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Intro to Analog Circuit Design

This document provides an overview of basic analog circuit components and design. It discusses passive components like resistors, capacitors, and inductors. It also covers active components including diodes, transistors, voltage and current sources. Circuit examples are provided for half wave and full wave rectifiers, transistor switches, LEDs, LDRs, thermistors, relays, 555 timer circuits, op-amps, and comparators. The purpose is to introduce fundamental analog devices and circuits for electronic design.

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neeraj
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31 views25 pages

Intro to Analog Circuit Design

This document provides an overview of basic analog circuit components and design. It discusses passive components like resistors, capacitors, and inductors. It also covers active components including diodes, transistors, voltage and current sources. Circuit examples are provided for half wave and full wave rectifiers, transistor switches, LEDs, LDRs, thermistors, relays, 555 timer circuits, op-amps, and comparators. The purpose is to introduce fundamental analog devices and circuits for electronic design.

Uploaded by

neeraj
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PPTX, PDF, TXT or read online on Scribd
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Basic Analog circuit

Designing
By:-HARIOM
Roll no. 14152037

Basic Circuit
components

Semiconductor
devices

Passive

Active
Voltage source
Current source

Diodes
Resistors

Capacitors

Inductors

Transistors

Resistors

Coding

Types of values written

47R
5R6
6k8
1M2
Uses

Variable resistors

Other types of resistors


Thermistors
Equation of
operation

PTC
Resistance increases with
temperature
NTC
Resistance decreases with
temperature

LDR
Light Dependent resistor
Made of CdS,CdSe,PbS
Uses
On off light relay
As a light meter to
measure intensity of light

Capacitors
Types
Ceramic
Electrolytic
Measuring
Uses :-as filter, DC
blocker & for storing
electricity

Rectifiers
Half wave rectifier
2. Full wave rectifier
a. Centre tapped
b. Bridge type
1.

Half wave rectifier

Input

Output

Full wave rectifier

Input

Output

Centre tapped

Output

Input

Bridge type

Light emitting diode-LED

AnLEDis
asemiconductorlight
source.
Uses
Generallighting
Displays
Trafficandstreetlights
Decorativepurposes

LIGHT DEPENDENT
RESISTANCE

IT IS AUTOMATIC VARIABLE RESISTANCE.


ITS INTERNAL RESISTANCE DEPENDS ON THE
INTENSITY OF LIGHT.
WHENEVER INTENSITY OF LIGHT INCREASES
RESISTANCE IS DECREASE & VICE-VERSA.

Relay
Mechanicallycontrolled
electricallyactivated
switch
Uses
Toswitchfromlow
currenttohighcurrent

Working of relay with a simple


circuit

Transistors
Transfer resistor
Uses

Amplifiers
Switches
Regulators

Transistor as a switch

Principle-Becauseatransistor'scollectorcurrentis
proportionallylimitedbyitsbasecurrent,itcanbe
usedasasortofcurrent-controlledswitch.

Advantages of transistor switch over normal


switch

Asmallswitchmaybeused
tocontrolarelativelyhighcurrentload
Veryquickandefficient

Switching by LDR

Switching by THERMISTOR

Breadboard

Internal connections in a breadboard

Multimeter
How to use is it?
Measuring
resistance
Measuring current
Measuring voltage
Checking
continuity
Measuring the type
of transistor

TRANSISTOR AS A AMPLIFIER
Merits : Operating point is almost independent of
variation.
Operating point stabilized against shift in
temperature

555 TIMER IC

PIN NAMES

INERNAL VIEW

MULTIVIBRATOR BY 555 TIMER


IC

BISTABLE

ASTABLE

OP-AMP

INTERNAL CIRCUIT

PIN NAMES

NON-INVERTING
COMPRATOR
If Vin>Vref ,output becomes +Vsat.
If Vin<Vref ,output becomes Vsat.

INVERTING COMPRATOR
If Vin<Vref ,output becomes +Vsat.
If Vn>Vref ,output becomes -Vsat.

THANK YOU

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