Inst ToolsInst ToolsInst Tools
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
  • Request
Search
  • Books
  • Software
  • Projects
  • Process
  • Tools
  • Basics
  • Formula
  • Power Plant
  • Root Cause Analysis
  • Electrical Basics
  • Animation
  • Standards
  • 4-20 mA Course
  • Siemens PLC Course
Reading: Transistor Emitter Feedback Bias
Share
Notification Show More
Font ResizerAa
Inst ToolsInst Tools
Font ResizerAa
  • Courses
  • Design
  • PLC
  • Interview
  • Control System
Search
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
  • Request
Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Inst Tools > Blog > Electronic Devices & Circuits > Transistor Emitter Feedback Bias

Transistor Emitter Feedback Bias

Last updated: September 27, 2016 5:57 am
Editorial Staff
Electronic Devices & Circuits
No Comments
Share
1 Min Read
SHARE

If an emitter resistor is added to the base-bias circuit, the result is emitter-feedback bias, as shown in Figure. The idea is to help make base bias more predictable with negative feedback, which negates any attempted change in collector current with an opposing change in base voltage. If the collector current tries to increase, the emitter voltage increases, causing an increase in base voltage because VB = VE + VBE.

Transistor Emitter Feedback Bias

This increase in base voltage reduces the voltage across RB, thus reducing the base current and keeping the collector current from increasing. A similar action occurs if the collector current tries to decrease. While this is better for linear circuits than base bias, it is still dependent on βDC and is not as predictable as voltage-divider bias. To calculate IE, you can write Kirchhoff’s voltage law (KVL) around the base circuit.

Transistor Emitter Feedback Bias Derivation

Don't Miss Our Updates
Be the first to get exclusive content straight to your email.
We promise not to spam you. You can unsubscribe at any time.
Invalid email address
You've successfully subscribed !

Continue Reading

Zener Diode Breakdown Characteristics
Combining Independent Current Sources in Parallel
Photodiode Working Principle
VI Characteristic of a Diode
Transistor Load Line Analysis
Bipolar Junction Transistor Construction
Share This Article
Facebook Whatsapp Whatsapp LinkedIn Copy Link
Share
Leave a Comment

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Stay Connected

128.3kFollowersLike
69.1kFollowersFollow
210kSubscribersSubscribe
38kFollowersFollow

Categories

Explore More

Combining Independent Voltage Sources in Series
Transistor Base Bias
Transistor Collector Feedback Bias
Capacitively Coupled Multistage Transistor Amplifier
Difference between ideal diode & conventional diode
Basics of Amplifiers Interview Questions
How the Matrix Keypad works with a Micro controller?
Diode Limiters/Clippers Operation

Keep Learning

diode-clamper-circuit

Diode Clampers Principle

Tunnel Diode

Tunnel Diode Working Principle

energy-diagrams-for-insulator-semiconductor-and-conductor

Band Gap for Semiconductor Materials

Current Limiting Resistor

Resistors Principle & Applications

Why Silicon is preferred over Germanium ?

Why Silicon is preferred over Germanium ?

PIN Diode Working Principle

PIN Diode Working Principle

how-to-find-resistor-value

Limitations of Resistors

zener-diode-as-voltage-regulator

Operation of Zener Diode Voltage Regulator

Learn More

PLC Program for Valves

PLC Pump Permissive Interlocks

Top 100 Switchgear and Protection Interview Questions

Top 100 Switchgear and Protection Interview Questions

Digital Electronics Objective Questions

Digital Electronics Objective Questions – Set 6

In this article, you will learn the configuration of PlantPAx library in factory talk studio of Rockwell Automation.

Configuration of PlantPAx Library in Factory Talk Studio

Hot Well Level Control System in Condensing Turbine

Hot Well Level Control System in Condensing Turbine

Online Simulation

Electric Stress Control in Cables, Joints and Terminations

Electric Stress Control in Cables, Joints, and Terminations

Instrumentation Engineer in Process Plant Project

Instrumentation Engineer in Process Plant Project

Menu

  • About
  • Privacy Policy
  • Copyright

Quick Links

  • Learn PLC
  • Helping Hand
  • Part Time Job

YouTube Subscribe

Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Welcome Back!

Sign in to your account

Username or Email Address
Password

Lost your password?