PART13 Fundamental Logic Circuit

Experiment 4 : NOT Gate (INVERTER)

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PART13Fundamental Logic Circuit

Experiment 4 :NOT Gate (INVERTER)

Theory

fig13-15

Fig. 13-15NOT Gate

NOT gate usually has one output state to one input state, and the state is opposite to each other. Fig.13-15 shows NOT gate and the truth table.

Experiment Process

fig13-16

Fig. 13-16NOT Gate

fig13-17

Fig. 13-17NOT Gate Using NAND and NOR Gate

fig13-18

Fig. 13-18NOT Gate Using Transistor

1. In Circuit-4 of M13, check out the output 4b by the state of LED1 for switch S1 and record the result in table 13-6.

2. In Circuit-4 of M13, make 4g-4h terminal shorted and check out the output for the input and compare it to the output in number 1.

3. In Circuit-4 of M13, measure the output between the output terminal 4f-4j by the switch S2 of the input terminal, and compare the output value with the output in number 1.

tab1

Experiment 13-4.1 NOT Gate Circuit Experiment (In Circuit-4 of M13, compose a circuit as in fig.13-18.)

Transistor NOT Circuit

1.Connection
1.Power connection is internally connected.
2.Measuring Instrument Connection

Transistor Input/Output Voltage Measurement

Connect between 4a terminal of Circuit-4 and A+ terminal of Signal Input CH A on the front panel of Multimeter with red line, and between 4j terminal and A- terminal with black line.

Connect between 4b terminal and B+ terminal of CH B with red line, and between 4j terminal and B- terminal with black line.

2.Wiring Diagram
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3.Measurement
  1. 1In Circuit-4 of M13, use the transistor NOT circuit as in fig.13-18.

    In Circuit-4 of M13, check out the output 4b by the state of LED1 for switch S1 and record the result in table 13-6.

  2. 2Output Voltage Measurement: Choose analog input at Touch LCD panel, choose Volt & Ampere Meter tab, click voltage, dc , av at CH A and CH B and record the measured output voltage in the relevant column of table 13-6. (CH A = Transistor Input, CH 2 = Transistor Output)

    VoltAndAmpereMeter

    VoltAndAmpereMeter

  3. 3In Circuit-4 of M13, make 4g-4h terminal shorted and check out the output for the input and compare it to the output in 3. Measurement>1).
    3. In Circuit-4 of M13, measure the output between the output terminal 4f-4j by the switch S2 of the input terminal, and compare the output value with the output in 3. Measurement>1).
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Experiment Result Report

result
NOT Gate (INVERTER)
1. Experiment Result Table

Table 13-6

result_table
InputOutput
StateVoltageStateVoltage
OFF
ON
2. Review and Explanation
1) With the result in table 13-6, explain the operation of transistor NOT circuit.
2) In the result of table 13-6, explain the output voltage when the operation state of output voltage of transistor NOT is “ON”.
3. Discuss the experiment result.