ELECTRONIC CIRCUIT DESIGNELECTRONIC CIRCUIT DESIGN

JEFF L. HOMERESPh. D. TM Student

What is an Electronic Circuit What is an Electronic Circuit Design?Design?

It is a plan or drawing produced to show the look and function or workings of an electronic circuit.

What is an Electronic Circuit ?What is an Electronic Circuit ?

An electronic circuit is composed of individual electronic components, such as resistors, transistors, capacitors, inductors, ICs and diodes, connected by conductive wires or traces through which electric current can flow.

An Electronic CircuitAn Electronic Circuit

An Electronic CircuitAn Electronic Circuit

Stages of Electronic Circuit Design

Stages of Electronic Circuit Stages of Electronic Circuit DesignDesign

1. Defines the requirement specification after communicating with the customer;

Stages of Electronic Circuit Stages of Electronic Circuit DesignDesign

2. Composes a technical proposal to meet the requirements of the customer specification;

Stages of Electronic Circuit Stages of Electronic Circuit DesignDesign

3. Draws a schematic circuit diagram that realizes the specifications;

Stages of Electronic Circuit Stages of Electronic Circuit DesignDesign

4. Calculates the component values to meet the operating specifications under specified conditions;

Stages of Electronic Circuit Stages of Electronic Circuit DesignDesign

5. Performs simulations to verify the correctness of the design;

Stages of Electronic Circuit Stages of Electronic Circuit DesignDesign

6. Builds a prototype version of the design and testing against specification;

Stages of Electronic Circuit Stages of Electronic Circuit DesignDesign

7. Makes any alterations to the circuit to achieve compliance;

Stages of Electronic Circuit Stages of Electronic Circuit DesignDesign

8. Chooses a method of construction as well as all the parts & materials to be used;

Stages of Electronic Circuit Stages of Electronic Circuit DesignDesign

9.Presents component and layout information to drafters, layout and mechanical engineers, for prototype production;

Stages of Electronic Circuit Stages of Electronic Circuit DesignDesign

10. Test or type-test a number of prototypes to ensure compliance with customer requirements;

Stages of Electronic Circuit Stages of Electronic Circuit DesignDesign

11. Signs and approves the final manufacturing drawings;

Stages of Electronic Circuit Stages of Electronic Circuit DesignDesign

12. Post-design services.

How to Design an Electronic Circuit for LED Emergency Lighting

System

Designing the circuit for Designing the circuit for LED Emergency Lighting System LED Emergency Lighting System

1. Analyze the required features

LED (Light Emitting Diode) Rechargeable battery Battery Charger circuit Light Dependent Resistor (LDR) LED driver

Designing the circuit for Designing the circuit for LED Emergency Lighting System LED Emergency Lighting System

2. Convert the required features into functional blocks

LED LDRRECHARGEABLE

BATTERY

BATTERY CHARGER LED DRIVER

Designing the circuit for Designing the circuit for LED Emergency Lighting System LED Emergency Lighting System

3. Convert the functional blocks into block diagram

Designing the circuit for Designing the circuit for LED Emergency Lighting System LED Emergency Lighting System

LEDLDR

RECHARGEABLE BATTERY

BATTERY CHARGER

LED DRIVER

Designing the circuit for Designing the circuit for LED Emergency Lighting System LED Emergency Lighting System

4. Design a circuit for each individual block

Designing the circuit for Designing the circuit for LED Emergency Lighting System LED Emergency Lighting System

5. Interconnect the circuits of each individual block to complete a schematic diagram

Designing the circuit for Designing the circuit for LED Emergency Lighting System LED Emergency Lighting System

6. Design the Printed Circuit Board Layout

PCB 3D VISUALIZATIONPCB 3D VISUALIZATION

Things we need to know before we Things we need to know before we can design an electronic circuit:can design an electronic circuit:

basic characteristics of voltage, current, and resistance

Basic knowledge on Electronics theories and principles

Functions and applications of electronic components

Basic knowledge on basic circuits like amplifiers, power supplies, etc.

Knowledge on how to operate a circuit design and simulation software

ELECTRONIC CIRCUIT DESIGNELECTRONIC CIRCUIT DESIGN

THANK YOU for Listening….