Introduction to Electronics design , passing first by intro to electricity then some PCB desigining Hacks . this was part of OSTA LAB internship program in Fablab Egypt . it is the same curriculum needed to pass MIT Fab Academy .

1. Electronics Design

2. AC vs. DC
• The big advantage that alternating current
provides for the power grid is the fact that it is
relatively easy to change the voltage of the
power, using a device called a transformer.
Power companies save a great deal of money
this way, using very high voltages to transmit
power over long distances.

3. Voltage ?
Low Pressure
H2O
High Pressure

4. A Battery
What Produces Voltage?
Lab Power Supply
Solar Cell
Nerve Cell
Electric Power Plant
A few millivolts
when activated by
a synapse

5. Symbol of Voltage sources
5
+
_
+
_
Battery
~
Time-varying
source
Solar Cell
. Generator
(power plant)

6. AC vs. DC
• Did you hear about Current War between
Nikola Tesla and Edison
• https://www.youtube.com/watch?v=vN9aR2w
Kv0U

7. Battery

8. Power supply

9. ATX terminal values

10. What is the inverse of power supply ?
• How to invert the voltage from DC to AC ?
• Why do I need such an inversion ?

11. Power inverter

12. Current ?
• Current is the flow of charge from a voltage
source
• 1 Ampere (“Amp”) = Flow of 1 Coulomb/sec

13. Electrical Element
1) RESISTORS

14. Resistor in Circuit

15. Resistor insight

16. Resistor color code

17. Symbol of Resistor

18. 4) LED
A light emitting diode is used to test circuit voltage outputs at every stage of
the circuitry.
A LED is simply a diode in which energy is released in the form of photons due
to electron transition in visible region.

19. Inductor
Circuit Diagram Symbol
https://www.youtube.com/watch?v=STDlCdZnIsw

20. • Video :
https://www.youtube.com/watch?v=ZYH9dGl4gUE
Capacitor

21. • They both store energy
• Capacitor stores it in the form of voltage
• Inductor stores it in the form of current
Capacitor VS Inductor

22. BreadBoard

23. Breadboard Apart

24. Breadboard

25. High current on breadboard

26. First Practical Circuit

27. Connection/wiring diagram

28. Connector
Snap 9v connector
Single AA battery holder

29. Strip Board

30. Switches
• Industrial Buttons

31. Push buttons
Reed switch
Limit Switch
Thermo Switch

32. KeyPad

33. Voltage Regulators
78XX
79XX
lm317

34. LM317

35. Read Circuit Diagram

36. Symboles

37. Symbols

38. 555

39. Light sensor using LDR

40. Relay
• Electromechanical Switch

41. Relay contactor
N/O , N/C

42. Relay in a datasheet

43. Transistors
• BJT
• Mosfet
• J-Fet
• IGBT

44. PCB Design

45. PCB

46. Etching after Toner

47. Put components and Solder

48. Components types
• SMD
• Through holes

49. SMD

50. Through hole Parts

51. Packages
IC

52. Packages

53. Footprints

54. Schematic to PCB

55. Traces
• Idiom instead of Wires

56. Pads

57. What is wrong ?

58. Jumpers
• Wires on the components side

59. Jumpers

60. Programs to Design on
• Fritzing
• Eagle
• Proteus
• KiCAD
• Express PCB
• ORCAD
• Ultisim
• Altium

61. PCB Manufacturing
• Etching PCB
• Milling PCB ( modela )
• Electrolyte