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Example Analyze the response of a simple op-amp comparator and Schmitt Trigger of Figure 1 with...
Design 1. Design a non-inverting Schmitt Trigger with switching points of VHL 0V and VH 5V...
Design 1. Design a non-inverting Schmitt Trigger with switching points of VHL 0V and VH 5V 2. Design an op-amp integrator that uses no more than 1mA of input current and changes its output by 5V in 10usec when driven by the Schmitt Trigger designed in (1) When the integrator is connected to the Schmitt Trigger in the feedback arrangement below it will produce a relaxation oscillator that outputs a 5V triangle wave with a frequency of 50kHz. +9V C1...
Review questions. 22 Comparators and the Schmitt Trigger Reading: Floyd and Buchla, Analog Fundamentals: A Systems...
Review questions.
22 Comparators and the Schmitt Trigger Reading: Floyd and Buchla, Analog Fundamentals: A Systems Approach, Section 8-1 Objectives: After performing this experiment, you will be able to: 1. 2. Compare the input and output waveforms for comparator and Schmitt trigger circuits. Use an oscilloscope to plot the transfer curve for a comparator circuit, including one with hysteresis truct and test a relaxation oscillator using a Schmitt trigger. Summary of Theory: A comparator is a switching device that produces...
8.) In the OP amp circuit shown in Figure 8 , determine the value of resistor...
8.) In the OP amp circuit shown in Figure 8 , determine the
value of resistor R2 needed to establish an input trip point
voltage of 6.75 Volts ( i.e. when input signal voltage V in exceeds
6.75 V the OP amp’s output voltage changes state ) . ( 60 pts )
R2 = _______________
If the OP AMP in Figure 8 was biased by DC voltages of + / - 15
Volts , and the value of resistor R2...
For the Op Amp circuit in Fig. 2.1. Infer the expression of Yout () / vin...
For the Op Amp circuit in Fig. 2.1. Infer the expression of Yout () / vin (s). (5) R2 R w 200 K2 RS R www + Vina(s) 40 KR 40 ΚΩ R4 w 50 KS2 50 ΚΩ R + V out in out 1 Fig. 2.1. Fig. 2.2 *For the Op Amp in Fig. 2.2. Evaluate the Av. (5) *Recommend a generalized Op Amp amplifier which processes sin wave into a cosine wave (1-5), a square wave into a...
Inverting Amplifier Figure 4.2 shows the fundamental configuration of Op-Amp in which it is used as...
Inverting Amplifier Figure 4.2 shows the fundamental configuration of Op-Amp in which it is used as an inverting amplifier. In this configuration the ratio, R2/R1 completely controls the effective gain of the amplifier and it can be verified that the output voltage is equal to Vo = - (R2/R1)Vin R2 100K Q-10V R1 Vinow 20K 1 2 7 V Vo 3 -10v Figure 4.2 Part 1 - Inverting Amp: Procedure 1. Construct the circuit of figure 4.2 using Op-Amp IC...
Questions 4-20. Questions 4-20. QUESTION 4 the output becomes The longer a signal is applied to...
Questions 4-20.
Questions 4-20.
QUESTION 4 the output becomes The longer a signal is applied to the input of an integrator op amp, the a smaller b. larger QUESTION 5 the output becomes. The faster the voltage applied to the input of a differentiator changes, the a smaller . b. larger QUESTION 6 voltage than for a negative-going signal. A Schmitt trigger switching threshold for a positive-going input signal is at a a lesser . b.greater QUESTION 7 If a...
Question 3 (Marks: 14) Regarding the following Op-Amp circuit in figure 3: 80 kΩ 80 kΩ...
Question 3 (Marks: 14) Regarding the following Op-Amp circuit in figure 3: 80 kΩ 80 kΩ 20 ΚΩ 40 kΩ 1.2V 20 kg 2.8V Figure 3 Q.3.1 Define the different stages of the Op-Amp circuit. What does each Op-Amp do? Q.3.2 Calculate the output voltage Vo (6) Q.3.3 (4) How would you modify the circuit to double the output voltage V.? You cannot change the input voltages. Give the method and value of component/s changed. (Your answer needs to provide...
(a) Design a inverting Schmitt trigger circuit to be used as a zero crossing detector with transition voltages about ±25...
(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...
ECE 202- Experiment 3-PreLab Homework NTROD TION TOTHE INTEG IRO T OP AMP VOLTAGE COMPARATOR 1....
ECE 202- Experiment 3-PreLab Homework NTROD TION TOTHE INTEG IRO T OP AMP VOLTAGE COMPARATOR 1. Op Amp functions in two different modes, depending on the way it is connected in the circuit a) If there is no return loop, t is used to compare values of two input terminals (or as Explain how vo changes depending on the values of vi and v Vo . what are max and/or min values for v and vo? 2·The circuit shown below...
a)Which LED will be turned on when vi = 1V? Which LED will be turned on...
a)Which LED will be turned on when vi = 1V? Which LED will be
turned on when vi=-1V?
b) Write an equation for v1 as a function of the pot setting ?.
Assume ? = 0 corresponds to the slider being all the way up.
c) What do you expect the LEDs to do for a pot setting of ?
= 0.4? How about ? = 0.5? How about ? =
0.6?
d) What is the threshold ? for the Schmitt trigger...
Design 1. Design a non-inverting Schmitt Trigger with switching points of VHL 0V and VH 5V 2. Design an op-amp integrator that uses no more than 1mA of input current and changes its output by 5V in 10usec when driven by the Schmitt Trigger designed in (1) When the integrator is connected to the Schmitt Trigger in the feedback arrangement below it will produce a relaxation oscillator that outputs a 5V triangle wave with a frequency of 50kHz. +9V C1...
Review questions.
22 Comparators and the Schmitt Trigger Reading: Floyd and Buchla, Analog Fundamentals: A Systems Approach, Section 8-1 Objectives: After performing this experiment, you will be able to: 1. 2. Compare the input and output waveforms for comparator and Schmitt trigger circuits. Use an oscilloscope to plot the transfer curve for a comparator circuit, including one with hysteresis truct and test a relaxation oscillator using a Schmitt trigger. Summary of Theory: A comparator is a switching device that produces...
8.) In the OP amp circuit shown in Figure 8 , determine the
value of resistor R2 needed to establish an input trip point
voltage of 6.75 Volts ( i.e. when input signal voltage V in exceeds
6.75 V the OP amp’s output voltage changes state ) . ( 60 pts )
R2 = _______________
If the OP AMP in Figure 8 was biased by DC voltages of + / - 15
Volts , and the value of resistor R2...
For the Op Amp circuit in Fig. 2.1. Infer the expression of Yout () / vin (s). (5) R2 R w 200 K2 RS R www + Vina(s) 40 KR 40 ΚΩ R4 w 50 KS2 50 ΚΩ R + V out in out 1 Fig. 2.1. Fig. 2.2 *For the Op Amp in Fig. 2.2. Evaluate the Av. (5) *Recommend a generalized Op Amp amplifier which processes sin wave into a cosine wave (1-5), a square wave into a...
Inverting Amplifier Figure 4.2 shows the fundamental configuration of Op-Amp in which it is used as an inverting amplifier. In this configuration the ratio, R2/R1 completely controls the effective gain of the amplifier and it can be verified that the output voltage is equal to Vo = - (R2/R1)Vin R2 100K Q-10V R1 Vinow 20K 1 2 7 V Vo 3 -10v Figure 4.2 Part 1 - Inverting Amp: Procedure 1. Construct the circuit of figure 4.2 using Op-Amp IC...
Questions 4-20.
Questions 4-20.
QUESTION 4 the output becomes The longer a signal is applied to the input of an integrator op amp, the a smaller b. larger QUESTION 5 the output becomes. The faster the voltage applied to the input of a differentiator changes, the a smaller . b. larger QUESTION 6 voltage than for a negative-going signal. A Schmitt trigger switching threshold for a positive-going input signal is at a a lesser . b.greater QUESTION 7 If a...
Question 3 (Marks: 14) Regarding the following Op-Amp circuit in figure 3: 80 kΩ 80 kΩ 20 ΚΩ 40 kΩ 1.2V 20 kg 2.8V Figure 3 Q.3.1 Define the different stages of the Op-Amp circuit. What does each Op-Amp do? Q.3.2 Calculate the output voltage Vo (6) Q.3.3 (4) How would you modify the circuit to double the output voltage V.? You cannot change the input voltages. Give the method and value of component/s changed. (Your answer needs to provide...
(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...
ECE 202- Experiment 3-PreLab Homework NTROD TION TOTHE INTEG IRO T OP AMP VOLTAGE COMPARATOR 1. Op Amp functions in two different modes, depending on the way it is connected in the circuit a) If there is no return loop, t is used to compare values of two input terminals (or as Explain how vo changes depending on the values of vi and v Vo . what are max and/or min values for v and vo? 2·The circuit shown below...
a)Which LED will be turned on when vi = 1V? Which LED will be
turned on when vi=-1V?
b) Write an equation for v1 as a function of the pot setting ?.
Assume ? = 0 corresponds to the slider being all the way up.
c) What do you expect the LEDs to do for a pot setting of ?
= 0.4? How about ? = 0.5? How about ? =
0.6?
d) What is the threshold ? for the Schmitt trigger...
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