Basic Circuits TEST YOUR BRAIN!.

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Presentation transcript:

Basic Circuits TEST YOUR BRAIN!

Creates a set voltage Potential Dividers

Potential Divider Vout = 10 x 100 = 1000 = 5V 100 +100 200 100 +100 200 R1 = 100 Vs = 10V R2 = 100 Vout = 5V Vout = 10 x 40 = 400 = 6.6V 20 + 40 60 R1 = 20 Vs = 10V R2 = 40 Vout = 6.6V Vout = 10 x 20 = 200 = 3.3V 40+20 60 R1 = 40 Vs = 10V R2 = 20 Vout = 3.3V R1 R2 Vs Vout = Vs x R2 R1 + R2

Creates an adjustable voltage Potentiometer

Potentiometer 10V 10V VR1 Volts

Potentiometer 10V 7.5V VR1 Volts

Potentiometer 10V VR1 5V Volts

Potentiometer 10V VR1 2.5V Volts

Potentiometer 10V VR1 0V Volts

Converts a light level into a voltage LDR Potential Divider

LDR Potential Divider 10V Vout Volts LDR Resistance

LDR Potential Divider 10V Vout Volts LDR Resistance

LDR Potential Divider 10V Vout Volts LDR Resistance

LDR Potential Divider 10V Vout Volts LDR Resistance

LDR Potential Divider 10V Vout Volts LDR Resistance

Compares two different input voltages Comparator

Inverting > Non-inverting Comparator Inverting > Non-inverting

Inverting = Non-inverting Comparator Inverting = Non-inverting

Inverting < Non-inverting Comparator Inverting < Non-inverting

LED lights on when it is dark Light Sensor

Light Sensor - + Vout 10V Inverting input voltage Output voltage LDR Resistance Non-Inverting input voltage

Light Sensor - + Vout 10V Inverting input voltage Output voltage LDR Resistance Non-Inverting input voltage

Light Sensor - + Vout 10V Inverting input voltage Output voltage LDR Resistance Non-Inverting input voltage

Light Sensor - + Vout 10V Innverting input voltage Output voltage LDR Resistance Non-Inverting input voltage

Produces continuous pulses 555 Timer Astable Circuit

555 Astable Circuit F = . 1.44 . (R1+2R2) x C1

555 Astable Circuit SMALL CAPACITOR HIGH FREQUENCY

555 Astable Circuit LARGE CAPACITOR LOW FREQUENCY

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

555 Monostable Circuit T = 1.1 x C1 x R1

555 Monostable Circuit Output Trigger

555 Monostable Circuit

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

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

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

Field Effect Transistor (FET)

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

Logic Gates

AND

AND Gate A=0 A B Q=0 Q B=0 Truth Table A B Q

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

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

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

OR

OR Gate A A=0 Q=0 B=0 Q B Truth Table A B Q

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

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

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

NOT

NAND

NOR

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