What is a Circuit Diagram? Reviewed by Momizat on . So before moving to making actual circuit it is better that we know what circuit diagram is. So in this very first post we will discuss the following topics. Wh So before moving to making actual circuit it is better that we know what circuit diagram is. So in this very first post we will discuss the following topics. Wh Rating:
You Are Here: Home » Electronics For Noob » What is a Circuit Diagram?

What is a Circuit Diagram?






So before moving to making actual circuit it is better that we know what circuit diagram is. So in this very first post we will discuss the following topics.

  1. What is a Circuit Diagram?
  2. Common Symbol used in circuit diagram.
  3. Tools to use to create a Circuit Diagram
  4. Creating a very first Circuit Diagram

What is a Circuit Diagram?

A circuit diagram is a visual representation of an electrical circuit using either basic images, parts or industry standard symbols. There are two types of circuit diagram. One is pictorial and other is the schematic based. Pictorial is excellent for beginners to understand the circuit whom are not that familiar with the standard symbols and well schematic is for guys that do understand such symbols. The pictorial diagrams are used for non technical or less technical audience. Given below is an image taken from Wikipedia clearly showing the difference between the pictorial representation and schematic representation.

Difference Between Pictorial Circuit Diagram and Schematic Circuit Diagram

Figure 1 Difference Between Pictorial Circuit Diagram and Schematic Circuit Diagram

In Fig. 1 top image shows the pictorial representation of circuit diagram and the bottom one shows the schematic representation of circuit diagram.

Common Symbol used in Circuit Diagram

Given below is another image taken from Wikipedia showing the most common symbols used in the circuit diagram.

Common Symbols used in Circuit Diagram

Figure 2 Common Symbols used in Circuit Diagram

In Fig. 2 one can see the most common and the basic symbols used in Schematic Diagrams. As you can see the most common of the symbols include resistor, capacitor, inductor, gates and power sources.

Tools to use to create a Circuit Diagram

There are many free open source and online tools available for creating schematics. I will be primarily be using one of the following tools. Eagle, ExpressPCB and Fritzing. One can download these tools from there respective website. I will also provide a small post or tutorial of sort explaining these tools and how to use these tools to create your first circuit diagram.

Creating a first circuit diagram

So what I have created here is a very simple circuit diagram consisting of a source, a LED, a switch and a Resistor. So what this will do is when you turn on the switch the LED will glow and when you turn off the switch the LED will not glow it is as simple as that.

Our First Schematic Diagram

Figure 3 Our First Schematic Diagram

So I have created this first circuit diagram containing a battery, a switch, a LED and a resistor. So how do we create a circuit diagram? In simple terms select the items you want in your circuit diagram and connect it in a close loop with a power source and voila!! you circuit diagram is complete it is that simple. I will give a detail tutorial in next post but till then you can give it a try.

In the next post I will give a small introduction to fritzing and then we will move forward to creating a pictorial schematic diagram and I will introduce bread board and how to make connection on bread board.





About The Author

I am a maker, who loves to think, hack and build new electronics stuff, I always find time to document , share my knowledge with others. I am graduate in BTech(Electronics and Communication Engineering).

Number of Entries : 37
Scroll to top