For the Schmitt trigger in Figure 15.30(a), the parameters are:
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Microelectronics: Circuit Analysis and Design
- 13:46 e 38 Subject Test Note: - You are attempting question 6 o V For a zero-time average triangular signal with frequency 200 kHz, slew rate is 5 Us Determine the peak output amplitude. (a) 3.98 V (b) 25 V (c) 7.96 V (d) 0 V Answer O A O B Oc C OD Submitarrow_forwardA boost regulator has an input voltage Vs=6V and an average output voltage Va=12V. The average output load current Ia=1A at a switching frequency of 40 kHz. If L=0.15 mH and C=220 uF. Calculate: A)The duty factor B)The ripple and the peak currents of inductor. C)the critical value for continuous voltage in mF. D)The ripple voltage of filter capacitance.arrow_forward9. Determine the fundamental period of the following signal:sin20t. a) 1/60 sec b) 1/30 sec c) 1/20 sec d) a/30 secarrow_forward
- The maximum peak-to-peak value of an AM wave is 120 V. The peak-to-peak value of the modulating signal is 20 V. Calculate the percentage of modulation 20 % 12% 5% 10% 0.0.arrow_forwardDraw a diagram for astable multivibrator using 555 timer. Find the oscillation frequency of the output signal and its duty cycle when the external capacitor is 0.01 uF, the R1 and R2 are 10 kn and 50 kn respectively. While the decoupling capacitor equal 0.1 µF. What happened to the duty cycle when R2 become 1M02?arrow_forward1. How you can read this impulse voltage: 1.2 / 50 us and at which standard? a. Durations wave front : 1.2 tr, Wave tail duration is defined as 50 m.s (as in International Standard). b. Durations wave front: 1.2 tr, Wave tail duration is defined as 50 m.s ( as in British Standard). c. Durations wave front: 1.2 tr (where tr is the transient time), Wave tail duration is de fined as 50 m.s (as in International Standard). d. All these answer are wrong. 2. The main factor in studying High voltage engineering techniques is: a. Voltage b. Cштеnt c. Electric Field d. CuIrentarrow_forward
- Q5 A given UJT with an intrinsic standoff ratio n= 0.6. If a 100µf capacitor is used to generate the timing pulses, calculate the timing resistor required to produce an .oscillation frequency of 110 Hz R Negative Pulse UJT E Va2 B2 B, R1 Positive Pulse OV 90.90 136.40 Οarrow_forwardThe boost regulator in the next figure has an input voltage, Vs9 V. The average output voltage, Va = 15 V and average load current, Ia 0.8 A. The switching frequency is 20 kHz. If L = 300 μH and C = 440 μF. Determine - (b) the ripple current of inductor, AI, (c) the peak current of inductor, 12, (d) the ripple voltage of filter capacitor, Vc, and (e) the critical values of L and C. +eL is Dm 오 + + L viole C V, M₁ VD V Load Vaarrow_forwardAn AM waveform has a maximum span of 7.5V while minimum span of 2.5V. Determine the modulation index and the transmission efficiency.arrow_forward
- The buck regulator in the next figure has an input voltage Vs = 15 V. The required average output voltage Va = 6.5 V at la = 0.5 A and the peak-to-peak output ripple voltage is 10 mV. The switching frequency is 20 kHz. The peak-to-peak ripple current of inductor is limited to 0.25 A. Determine (a) the duty cycle k, (b) the filter inductance L, O the filter capacitor C, and (d) the critical values of L and C. Q1 +eL iL + + ile io,la 10 Control Dm C Vc vo. V Loadarrow_forwardWrite the transmitted and received signals and draw the constallation for pi/4 QDPSK modulation if the min distance is 4arrow_forwardDesign (only the block diagram) an Armstrong indirectly FM modulator to generate an FM carrier with a carrier frequency of 98.1MHz and df (frequency deviation) =75kHz.A narrowband FM generator is available at a carrier frequency of 100 KHz and a (frequency deviation) df=10Hz.The stockroom has an oscillator with an adjustable frequency in the range of 10 to 11MHz.There are plenty of Frequency multipliers.arrow_forward
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