Homwork -1 ri-6.25Ω Find Resonance frequency, Equivalent impedance at resonance, The Q factor, The 3 dB...
In a series RLC resonance circuit, the resonance frequency f0 = 700 kHz. The resistor R = 10 Ohm. The specified bandwidth (BW) should be 10 kHz. Please calculate the quality factor (Q) and the values of inductor and capacitor.
Problem 3) Find the equivalent impedance for the network shown Zeq→ when the frequency f = 500 Hz. 3312 7100uF 30.1 mH f = 500 Hz Problem 4) Repeat the previous problem using a frequency of f = 5000 Hz. Zeq→ 332 +100 uF 30.1 mH f = 5000 Hz
(a) For the circuit of Figure 4, assuming a sinusoidal is(t) (0) Prove that the resonant frequeney is given by o- (3 marks) LC (ii) If the total admittance at resonance is 20 ms (seen by the source) with resonant frequency of wo 5000 rad/s and quality factor of Q-10, calculate the values of R L, C, the bandwidth and half-power frequencies in Hertz. (4 marks) VG and hence show (iii) Derive an expression for the driving point impedance Z(jø)...
51 For the low pass filter in figure 5 find: [2 Marks] Cutoff(Critical) frequency Output Voltage at Cut off frequency 4.7 k C 1020 V 10 F Figure 5 6 Find at resonance from figure 5: [3 Marks] a. Resonant Frequency. d. Quality factor. e. Bandwidth b. Impedance at resonance f. Current at the half power Current at resonance. c. Vs 10 v L-1mH C-10uF R-102 C L R V Figure 5
Problem 4. (25 points) For The parallel resonance circuit shown a) Find the resonance frequency fp. b) Find the voltage VC at resonance frequency. c) Find the Bandwidth BW d) Find the cutoff frequencies fl & f2 R1-10Ok2 RL-100 E-400 v
For Re-R=12 and C-1F, find the equivalent impedance magnitude as a function of frequency for the circuit below: Re R Ce How does this impedance behave at high frequencies? At low frequencies?
Problem 4 For the circuit in Fig. 3, frequency w a) Draw the impedance model of the circuit for a source b) Convert the voltage lence) and redraw the impedance model; (using Thevenin and Norton equiva- Source into a current source c) Using the results from part (b), derive the expressions to determine the resonance frequency of the circuit in terms of the circuit parameters; e) We would like to have a resonance peak gain frequency of fo equal to...
Find the total impedance of combining Zi and Z2 in the following circuit, wherein Ri = 2mH, R2 = 1 ?, L,-1 mH, and operating frequency is 100 Hz.(15 pts) 102, L R, L R2
3.11.1 Determine the -3 dB bandwidth of the filter whose frequency transfer function is: H(w) = 1/[(jw)+ 1.4(jw) + 1.5). Also, calculate the ratio of the -60 dB to -6 dB bandwidths for this filter. (This ratio is often used as a convenient measure of the selec- tivity of the filter.)
71. A superheterodyne receiver tunes at the frequency range from 25 to 50 MHz. What is the IF frequency of the receiver if the range of the local oscillator is 10 MHz to 35MHz 75. An AM transmitter uses high-level modulation. The RF power amplifier draws 12 A from 22 V supply putting out a carrier power of 140 Watts. What impedance would be seen at the modulation transformer secondary? 72. A receiver has a sensitivity of 0Suv and blocking...