Bipolar junction transistor forward current gain digital meter
Download
1 / 45

Bipolar Junction Transistor Forward Current Gain Digital Meter - PowerPoint PPT Presentation


  • 108 Views
  • Uploaded on

Bipolar Junction Transistor Forward Current Gain Digital Meter. Group Members Amel Ahmed 980723636 Deema Omar 980424894 Mona Abdulla 980723631 Nada Ahmed 980723521 Sahar Khalid 980723832. Advisor. Dr. Jihad Mohaidat . Presentation Outline. Objectives. Methods .

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Bipolar Junction Transistor Forward Current Gain Digital Meter' - ted


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.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Bipolar junction transistor forward current gain digital meter

Bipolar Junction Transistor Forward Current Gain Digital Meter

Group Members

Amel Ahmed 980723636

Deema Omar 980424894

Mona Abdulla 980723631

Nada Ahmed 980723521

Sahar Khalid 980723832

Advisor

Dr. Jihad Mohaidat


Presentation outline
Presentation Outline

Objectives.

  • Methods.

  • Background Theory.

  • Results & Discussion.

  • Block Diagram.

  • Project Impact.

  • Flow Chart.

  • Conclusion.


Objectives
Objectives

  • To design a digital meter that measures the Bipolar Junction Transistor Forward Current Gain (β).

  • Easy and convenient way to measure β comparing with the curve tracer.


VCC

RB

RC

IC

VCE

IB

VBE

IE

Background Theory

Specifications

1 mA < IC < 10 mA

3 V < VCE < 12 V

50 < β < 300



Microcontroller

Definition

A small Computer, , containing the CPU, code memory, data memory and peripheral I/O.

Characteristics of the PIC16F877

  • It’s a FLASH programmable device.

  • Built-in Analog to Digital conversion circuitry.

  • Built-in EEPROM.

  • Supported by various programming languages.


IC

IC

RC

RC

IB

IB

RB

RB

IE

IE

Voltage Polarity Detection

NPN

PNP

15V

-15V

15V

VCE

VCE


4×4 keypad matrix

Row connector

Column connector

Keypad Principles


1

5V

GND

2

Contrast adjustment voltage

3

Register select signal

4

Read/write select signal

5

Operation enable signal

6

Data bus

7-14

Liquid Crystal Display

The LCD is a smart device, which is used to display

the output visual information.


Relays

Types of the Relay

  • Normally Open

  • Normally Closed


Relays

Types of theRelay

  • Switching Relay


Methods

Assembly Language

PicBasic Language

  • High Level Language

  • Portable from one device to another

  • Single instruction allows you to perform a complete task


Methods

Important statements for LCD

LCD_OUT


Methods

Keypad Statements


Methods

Mathematical Operations Statements


Methods

Mathematical Operations Statements


Flow chart
Flow Chart

Results & Discussion

START

Is BJT NPN OR PNP??

YES

NO

Change Polarity

Enter Values of VCE & IC


Results & Discussion

Compare between IC & ICQ

POSITIVE

ZERO

Decrease value of RC

NO

EQUAL ?

YES


Results & Discussion

Control RB

ZERO

Compare Between IC & ICQ

Different very small ?

NO

YES

Record IC & IB

Calculate B and Display it

STOP


PORT A

PORT B

PORT E

PORT D

PORT C

Results & Discussion


Results & Discussion

LCD Connection


Results & Discussion

Keypad Connection


Results & Discussion

Relay & Voltage Polarity Connections


Results & Discussion

Design of Resistors Banks

Find the acceptable values of collector and base conductance that can meet the specifications.

  • Rb

  • 7 resistors

  • Rc

  • 6 resistors


Rc

Rb

Results & Discussion

Design of Resistors Banks


Results & Discussion

Relays Circuit


R2

R1

VO1

Vi1

Results & Discussion

Op-Amp Circuit

  • Op – Amp importance :

Guarantee the acceptable voltage range to the ADC.

  • Gain of Op – Amp 1:


R2

R

R1

R

VO2

Vi1

Results & Discussion

Gain of Op – Amp 2:

Overall Gain:


Results & Discussion

  • R1 = 3 M

  • R2 = 1 M

  • R = 1 M

Gain of Op – Amp 1:

Gain of Op – Amp 2:


Results & Discussion

Overall Gain:


Results & Discussion

Percentage error:


R4

R2

1M

1M

V4

V2

15V

15V

R3

R1

U1

1M

+

3M

+

OPAMP5

U2

+

V1

OPAMP5

15V

V5

V3

-15V

-15V

Results & Discussion




Results & Discussion

Basic Pro programs

  • Program 1: Keypad controlling.

  • Program 2: Liquid Crystal Display controlling.

  • Program 3: Interfacing program between Keypad & LCD.

  • Program 4: Testing Microcontroller Mathematical operation.









Project Impact

  • The project does not have any bad impact on the environment because it will not cause any damages, hazard, or pollution in the surrounding area.

  • The technology developed in this project can be used to protect the environment, for example design a microcontroller based system to monitor the pollution in the air, or oil contents in the water.


Conclusion

Problems Faced

  • Software. (Assembly Language, Basic Pro)

  • Budget. ( Not Available)

  • Components. (Lab-X1 Board)



ad