8.15 For the circuit in Fig. P18.15, find Ls), Lijo), the frequency for zero loop phase, and R/R,...
2. (Textbook: 18.15) For the circuit in Fig. 1 (textbook: Fig. P18.15), find L(s), L(jw), the frequency for zero loop phase, and R2/R; for oscillation. Assume the op amp to be ideal. RI R2 w + R R = = Fig. 1
the circuit shown, 1. Find the transfer function H(jw) 2. If R R2 12 and L1mH, plot the frequency response (both the gain and the phase shift) of the circuit; 3. Identify the type of filter the circuit is, and state the break (cut off) frequency. R1 v(t)Vcos(ut) L1 R2 Figure 1
the circuit shown, 1. Find the transfer function H(jw) 2. If R R2 12 and L1mH, plot the frequency response (both the gain and the phase shift) of...
5. (a) Express the loop gain of the following feedback system. (Spts) (b) What is the condition for the oscillation? (Spts) (c) Determine the oscillation frequency and R2 for the phase-shift oscillator C-0.1uF and R-1kohm. (5pts) R2 (vI)
5. (a) Express the loop gain of the following feedback system. (Spts) (b) What is the condition for the oscillation? (Spts) (c) Determine the oscillation frequency and R2 for the phase-shift oscillator C-0.1uF and R-1kohm. (5pts) R2 (vI)
find the voltages V, V, and V, in the circuit of Fig. 1, and the currents 1,, l, and I, in the circuit of Fig. 2. + V- R1, 10K2 + R2, 27KV2 1 R3, 10K w - V + Figure 1 W R1, 10K R2, 27K12 R3, 10K<< Figure 2
R2 The oscillator circuit at right consists of a non-inverting amp with an RLC tank circuit. Determine the loop gain function for the circuit. Use the loop gain function to determine the expected frequency of oscillation and the minimum required gain for the amp to induce oscillation Calculate values for the oscillation frequency and minimum gain (i.e. minimum value of Ra/R) if RT 1 kQ, R4 = 200 Ω, L = 0.05 mH, and C=0.5 μF ao = -; R2...
(a) Design a inverting Schmitt trigger circuit
to be used as a zero crossing detector with transition voltages
about ±25 mV. Assume the saturation voltages for the op–amp are ±13
V. Draw the voltage transfer characteristic (VTC), i.e., vout vs.
vin.
(b) Design an astable multivibrator to produce
a square signal with a frequency of 1 kHz using C=0.01 µF, R1 = 30
kΩ, and R2 = 20 kΩ. Sketch the circuit waveforms (vo, v +, and v −)
assuming...
Can you solve this exercise?
I) 20pts Given the following circuit oscillator. Assume an ideal Op Amp. R1 Vo Cl Vf R2 C2 R' I) a-What is the nature of this oscillator b- Identify on the circuit the amplifier circuit and the feedback circuit. 2) a- Express the gain of the amplifier A -Vo/Vf b- Express the feedback fraction B Vf/Vo -e-Find and draw the modulus and phase angle of B in terms of ω 3) a- Write the oscillation...
Please explain key steps to solve without using Laplace
Transformations.
7.45 At what angular frequency w is the current i(t) in the circuit of Fig. P7.45 in-phase with the source voltage us(t)? i(I) 108.33 F 50Ω 0.2 H 0.2 m 0.2 mF Figure P7.45: Circuit for Problem 7.45.
7.45 At what angular frequency w is the current i(t) in the circuit of Fig. P7.45 in-phase with the source voltage us(t)? i(I) 108.33 F 50Ω 0.2 H 0.2 m 0.2 mF...
Problem 8.15 only please
8.15 The resistor in the circuit of Fig. P8.14 is increased from 100 to 125 N. Find v(t) for t 0. PSPICE 8.14 The two switches in the circuit seen in Fig. P8.14 operate synchronously. When switch 1 is in position a, switch 2 is in position d. When switch 1 move to position b, switch 2 moves to position c. Switch 1 has been in position a for a long time. At t = 0,...
752) See Figure 752. D-4. The Bode gain and phase plots for a RC circuit are phase (deg), and frequency B. Also find the other shown in the fig. Determine gain (dB), (rad/sec) for the points labeled A and exponents. Answers: GdBA, phA, wA, GdBB, phB,wB,C, E,F. ans:9 Bode Gain and Phase Plots Gain in dB 6 -10 12.64 10 Frequency in rad/sec 10 10 Phase in deg 765 40 10 F 4764 Frequency in rad/sec Figure 752 10 10...