This week we tested the circuits with L, pi, and LCC circuits with given load accept the T circuits , all the step was as the same as we did before, but the load was changed to a more complex circuits.
the model load
according the calculate result, the total load value approx 1 k ohm, the bandwidth is the same as last week which is one tenth of the chosen centro frequency. we change the load to 1K ohm and rebuild circuits.
we have two problems, one of them is because we don`t have proper value of the capacitor, so we add different value of capacitors to replace. Another unsolved question is that in the T network, the value of inductance was too big and there is no approx component in lab, so we can not build this circuit.
In the morning, we wait the tutor come to tell us the load circuits then calculate some values for capacitors and inductance in circuits. When got the load circuits, we talk about how to deal with the imagine part. finally we decided ignore the imagine part because when compared to the real part it influence can be ignored.
in the afternoon, we build the pi, LCC and L circuits, then test the voltage with the model load.
L high pass circuit.
L high pass overview.
L low pass circuit on breadboard
Testing the L low pass circuit
pi high pas circuits on breadboard
Testing pi high pass network .
pi low pass circuit on breadboard
testing pi low pass network.
LCC circuit on breadboard
testing LCC circuit.
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