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| university:courses:electronics:electronics-lab-ce-loop-gain [25 Jun 2020 22:07] – external edit | university:courses:electronics:electronics-lab-ce-loop-gain [26 Jan 2021 15:58] (current) – [Directions:] Doug Mercer |
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| ====Directions:==== | ====Directions:==== |
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| Build the measurement setup as shown in figure 5 below. If you are using the HPH1-1400L transformer for T<sub>1</sub> you should connect three of the 6 windings in series for the primary and the remaining three windings in series for the secondary ( see this [[university:labs:m2k:comms_lab_transformers|activity on transformers]] for more details ). | Build the measurement setup as shown in figure 5 below. If you are using the HPH1-1400L transformer for T<sub>1</sub> you should connect three of the 6 windings in series for the primary and the remaining three windings in series for the secondary ( see this [[university:courses:alm1k:alm-lab-transformers|Transformers]] for more details ). |
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| There are three resistors, R<sub>C</sub>, R<sub>B</sub>, R<sub>E</sub> and one capacitor, C<sub>M</sub>, that determine the loop gain of this circuit. You will be running frequency sweeps with the network analyzer testing various combinations of component values. | There are three resistors, R<sub>C</sub>, R<sub>B</sub>, R<sub>E</sub> and one capacitor, C<sub>M</sub>, that determine the loop gain of this circuit. You will be running frequency sweeps with the network analyzer testing various combinations of component values. |
