Lab 5 TF EIM: Difference between revisions
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LC Resonance circuits | LC Resonance circuits | ||
=The LC cicuit= | =The LC cicuit= | ||
#Design a parallel LC resonant circuit with a resonant frequency between 50-200 kHz. | #Design a parallel LC resonant circuit with a resonant frequency between 50-200 kHz. use <math>L</math> = 10 - 100 <math>\muH</math>. | ||
#Construct the LC circuit using a non-polar capacitor | #Construct the LC circuit using a non-polar capacitor | ||
#Measure <math>\frac{V_{out}}{V_{in}}</math> as a function of frequency. | #Measure the Gain <math>\equiv \frac{V_{out}}{V_{in}}</math> as a function of frequency. | ||
#Measure the | #Measure the Gain when you insert an external resistance approximately equal to the inherent resistance of the rf choke <math>R_{L}</math>. | ||
#Compare the measured and theoretical values from the resonance frequency (<math>\omega_{L}</math>) and the Quality factor <math>Q\equiv 2 \pi \frac{W_S}{W_L}= \frac{\mbox{Energy Stored}}{\mbox{Energy Lost}}}</math> value for each case. | |||
=The LRC cicuit= | =The LRC cicuit= | ||
Revision as of 19:41, 24 October 2010
LC Resonance circuits
The LC cicuit
- Design a parallel LC resonant circuit with a resonant frequency between 50-200 kHz. use [math]\displaystyle{ L }[/math] = 10 - 100 [math]\displaystyle{ \muH }[/math].
- Construct the LC circuit using a non-polar capacitor
- Measure the Gain [math]\displaystyle{ \equiv \frac{V_{out}}{V_{in}} }[/math] as a function of frequency.
- Measure the Gain when you insert an external resistance approximately equal to the inherent resistance of the rf choke [math]\displaystyle{ R_{L} }[/math].
- Compare the measured and theoretical values from the resonance frequency ([math]\displaystyle{ \omega_{L} }[/math]) and the Quality factor [math]\displaystyle{ Q\equiv 2 \pi \frac{W_S}{W_L}= \frac{\mbox{Energy Stored}}{\mbox{Energy Lost}}} }[/math] value for each case.