A DC amplifier having a single-pole response with pole frequency 39 Hz and unity-gain frequency of...
A DC amplifier having a single-pole response with pole frequency 39 Hz and unity-gain frequency of 3.25 MHz is operated in a loop whose frequency-independent feedback factor is 0.04.
1) Low Frequency Gain?
2) 3-dB Frequency?
3) Unity-gain frequency of closed-loop amplifier?
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A DC amplifier having a single-pole response with pole frequency
39 Hz and unity-gain frequency of...
Sketch the Bode plots for a stable three-pole amplifier with dc gain 10^5 whose poles have magnit...
Sketch the Bode plots for a stable three-pole amplifier with dc
gain 10^5 whose poles have magnitudes 0.1 MHz, 1 MHz and 10 MHz.
Find the gain margin and phase margin of the amplifier if it is
connected in a feedback loop with (a) unity feedback factor; (b)
feedback factor 5.623 x 10^-5; (c) closed-loop dc gain 50 dB. In
each case indicate whether the closed-loop amplifier is stable or
unstable. What is the minimum stable closed-loop dc gain of...
2.103 An inverting amplifier with nominal gain of-50 VIV employs an op amp having a dc...
2.103 An inverting amplifier with nominal gain of-50 VIV employs an op amp having a dc gain of 10 and a unity-gain frequency of 10 Hz. What is the 3-dB frequency fd of the closed-loop amplifier? What is its gain at 0.1 fsd andat 10fsdB?
Problem Consider a voltage amplifier having a frequency response of the low-pass STC 1ype with a de gain of 60 dB a...
Problem Consider a voltage amplifier having a frequency response of the low-pass STC 1ype with a de gain of 60 dB and a 3-dB frequency of 1000 Hz Find the gain in dB at f- 10 Hz, 10kHz, 100 kHz, and 1 MHz Problem For the circuit shown below first, evalusteand the coresponding comer froquency. Second evalmt and the corresponding comer froquency. At the end caloulate overall transfer function T(w)= and reurite it in the standard fom ( and draw...
And b. slew lall unity-gain frequency amplifier. Specifications require that the gain vary no mor...
4-47
ans:
a. 11.77Mhz
b. 40.21V/ms
c. yes
and b. slew lall unity-gain frequency amplifier. Specifications require that the gain vary no more than 2 dB from near The peak input signal is estimated as 0.8 V. Determine the minimum values of frequency and b. slew rate for the op-amp selected. c. Would the LM1182181 4-47. An inverting amplifier with a gain of -8 is to be designed for use in a s de to 1 MHz. a. unity-gain op-amp...
3) Opamp Frequency Response An opamp comprises 2 voltage gain stages; cach yields a gain of 500. The 3 dB roll- off frequencies of the 2 gain stages are at 40 Hz and 10 MHz, respectively a) What is t...
3) Opamp Frequency Response An opamp comprises 2 voltage gain stages; cach yields a gain of 500. The 3 dB roll- off frequencies of the 2 gain stages are at 40 Hz and 10 MHz, respectively a) What is the approximate value of the unity-gain frequency FuG of this opamp? (Hint: consider the asymptotic Bode plot).
3) Opamp Frequency Response An opamp comprises 2 voltage gain stages; cach yields a gain of 500. The 3 dB roll- off frequencies of...
JU Oct 2017 5 Minute Test Your Understanding Quiz A compensated Op-Amp has an open-loop gain...
JU Oct 2017 5 Minute Test Your Understanding Quiz A compensated Op-Amp has an open-loop gain of 10' and a dominant pole of 8 Hz. The Op-Amp is used in a closed-loop single stage amplifier which has a low-frequency gain of 50. What is the -3 dB bandwidth of the closed-loop amplifier? Note: I know of at least two ways to solve this problem
Quiz 2 A BJT amplifier has low-frequency cutoffs at 2 Hz, 400 Hz, and 800 Hz...
Quiz 2 A BJT amplifier has low-frequency cutoffs at 2 Hz, 400 Hz, and 800 Hz 1. How many dB/decade are lost between 2 Hz and 400 Hz? 2. What frequency is two decades below 800 Hz? 3. What frequency is three octaves above 2 Hz? 4. If the mid-band gain of the amplifier is 1, what is the gain in dB at 20 Hz? 5. If the mid-band gain of the amplifier is 1, what is the gain in...
An amplifier is characterised by a 3 pole transfer function of the form where Ao - 100,000, f1( 1...
An amplifier is characterised by a 3 pole transfer function of the form where Ao - 100,000, f1( 1/2) 1e4 Hz, f2 1e6 Hz, f3 -100e6 Hz By drawing a Bode plot for the amplifier loop gain (or otherwise), determine the phase margin for the amplifier when used with a feedback factor, B-0.5
An amplifier is characterised by a 3 pole transfer function of the form where Ao - 100,000, f1( 1/2) 1e4 Hz, f2 1e6 Hz, f3 -100e6 Hz...
Q3(a) Explain TWO (2) differences between system with positive feedback and system with negative feedback. (b)...
Q3(a) Explain TWO (2) differences between system with positive feedback and system with negative feedback. (b) With the aid of a block diagram, derive the closed-loop gain, Af of a negative feedback system. (c) An amplifier with a negative feedback has a midband gain of 47.96 dB and low cutoff frequency of 75 Hz. The feedback network of the system has a feedback factor (B) of 0.0022. (1) Determine the midband gain and the low cutoff frequency if the amplifier...
5) Design a one-pole, one-zero passive filter to have a low-frequency gain of -32 dB, a high-freq...
please show all steps and matlab plot ,
5) Design a one-pole, one-zero passive filter to have a low-frequency gain of -32 dB, a high-frequency gain of 0 dB, and a cutoff frequency of 2,000 Hz. Specify the circuit and all component values. Use Matlab to plot the magnitude and phase frequency response for your filter.
5) Design a one-pole, one-zero passive filter to have a low-frequency gain of -32 dB, a high-frequency gain of 0 dB, and a cutoff...
Sketch the Bode plots for a stable three-pole amplifier with dc
gain 10^5 whose poles have magnitudes 0.1 MHz, 1 MHz and 10 MHz.
Find the gain margin and phase margin of the amplifier if it is
connected in a feedback loop with (a) unity feedback factor; (b)
feedback factor 5.623 x 10^-5; (c) closed-loop dc gain 50 dB. In
each case indicate whether the closed-loop amplifier is stable or
unstable. What is the minimum stable closed-loop dc gain of...
2.103 An inverting amplifier with nominal gain of-50 VIV employs an op amp having a dc gain of 10 and a unity-gain frequency of 10 Hz. What is the 3-dB frequency fd of the closed-loop amplifier? What is its gain at 0.1 fsd andat 10fsdB?
Problem Consider a voltage amplifier having a frequency response of the low-pass STC 1ype with a de gain of 60 dB and a 3-dB frequency of 1000 Hz Find the gain in dB at f- 10 Hz, 10kHz, 100 kHz, and 1 MHz Problem For the circuit shown below first, evalusteand the coresponding comer froquency. Second evalmt and the corresponding comer froquency. At the end caloulate overall transfer function T(w)= and reurite it in the standard fom ( and draw...
4-47
ans:
a. 11.77Mhz
b. 40.21V/ms
c. yes
and b. slew lall unity-gain frequency amplifier. Specifications require that the gain vary no more than 2 dB from near The peak input signal is estimated as 0.8 V. Determine the minimum values of frequency and b. slew rate for the op-amp selected. c. Would the LM1182181 4-47. An inverting amplifier with a gain of -8 is to be designed for use in a s de to 1 MHz. a. unity-gain op-amp...
3) Opamp Frequency Response An opamp comprises 2 voltage gain stages; cach yields a gain of 500. The 3 dB roll- off frequencies of the 2 gain stages are at 40 Hz and 10 MHz, respectively a) What is the approximate value of the unity-gain frequency FuG of this opamp? (Hint: consider the asymptotic Bode plot).
3) Opamp Frequency Response An opamp comprises 2 voltage gain stages; cach yields a gain of 500. The 3 dB roll- off frequencies of...
JU Oct 2017 5 Minute Test Your Understanding Quiz A compensated Op-Amp has an open-loop gain of 10' and a dominant pole of 8 Hz. The Op-Amp is used in a closed-loop single stage amplifier which has a low-frequency gain of 50. What is the -3 dB bandwidth of the closed-loop amplifier? Note: I know of at least two ways to solve this problem
Quiz 2 A BJT amplifier has low-frequency cutoffs at 2 Hz, 400 Hz, and 800 Hz 1. How many dB/decade are lost between 2 Hz and 400 Hz? 2. What frequency is two decades below 800 Hz? 3. What frequency is three octaves above 2 Hz? 4. If the mid-band gain of the amplifier is 1, what is the gain in dB at 20 Hz? 5. If the mid-band gain of the amplifier is 1, what is the gain in...
An amplifier is characterised by a 3 pole transfer function of the form where Ao - 100,000, f1( 1/2) 1e4 Hz, f2 1e6 Hz, f3 -100e6 Hz By drawing a Bode plot for the amplifier loop gain (or otherwise), determine the phase margin for the amplifier when used with a feedback factor, B-0.5
An amplifier is characterised by a 3 pole transfer function of the form where Ao - 100,000, f1( 1/2) 1e4 Hz, f2 1e6 Hz, f3 -100e6 Hz...
Q3(a) Explain TWO (2) differences between system with positive feedback and system with negative feedback. (b) With the aid of a block diagram, derive the closed-loop gain, Af of a negative feedback system. (c) An amplifier with a negative feedback has a midband gain of 47.96 dB and low cutoff frequency of 75 Hz. The feedback network of the system has a feedback factor (B) of 0.0022. (1) Determine the midband gain and the low cutoff frequency if the amplifier...
please show all steps and matlab plot ,
5) Design a one-pole, one-zero passive filter to have a low-frequency gain of -32 dB, a high-frequency gain of 0 dB, and a cutoff frequency of 2,000 Hz. Specify the circuit and all component values. Use Matlab to plot the magnitude and phase frequency response for your filter.
5) Design a one-pole, one-zero passive filter to have a low-frequency gain of -32 dB, a high-frequency gain of 0 dB, and a cutoff...
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