BASIC ECE Presentation Basic Electronics.ppt

ECE

2. INTRODUCTION
Definition, Brief History and
Applications

3. ELECTRONICS
Courtesy Clay Atcheson
- It compromise the physics, engineering,
technology and applications that deal with the
emission, flow and control of electrons in
vacuum and matter (Acc. to Wikipedia).

4. ELECTRONICS
Courtesy Clay Atcheson
- It is widely used in information
processing, telecommunication, and signal
processing.
- The ability of electronic devices to act as
switches makes digital information-processing
possible.

5. ELECTRONICS
Courtesy Clay Atcheson
- As of 2019, most electronic devices use
SEMICONDUCTOR components to perform
electron control.

6. BASIC ELEMENTS
Voltage, Current, Resistance, Power,
AC and DC
Parallel and Series Connections

7. Voltage
Courtesy Clay Atcheson

8. Volts, Amps, Watts
Courtesy Clay Atcheson
Current

9. Volts, Amps, WattsElectrical Charge (Q)
Equals to Current times Time. (Q =I x t)
Units: Coulomb(C) = Ampere(A) x Second(s)
Capacity:
10000 mAh
Capacity:
1000 Ah

10. Volts, Amps, Watts
Copyright 2009 Hal Aronson
Courtesy Clay Atcheson
Resistance
•Prevents the current to flow.
•Unit in ‘Ohms”.

11. Volts, Amps, Watts
Copyright 2009 Hal Aronson
Courtesy Clay Atcheson
OHM’S LAW
•Prevents the current to flow.
•Current = Voltage ÷Resistance

12. Basic Circuit

13. Copyright 2009 Hal Aronson
Can we measure Amps now?
How about Volts? How would you measure it?

14. Copyright 2009 Hal Aronson
Power
Watts: Unit of electrical power, the rate at
which energy is being used or generated.

15. Copyright 2009 Hal Aronson
Watts is the Product of Volts and Amps
Volts x Amps = Watts
12 volts x 5 amps = 60 watts

16. Copyright 2009 Hal Aronson
Watts is the Product of Volts and
Amps
Volts x Amps = Watts
Typical light bulb is 60 watts
120 volts x 0.5 amps = 60 watts
12 volts x 5 amps = 60 watts

17. Copyright 2009 Hal Aronson
Energy Consumed
Energy consumed = Power (Watts) and Time
Used (Hour).
Energy Consumed = Watts X Hour

18. Copyright 2009 Hal Aronson
Energy Consumed
Energy consumed = Power (Watts) and Time
Used (Hour).
Power = Current (A) x Voltage (V)
Energy consumed =
Voltage (V) x Current (A) x Time (h)

19. Volts, Amps, WattsElectrical Charge (Q)
Equals to Current times Time. (Q =I x t)
Units: Coulomb(C) = Ampere(A) x Second(s
or Hour)
Capacity:
10000 mAh
Capacity:
1000 Ah

20. Copyright 2009 Hal Aronson
Energy Consumed
Energy consumed =
Voltage (V) x Electrical Charge (Ah)
WATT-HOUR

21. Practice Using Power Formulas
•2 volts x 2 amps = ___________watts
•4 volts x 2 amps = __________watts
•12 volts x 2 amps = _________watts
•12 volts x 10 amps = _________watts
•24 volts x 20 amps = _________watts
•500 volts x 10 amps = ________watts
4
8
24
120
480
5000

22. Find the Energy Consumed:
•2 Watts x 2 Hour = ___________Watt-Hour
•4 volts x 2 amps x 2 Hour= __________Watt-hour
•4 Volts x 3 Ah = __________Watt-hour
4
16
12

23. Copyright 2009 Hal Aronson
Part 2: Series and Parallel Wiring

24. Copyright 2009 Hal Aronson
In similar fashion when we double the battery in series (pos to
neg)

25. Copyright 2009 Hal Aronson
In series wiring we wire the positive of one of the power sources
to the negative terminal of the other power source. E.g. two
batteries into a flashlight
1.5 volts
+
1.5 volts
= 3 volts

26. Copyright 2009 Hal Aronson
In series wiring Volts add up and amps stay constant
1.5 volts
+
1.5 volts
= 3 volts

28. Copyright 2009 Hal Aronson
Parallel Wiring
•In parallel wiring, we connect the positive lead
of one source to the positive lead of a second
power source. In parallel wiring, the voltage
stays the same, but the amps add up.

30. Combination Series-Parallel
Wiring

31. BASIC COMPONENTS
Resistor, Capacitor, Transistor,
Diode, Relay, Transformer, Printed
Circuit Board, Fuse/Circuit Breaker
and Integrated Circuit

32. RESISTOR
A device that
prevents the
current to flow.

33. RESISTOR CODING

34. GREEN BLUE BROWN
5 6 X 10
560 Ohms

35. CAPACITOR
A device that is
used to store
electric charge.

36. TRANSISTOR
A device that is to
amplify or switch
electronic signals
and electrical
power.

37. DIODE
A device that allow
an electric current
to flow in one
direction only.

38. REVERSE-BIASING
Copyright 2009 Hal Aronson

39. Copyright 2009 Hal Aronson
FORWARD-BIASING

41. RELAY
They are switches
that open and close
circuits
electronically.

42. RELAY

43. TRANSFORMER
A device that
converts high
voltage into low
voltage, vice versa.

44. TRANSFORMER

45. PRINTED CIRCUIT BOARD
It mechanically
supports and
electrically connects
electronic
components.

46. FUSE
An electrical safety
device that operates to
provide overcurrent
protection of an
electrical circuit.

47. CIRCUIT BREAKER
An electrical safety
device that
automatically stop the
flow of current in an
electrical circuit.

48. INTEGRATED CIRCUIT
A set of electronic
circuits on one small
flat piece of
semiconductor
material that is
normally silicon.