecture Note 6. 2010103793 생체의공학과 변철 민. Contents. 차동 증폭기. Differential Amp. V 0 = (V 2 -V 1 ). Vdm =V2-V1 ->differential mode sg Vcm = (V2+V1) ->common-mode sg V1= Vcm- Vdm V2= Vcm + Vdm. R2(1-. -+. V cm. - +. V d m. R1. R2. -+. 차동 증폭기. Differential Amp.

haviva-finley
Download Presentation

Lecture Note 6

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Lecture Note6 2010103793 생체의공학과 변철민

  2. Contents

  3. 차동 증폭기 Differential Amp V0=(V2-V1) Vdm=V2-V1 ->differential mode sg Vcm=(V2+V1) ->common-mode sg V1=Vcm-Vdm V2=Vcm+Vdm R2(1- -+ Vcm - + Vdm R1 R2 -+

  4. 차동 증폭기 Differential Amp V0=(V2-V1) R1 V0=(V2-V1) R2 =>단점: 입력에서 부하효과 발생 - + RG 이득조절 R3 R2 R1 - +

  5. 7 U1 3 5 V1 V+ + OS2 Vo1 6 OUT 2 1 4 - OS1 R3 V- V1 RG V2 4 2 1 R3 V- - OS1 6 OUT 3 5 V2 7 + OS2 Vo2 V+ Instrumentation Amp 계측용 증폭기 1단 iG= 차동 입력-차동 출력 증폭기

  6. Instrumentation Amp 계측용 증폭기 2단

  7. Instrumentation Amp 계측용 증폭기 입력저항 매우 큼 출력저항 매우 작음 전압이득:가변가능 CMRR 최대 튜닝가능

  8. Instrumentation Amp 계측용 증폭기의 응용 해결 - + “Ground loop” Stray Capacitor 다르다 잡음 발생 Balanced Transmission

  9. Thank You!

More Related