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Set up the experiment as follows:

Uncontrolled centre-tap connection M1U

This experiment investigates an M1U circuit. You should determine the following:

z Output and input current z Input and output voltages z Power components


Page 1 of 6Name: 2015_2EE_21, Date: 3/11/2015

Set the necessary parameters under Settings - Parameters - Defaults according to the following table.

Tool: Timing diagramCircuit configuration: M1U

Trigger angle: 0Multipulse: Off

Measurement:

Use the left mouse button to double click on the timing diagram

Set the following signals and then confirm by pressing OK.

z Input voltage V1

z Input current I1 z Output voltage U z Output current I



Now display the input and output voltage along with the input current in a timing diagram . Click on to start and to stop the measurement. Finally copy the timing diagram into the following blank placeholder:

Input and output signals of an M1U circuit under resistive load

What statements can you make about the voltage and current waveform at the output?

nmlkj The waveform for the output voltage and current is sinusoidal in both cases nmlkj Current and voltage are constant at the output nmlkji Each half-wave of the current or voltage is blocked out

by the rectifying action of the circuit. The result is a pulsating DC voltage nmlkj The waveform is a sine wave with purely absolute

values (negative values reflected in the time axis so that they are positive).

Correct

Check answer



.

Calculate the RMS value of the voltage and the rectified mean of the output from the peak values

Measure the active power consumed and output.

Determine the power components for the circuit

Now display the power components as vectors.

Open the Power Vectors virtual instrument . Set it to measure power consumed . Click to start and stop the measurement. Finally copy the diagram into the

following blank placeholder:

The RMS voltage is:8.8V. The rectified mean is:5.4V. Correct

Check answer

Active power consumed:1.2W. Active power output:1.1W. Correct

Check answers



Power consumed

Determine the power output in the same way



Power output



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