1 / 41

chapter 5: operational amplifiers

introduction. Introduction . The operational amplifier or op-amp is a circuit of components integrated into one chip. A typical op-amp is powered by two dc voltages and has an inverting(-) and a non-inverting input ( ) and an output.An op amp is an electronic device which provides a voltage output based on the voltage input .

Ava
Download Presentation

chapter 5: operational amplifiers

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: introduction Chapter 5: Operational Amplifiers Fig 12-1 a&b op-amp schem. symbolsFig 12-1 a&b op-amp schem. symbols

    2: introduction Fig 12-1 a&b op-amp schem. symbolsFig 12-1 a&b op-amp schem. symbols

    3: introduction Basic op-amp

    4: introduction Operational Amplifiers Five important pins 2 – The inverting input 3 – The non-inverting input 6 – The output 4 – The negative power supply V- (-Vcc) 7 – The positive power supply V+ (+Vcc)

    5: introduction Operational Amplifiers The output of the op amp is given by the following equation: Vd = E1 – E2 and Vo = AVOL(Vd) AVOL is called the open-loop voltage gain because it is the gain of the op amp without any external feedback from output to input

    6: introduction Operational Amplifiers Positive Saturation – where the output voltage exceeds the positive power input

    7: introduction Operational Amplifiers Linear Region – where the output voltage is linear based on A (gain)

    8: introduction Operational Amplifiers Negative Saturation – where the output voltage would be less than the negative power input

    9: introduction Operational Amplifiers

    10: introduction What do they really look like?

    11: introduction IC Circuit

    12: introduction Operational Amplifiers

    13: introduction Operational Amplifiers Fig 12-2a&b ideal and practical op-ampFig 12-2a&b ideal and practical op-amp

    14: application Application in op-amp There are 2 types of application in op-amp Linear application Non-linear application Linear application is where the op-amp operate in linear region: Assumptions in linear application: Input current, Ii = 0 Input voltage: V+=V- Feedback at the inverting input

    15: application Non-linear application is where the op-amp operate in non-linear region By comparing these two input voltages: positive input voltages, V+ and negative input voltage, V- where: VO = VCC if V+ > V- VO = -VEE if V+ < V- Input current, Ii = 0 Application in op-amp

    16: application Applications of op-amp Comparator (Pembanding) Inverter (Penukar) Audio amplifier (Penguat Audio) Difference Amplifier (Penguat Beza) Filter (Penapis) Summing Amplifier (Penguat Jumlahan)

    17: application Op-amp Circuit Application Penguat menyongsang Penguat tidak menyongsang Penambah menyongsang Pengikut voltan Penguat penolak Penguat instrumentasi Pengamil Pengkerbezaan

    18: application Inverting Amplifier Non-Inverting Amplifier Summing Amplifier Unity Follower Difference Amplifier Integrators Differentiators

    19: application:inverting amplifier Application: Inverting amplifier

    20: application:inverting amplifier Summary of op-amp behavior

    21: application:inverting amplifier Summary of op-amp behavior

    22: application:inverting amplifier To analyze an op-amp circuit for linear operation

    23: application:inverting amplifier Analysis of inverting amplifier

    24: application:non-inverting amplifier Application:Non-inverting amplifier

    25: Non-inverting configuration

    26: application:summing amplifier Application: Summing amplifier

    27: Summing Amplifier

    28: application:unity-follower Application: Unity Follower(Pengikut Voltan)

    29: application:difference amplifier Application: Difference amplifier (Penguat Penolak)

    30: application:instrumentation amplifier Application: Instrumentation Amplifier (Penguat Instrumentasi)

    31: application:integrator Application:Integrator (Pengamil)

    32: application:differentiator Application: Differentiation (Pengkerbezaan)

    33: exercise Exercise 1

    34: exercise Exercise 2

    35: exercise Exercise 3

    36: exercise Exercise 4

    37: non-linear application Non-linear application is where the op-amp operate in non-linear region By comparing these two input voltages: positive input voltages, V+ and negative input voltage, V- where: VO = VCC if V+ > V- VO = -VCC if V+ < V- Input current, Ii = 0 Recall: Non-linear application in op-amp

    38: non-linear application:comparator Non-linear application: Comparator (Pembanding)

    39: non-linear application:comparator Non-linear application: Comparator (Pembanding)

    40: non-linear application:schmitt trigger Non-linear application Schmitt Trigger (Pemicu Schmitt)

    41: non-linear application:schmitt trigger Non-linear application Schmitt Trigger (Pemicu Schmitt)

More Related