CE, CB, CC AMPLIFIERS

CE, CB, CC AMPLIFIERS

• 1.
  MINI PROJECT PRESENTATIONON CE, CB, CC AMPLIFIERS Guide: Mr. S.Sravana Kumar Asst. Professor Adithya.R ………………..….11E31A0401[ECE-A IV Year] A.Sindhu Reddy………….…11E31A0402[ECE-A IV Year] Anirudh Kulkarni…………..11E31A0403[ECE-A IV Year] A.Bhanuteja………………….11E31A0404[ECE-A IV Year] B.Bharath Kumar Reddy…11E31A0405[ECE-A IV Year]
• 2.
  CONTENTS  INTRODUCTION  DIODE POWER SUPPLY  COMPONENTS OF POWER SUPPLY  TRANSISTOR  BIPOLAR TRANSISTOR  CE APMLIFIER  CB AMPLIFIER  CC AMPLIFIER  SOFTWARE DIAGRAMS
• 3.
  INTRODUCTION  An amplifieris an electronic device that increases the voltage, current, or power of a signal.  There are four basic types of electronic amplifier: • Voltage amplifier • Current amplifier • Transconductance amplifier • Transresistance amplifier
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  Diode  Diodes arebasic unidirectional Semiconductor Devices.  It has an exponential I-V relationship.  Diodes are manufactured using Doping Technique
• 5.
  Resistivity Chart
• 6.
  POWER SUPPLY  Themain aim of this power supply is to convert the 230V AC into 5V DC.  In this process we are using a step down transformer, a bridge rectifier, a smoothing circuit and the RPS. Functional block diagram
• 7.
  Components in Powersupply  1.Step-down Transformer- To step down 230V A.C to 5V A.C .  2.Rectifier- used to convert A.C to pulsating D.C.  3.Filter- Converts Pulsating DC into Pure D.C.  4.Voltage Regulator-7805-used to supply a stable voltage.
• 8.
  Bridge rectifier  Abridge rectifier is an arrangement of four or more diodes in a bridge circuit configuration which provides the same output polarity for either input polarity.  It is used for converting an alternating current (AC) input into a direct current (DC) output.
• 9.
  TRANSISTOR  A transistoris a semiconductor device.  It can be used as an Amplifier or as a Switch.  Transistors are the basic elements in integrated circuits (ICs).  The Major types of transistor are: • BJT • JFET • MOSFET • UJT
• 10.
  Bipolar Junction Transistor Two junction, three terminal device formed by joining together two individual signal diodes back-to-back.  The three terminals are known as • The Emitter ( E ) • The Base ( B ) • The Collector ( C )
• 11.
   Transistor hasThree basic configurations: • Common Emitter Configuration – has both Current and Voltage Gain. • Common Base Configuration – has Voltage Gain but no Current Gain. • Common Collector Configuration – has Current Gain but no Voltage Gain.  Bipolar Transistors have the ability to operate within three different regions: • Active Region – the transistor operates as an amplifier and Ic = β.Ib • Saturation – the transistor is “Fully-ON” operating as a switch • Cut-off – the transistor is “Fully-OFF” operating as a switch
• 12.
  Output Characteristics Curvesof a Typical Bipolar Transistor
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  Common Emitter Amplifier a common emitter amplifier is typically used as a voltage amplifier  Input is applied to base ,output is taken across collector and the emitter is grounded.  Features: • Moderate /high input impedance. • Moderate output impedance. • High Voltage Gain • High Currant Gain. • Output is Inverted
• 14.
  Experimental Output ofCE Amplified output Signal Input
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  Common base amplifier A common base also known as grounded-base amplifier is typically used as a voltage amplifier.  In this circuit • The emitter terminal serves as the input • The collector as the output • The base is connected to ground, or "common”.  Features: • Low input impedance. • Moderate/High output impedance. • High Voltage Gain • Unity Current Gain. • Non-inverting amplifier. The Common base amplifier circuit
• 16.
  Experimental Output ofCB Amplifier Signal Input Amplified output
• 17.
  Common collector  Commoncollector amplifier also known as an emitter follower typically used as a voltage buffer.  In this circuit • The base terminal serves as the input, • The emitter is the output • The collector is common.  Features: • Moderate/high input impedance. • Low output impedance. • Low (unity) voltage gain. • High Current Gain. The CC amplifier circuit
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  Experimental Output ofCC Amplifier. Signal Input Signal output
• 19.
  PROTEL Circuit DesignDiagram.
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  SOFTWARE PROTEUS CIRCUITS
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  CE Amplifier
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  CB Amplifier
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  CC Amplifier
• 24.
  Completed Circuit Board
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  Thank you