Schematic powerpoint

A brief description of common electrical schematic symbols.

1. Basic Electronics Refresher By Chris Franckowiak schematics

2. What are schematics? A schematic is a structural or procedural diagram, especially of an electrical or mechanical system. schematic. ( n.d. ) The American Heritage® Dictionary of the English Language, Fourth Edition . (2003). Retrieved June 25 2012 from http://www.thefreedictionary.com/schematic

3. Schematics Used to graphically represent what a circuit is doing and how it is functioning. An atlas or roadmap of an electrical circuit

4. Common symbols The following slides look at some of the most common symbols found in electrical schematics Not all-inclusive – many others used

5. Resistors Variable Resistor (Pods) Fixed Resistor A resistor is part of an electrical circuit that resists the flow of current Measured in Ohms after Ohms Law Ohms Law: I (current) = V (Voltage) / R (Resistance)

6. Inductors Air Core Inductor Variable Inductor A passive electrical component that stores energy in its magnetic field Also known as coils and chokes Used in analog circuits and signal processing

7. Capacitors A passive electrical component used to store energy in an electric field Used to block DC while allowing AC to pass (filter) Smoothing outputs of power supplies

8. Diodes Many types ( Zener , Avalanche, Gunn, IMPATT) Low resistance to current flow in one direction and high (indefinite) resistance in the other direction Used in rectifiers General Gunn

9. Common symbols Tie Points Tie Points show things that are connected Considered a path

10. Ground Different types of grounds Earth ground tied to earth Chassis ground tied to common ground on the circuit/equipment Earth Chassis

11. Conductors Tie Points and overlapping lines How current reaches individual components (resistors, capacitors, etc..)

12. Switches Many, many types Classified by poles, throw Used to redirect current flow

13. transistors Many different types Used to amplify and switch electronic signals

14. Battery Power supplies DC, AC

15. Inductors Known as chokes, coils Stores energy in its electrical field Many types as well

16. Gates Logic gates And, OR, NAND, NOR, NOT, XOR, XNOR Can be used to store data

17. COnclusion Symbols represent how the circuit functions Many slides could be made for each component (this is just a review of what you will see) By knowing what each one is and how they work – schematics become very familiar It is a learning process