Lab 5 TF EIM

LC Resonance circuits

The LC cicuit

1. Design a parallel LC resonant circuit with a resonant frequency between 50-200 kHz. use $L$ = 10 - 100 $\mu H$, R = 1k $\Omega$ (Note $R_L$ is the inherent resistance of the inductor).
2. Construct the LC circuit using a non-polar capacitor
3. Measure the Gain $\equiv \frac{V_{out}}{V_{in}}$ as a function of frequency when r=0. (20 pnts)
4. Measure the Gain when an external resistance (r) approximately equals to the inherent resistance of the rf choke $r \approx R_{L}$. (20 pnts)
5. Compare the measured and theoretical values of the resonance frequency ($\omega_{L}$) (10 pnts)

Questions

1. Determine the value of $R$ needed to have $V_{out} \approx V_{in}$ at resonance. (20 pnts)

The RLC cicuit

1. Design and construct a series LRC circuit.
2. Measure and Graph the Gain as a function of the oscillating input voltage frequency. (20 pnts)

Questions

1. What is the current $I$ at resonance? (5 pnts)
2. What is the current as $\nu \rightarrow \infty$? (5 pnts)

Forest_Electronic_Instrumentation_and_Measurement