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 university:courses:electronics:electronics-lab-21 [24 Jul 2017 16:08]amiclaus change amplitude value to peak-peak university:courses:electronics:electronics-lab-21 [12 Jul 2019 14:01]andreeapop Both sides previous revision Previous revision 12 Jul 2019 14:01 andreeapop 24 Jul 2017 16:08 amiclaus change amplitude value to peak-peak23 Mar 2017 16:34 dmercer [Directions:] 23 Mar 2017 16:34 dmercer [Materials:] 14 Dec 2012 21:16 dmercer [Appendix:] 29 Oct 2012 16:27 dmercer created 12 Jul 2019 14:01 andreeapop 24 Jul 2017 16:08 amiclaus change amplitude value to peak-peak23 Mar 2017 16:34 dmercer [Directions:] 23 Mar 2017 16:34 dmercer [Materials:] 14 Dec 2012 21:16 dmercer [Appendix:] 29 Oct 2012 16:27 dmercer created Line 1: Line 1: - ====== Activity ​21. CMOS LC Oscillator ====== + ====== Activity: CMOS LC Oscillator ====== ===== Objective: ===== ===== Objective: ===== Line 5: Line 5: The goal is to explore the use of the high gain inverting CMOS amplifier in a LC oscillator. The goal is to explore the use of the high gain inverting CMOS amplifier in a LC oscillator. - ====== ​21.1 High gain inverting amplifier ====== + ====== High gain inverting amplifier ====== ===== Materials: ===== ===== Materials: ===== Line 46: Line 46: Measure the slope of the output and calculate the DC gain of the amplifier as the ratio of the change in the output voltage to the change in input voltage at the center of the output swing (i.e. around 2.5V). Remember this should be a negative number because the amplifier inverts. Measure the slope of the output and calculate the DC gain of the amplifier as the ratio of the change in the output voltage to the change in input voltage at the center of the output swing (i.e. around 2.5V). Remember this should be a negative number because the amplifier inverts. - ====== ​21.2 Adding LC resonator ====== + ====== Adding LC resonator ====== On your solder-less breadboard construct the filter network shown in figure 4 below. Using the Network (Bode) analyzer tool measure the gain and phase response of the LC network. On your solder-less breadboard construct the filter network shown in figure 4 below. Using the Network (Bode) analyzer tool measure the gain and phase response of the LC network. Line 64: Line 64: Based on the frequency response of the LC network, at what frequency do you think the circuit will oscillate? Based on the frequency response of the LC network, at what frequency do you think the circuit will oscillate? - ====== ​21.3 Placing LC network in feedback of amplifier ====== + ====== Placing LC network in feedback of amplifier ====== {{ :​university:​courses:​electronics:​a21_f5.png?​500 |}} {{ :​university:​courses:​electronics:​a21_f5.png?​500 |}}