Electronics Workbench (EWB)

Instruments (part a)

EWB Instruments

Multimeter

Function Generator

2 channel Oscilloscope

Bode Plotter

Frequency Counter

Word generator

4 channel Oscilloscope

Logic analyzer

Logic converter

Wattmeter

Multimeter

Display

Current (Ampere)

Voltage (Volt)

Resistance (Ohm)

Power (Decibel)

Alternating current (AC)

+ probe

- probe

Direct current (DC)

+ probe

- probe

Schematic symbol

Use the multimeter to measure AC or DC voltage or current, and resistance or decibel loss between two nodes in a circuit.

Multimeter (DC measurement)

Voltage measurement

Current measurement DC

setting

Multimeter (AC measurement)

Voltage measurement

Current measurement AC

setting

Function Generator

+ probe

- probe

Schematic symbol

Sinusoidal wave

Sawtooth wave

Square wave

+ probe

- probe

The function generator is a voltage source that supplies sine, triangular or square waves. Its frequency, amplitude, duty cycle and DC offset can be controlled.

Function Generator

Voltage measurement

Current measurement

Function generator

Wattmeter

Voltmeter

Schematic symbol

+ - Ammeter

+ -

Display (Wattage)

Power factor

The wattmeter measures power. It is used to measure the magnitude of the active power, that is, the product of the voltage difference and the current flowing through the current terminals in a circuit. The results are shown in watts. The wattmeter also displays the power factor, calculated by measuring the difference between the voltages and the current, and multiplying them together. The power factor is the cosine of the phase angle before the voltage and current.

Wattmeter

Voltage measurement

Current measurement

Oscilloscope

Channel A

Schematic symbol

Channel B

GroundTrigger

Toggle between black and white screen

Vertical cursor 1

Vertical cursor 2

Vertical cursor 1 (Readouts)Vertical cursor 2 (Readouts)Difference between cursor (Readout)

Saving in ASCII text file

The dual-channel oscilloscope displays the magnitude and frequency variations of electronic signals. It can provide a graph of the strength of one or two signals over time, or allow comparison of one waveform to another.

Oscilloscope

Measure input signal

Measure output signal

Bode plotter

Schematic symbol

Input signal

channel

Output signal

channel

A Bode magnitude plot is a graph of log magnitude versus frequency, plotted with a log-frequency axis, to show the frequency response of a linear system.A Bode phase plot is a graph of phase versus frequency, also plotted on a log-frequency axis, usually used in conjunction with the magnitude plot, to evaluate how much a frequency will be phase-shifted.

Bode plotter

Measure input signal

Measure output signal

Magnitude versus frequency

Phase versus frequency

Frequency counter

Schematic symbol

Frequency counter is used to measure signal frequency

Frequency Probe

Display

The minimum sensing voltage

Trigger level is the point that must be reached by the waveform before a reading is displayed

Display only the AC component of a signalDisplay only the DC component of a signal

The frequency counter is used to measure signal frequency.

Frequency Counter

555 timer 1 kHz configuration

Actual output

frequency

Duration of 1 cycle

Frequency Counter

555 timer 1 kHz configuration

Duration of positive pulse

Duration of negative pulse

Rise time of a single counter

Logic analyzer

Schematic symbol

Signal

Probe

External clock

Clock qualifie

r

Trigger qualifie

r

The logic analyzer displays up to 16 digital signals in a circuit. It is used for fast data acquisition of logic states and advanced timing analysis to help design large systems and carry out troubleshooting.

Logic analyzer

Probing 1st input signal

Probing 2nd input signal

Probing output signal

Logic ConverterSchematic symbol

8 input signal probe

Boolean

Truth table

1 output signal probe

The logic converter is able to perform several transformations of a circuit representation or digital signal. This is a useful tool for digital circuit analysis, but has no real-world counterpart. It can be attached to a circuit to derive the truth table or Boolean expression the circuit embodies, or to produce a circuit from a truth table or Boolean expression.

Deriving truth table from circuitConvert truth table to BooleanSimplify truth table to BooleanConvert Boolean to truth tableConvert Boolean to circuitConvert Boolean to NAND circuit

Logic Converter

Deriving truth table from circuit

Logic Converter

Converting truth table to Boolean expression

Boolean expression obtained

Logic Converter

Simplify truth table to Boolean expression

Simplified Boolean expression

Logic Converter

1st step: Type desired Boolean expression

2nd step: Converting Boolean expression to truth table

Truth table printed here!

Logic Converter

Converting Boolean expression to circuit

Circuit produced

Logic Converter

Converting Boolean expression to NAND circuit

Circuit produced