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TEST YOUR BRAIN! Basic Circuits. Potential Dividers Creates a set voltage.

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Presentation on theme: "TEST YOUR BRAIN! Basic Circuits. Potential Dividers Creates a set voltage."— Presentation transcript:

1 TEST YOUR BRAIN! Basic Circuits

2 Potential Dividers Creates a set voltage

3 Potential Divider R1 R2 VsVout = Vs x R2 R1 + R2 Vout = 10 x 100 = 1000 = 5V R1 = 100 Vs = 10V R2 = 100 Vout = 5V Vout = 10 x 40 = 400 = 6.6V R1 = 20 Vs = 10V R2 = 40 Vout = 6.6V Vout = 10 x 20 = 200 = 3.3V R1 = 40 Vs = 10V R2 = 20 Vout = 3.3V

4 Potentiometer Creates an adjustable voltage

5 Potentiometer VR1 10V Volts

6 Potentiometer VR1 10V 7.5V Volts

7 Potentiometer VR1 10V 5V Volts

8 Potentiometer VR1 10V 2.5V Volts

9 Potentiometer VR1 10V 0V Volts

10 LDR Potential Divider Converts a light level into a voltage

11 LDR Potential Divider 10V Vout Volts LDR Resistance

12 LDR Potential Divider 10V Vout Volts LDR Resistance

13 LDR Potential Divider 10V Vout Volts LDR Resistance

14 LDR Potential Divider 10V Vout Volts LDR Resistance

15 LDR Potential Divider 10V Vout Volts LDR Resistance

16 Comparator Compares two different input voltages

17 Comparator Inverting > Non-inverting

18 Comparator Inverting = Non-inverting

19 Comparator Inverting < Non-inverting

20 Light Sensor LED lights on when it is dark

21 Light Sensor LDR Resistance Inverting input voltage Output voltage V Vout Non-Inverting input voltage

22 Light Sensor LDR Resistance Inverting input voltage Output voltage V Vout Non-Inverting input voltage

23 Light Sensor LDR Resistance Inverting input voltage Output voltage V Vout Non-Inverting input voltage

24 Light Sensor LDR Resistance Innverting input voltage Output voltage V Vout Non-Inverting input voltage

25 555 Timer Astable Circuit Produces continuous pulses

26 555 Astable Circuit F = (R 1 +2R 2 ) x C1

27 555 Astable Circuit SMALL CAPACITOR HIGH FREQUENCY

28 555 Astable Circuit LARGE CAPACITOR LOW FREQUENCY

29 555 Timer Monostable Circuit Produces a pulse of a set length

30 555 Monostable Circuit T = 1.1 x C 1 x R 1

31 555 Monostable Circuit Trigger Output

32 555 Monostable Circuit

33 Field Effect Transistor (FET) Allows a voltage to control a large Current.

34 Transistor Driver B C E A small current on the base creates a large current through the speaker

35 Transistor Driver B C E A small current on the base creates a large current through the lamp

36 Field Effect Transistor (FET)

37 FET Driver V A voltage on the gate controls the current through the lamp. G D S

38 Logic Gates

39 AND

40 AND Gate ABQ 000 Truth Table A B Q A=0 B=0 Q=0

41 AND Gate ABQ Truth Table A B Q A=0 B=1 Q=0

42 AND Gate ABQ Truth Table A B Q A=1 B=0 Q=0

43 AND Gate ABQ Truth Table A B Q A=1 B=1 Q=1

44 OR

45 OR Gate ABQ 000 Truth Table A B Q A=0 B=0 Q=0

46 OR Gate ABQ Truth Table A B Q A=0 B=1 Q=1

47 OR Gate ABQ Truth Table A B Q A=1 B=0 Q=1

48 OR Gate ABQ Truth Table A B Q A=1 B=1 Q=1

49 NOT

50 NAND

51 NOR

52 Symbol Resistor A resistor limits the amount of current flowing in a circuit


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