lab 1

b) Use the ALU 74181 in the figure below and the tables (one is enough; second maybe, need to check the new kit) to implement : A + B, A – B, A. B. (MSB) (LSB) 10 (MSB) F3 F2 F1 FO S3 Cn+4 16 s2 20 U14 15 S1 14 so A3 A2 A1 AO B3 B2 B1 B0 M Cn 24 23 22 21 28 27 T26 25 (LSB) (MSB) (LSB)(MSB) (LSB) And given that under M = 1 the circuit performs the following arithmetic and logic functions according to Table 11.1. Input selection S3 Output M-H S2 SI Cn=L. F3 F2 F1 FO A 1 -A В -B A&B AxB 1 A'B 1 Ax(-B) (-A)xB (-A)x(-B) 1 1 ACTIVE HIGH DATA M-L: ARITHMETIC OPERATIONS SELECTION M-H LOGIC s3 s2 s1 so Ino carry) (with carry) F-A PLUS 1 F- LA + B) PLUS 1 F- (A + BI PLUS 1 FUNCTIONS L L F-A F-A+B F-AB F-A H FA+B F-A+T F- MINUS 1 12s COMPL) F-A PLUS AB F- IA + BI PLUS AB L L L L F-0 F-ZERO F- AB F-A PLUS AB PLUS 1 F- (A + BI PLUS AB PLUS 1 L L L H L F-AOB F- AB L L F-A MINUS B MINUS 1 F-A MINUS B F- AB MINUS 1 F- A F-A PLUS AB PLUS1 F-A PLUS B PLUS 1 F- IA + B PLUS AB PLUS 1 L H L F-A PLUS AB…

Q2) A controlled full-wave bridge rectifier has a source of 120 V rms at 60 Hz, an RL load where R = 102 and L= 100 mH. The delay angle a = 60°. (a) Verify that the load current is continuous. (b) Determine the dc (average) component of the current. (c) Determine the power absorbed by the load.

Provide a complete solution 1.) A full-wave rectifier (operating from a 60-Hz supply) drives a capacitor-filter circuit (C = 100 uF), which develops 12 V dc when connected to a 2.5-kiloOhms  load. Calculate the output voltage ripple. (answer= 0.12 V rms) 2.)A full-wave rectifier operating from the 60-Hz ac supply produces a 20-V peak rectified voltage. If a 200-uF capacitor is used, calculate the ripple at a load of 120mA

Question 1 A controlled full-wave bridge rectifier as shown in the Figure; has a source of (120 V rms) at 60 Hz, with RL load where (R = 10 and L = 100 mH). The delay angle is 60 degree and L is larger find: (a) Verify that the load current is continuous. (b) Determine the DC (average) and the RMS of the current. (c) Determine the power absorbed from source by the load and the PF

Q1. find beta ? Q2. Find S ? Q3. Find S' ? Q4. Find S'' , using T1 as the temperature at which the parameter values are specified and beta( T2 ) as 20% more than beta( T1 )? Q5. Determine the net change in IC if a change in operating conditions results in Ico increasing from 0.3 micro A to 10 micro A, VBE drops from 0.7 V to 0.6 V, and beta increases 20%.

A voltage regulator is a device that: Maintains a fixed DC voltage. O Maintains a fixed AC voltage. O Maintains a fixed DC current. O Maintains a fixed AC current.

V1 Si T1 120 Vrms 60 Hz R1 S2.5kO 4:5 Determine the following using 2nd approximation a) VDC b) IDC c) VLPK d) ILPK e) VLRMS f) ILRMS

In a phase controlled full wave rectifier, the source voltage is 50 VRMS sinusoidal, the source frequency is 60 Hz and the load is 20 ohms. Since the delay angle in the circuit is 20 °, which of the following is the value of the RMS load voltage? a) 99.54 V   b) 49.77 V   c) 70.38 V   d) 35.19 V   e) 23.46 V

A single-phase semiconverter bridge rectifier operating at a delay angle a and connected to highly inductive load such that the load current (Idc) is continuous and ripple-free. Sketch the relevant waveforms during the development of your answer: (a) Prove that the rms value of the input current of the rectifier is given by α Iin= ldc 1-= TT

A single-phase full-wave uncontrolled bridge rectifier is supplying a highly inductive load (L/R ratio is very large), the load current is assumed to be smooth and ripple-free. If the supply voltage is 220V, 50 Hz, and the inductor load resistance R-22 02, Calculate: (a) The average output voltage Vde and current Ide (b) The rms value of the output voltage Voms and current lors (c) The rms value of the diode current Ipms and the PRV of each diode

For a PMDC, you are given the following data: Vt=136 V, N2=1210 rev/min, T2=0.63 Nm, la=1.7 A, Ra=9.6 ohm. Calculate the following to four significant figures. Calculate the open circuit armature emf when the armature rotates at 1210 rev/min. Calculate the generated emf constant Km. Calculate the electrical damping constant De Calculate the mechanical Damping Constant Dm.

03 Determine operation point of the BJT in figure shown below. Assume B = 200. Rc 330 N RB Vcc 20 V 47 kN VBB 10 V Pie 1slami Cncersity The

(a) Draw the state transition table and the state diagram for the circuit shown in Figure Q1(a). Is this a Moore or Mealy machine? Please justify your answer. JA QA X Yo Y₁ ΚΑ QA' H €1 JB QB KB QB¹ Yo Clock Figure Q1(a)

A half-wave rectifier circuit has an input voltage of 60V for the entire swing of the input signal from the secondary winding of the transformer. If the load resistance is 900 and a shunt capacitor is connected therein: 1. Draw the circuit 2. Solve the following unknown values. a. The peak voltage V b. the average output voltage Volave) c. the average load current lolavel, d. the rms load voltage Volcms), e. the rms load current loma) f. the ripple factor RF of the output voltage, g. the rms ripple voltage Vrirms) h. the average diode current ID(ave) i. the rms diode current Ipicms), j. the peak inverse voltage PIV of the diode, k. the average output power Polac 1. the DC output power Po(de) m.the frequency fr of the output ripple voltage, n. the input power factor PF.

For the half-wave controlled rectifier shown, the thyristor is fired at an angle of 35° (firing angle). Assume the input source to be 10sin(5000лt) V and R = 252. Derive the average and RMS expressions of the output voltage and calculate their values. Assume ideal thyristor. + VL- R www T₁

9. The intermediate lead wire has no influence on the thermocouple resulting voltage as long as the two new junctions has the same temperature. o True o False 10. An ultrasonic sensor with a range of 0 to 10 m is used to measure distance in mobile robot, the actual distance measured by a ruler is 7.2 m while the ultrasonic reading is 7.25 m. Calculate the accuracy and relative error of the sensor.

Three phase full wave bridge uncontrolled rectifier Va D1 D3 D5 Vb 1.5ko Vc D4 D6 D2 Fig.(1) Discussion: 1) Discuss clearly the operation of three phase full wave rectifier circuit. 2) Compare between three phase half wave rectifier and full wave rectifier. 3) Derive a formula for de and rms load voltage.

Q/3/A three phase controlled bridge rectifier is operated from a three phase Y- connected to a 250V, 50HZ supply. The rectifier is suppling a pure resistive load R=2002. Determine i) The required firing angle if average output voltage is 35% of the maximum output voltage ii)the average and r.m.s values of the load current ? iii) The average and r.m.s values of thyristor current

Consider the full-wave rectifier circuit below. RL = 10 kQ, Vy= 0.7V, the input voltage N₁ V₁ = 120sin(2 60t) V(rms). The transformer turns ratio = 20, where N₁ is the number of N₂ turns in the primary and N₂ is the number of turns in each of the secondary winding. a) Plot Vs and Vo on the same graph for two periods, assuming there is no capacitor (C = 0). b) Determine the capacitor value so that the ripple voltage is limited to 1V. Plot the output voltage on the graph from part a) c) Indicate on the graph where diode D₂ has the maximum reverse bias and determine Peak Inverse Voltage (PIV). VI Vs Vs D1 KH KH D2 с RL VO

A. Determine V1 without C B. Determine V1 and VR with C C. From aB Determine V2, IL, PD D. From B determine the efficiency of the regulator (OUR SUBJECT IS INDUSTRIAL ELECTRONIC)

A 60 Hz sinusoidal voltage with an RMS value of 240 V is applied to a single-phase half-wave SCR rectifier. The firing of SCR is delayed by 30 degrees. The RMS voltage at the output of the rectifier would be: O A. None of the other choices are correct O B. 120 O C. 156 V O D. 167 V O E. 281 V

2. A full wave rectifier is used to convert 400 Hz ac todc Design a full-wave rectifier power supply that will deliver a dc outpuvoltages 15V and the load current is 1A. RSIT

A transformer converts the 110-V, 60-Hz line voltage peak of 45 V. A half-wave rectifier follows the transformer to supply the power to the laptop computer modeled by a resistor of 0.4360. Determine the minimum value of the filter capacitor that maintains the ripple below 0.1 V. Assume Voon - 0.8V. Select one: O a. 141 F O b. None of these O c. 3.41F O d. 241F

A 3 phase fully controlled rectifier has a 3 phase line to line supply voltage of 410 V rms at 50 Hz for 12 ohm and 1 H load. If the firing angle a = 50, then the average output voltage is V. By comparing the performance of DC -DC chopper with controlled rectifier circuit which one of the following statement is wrong ? a. Efficiency is better in chopper circuit b. Regenerative braking process is very slow in chopper circuit O . small filters are required in chopper circuit O d. Switching frequency is responsible for output ripples in chopper circuit

Q3 Determine operation point of the BJT in figure shown below. Assume B = 200. RC 330 N RB Vcc 20 V 47 kN VBB 10 V The

3. A firing angle controlled triac is feeding a R-L load with L=16 mH and R=12 ohm.The triac input voltage is 220 V rms and 50 Hz. a) Calculate the minimum firing angle at which triac can be fired. b) If firing angle is 27 degress find the angle B at which zero current occurs. c) Find the current 5 msec after firing.

1 What is the standard Deviation ? Describe a scenario in which you would use each by given an example in electrical measurement and instrumentation?   2.What is the population standard deviaion ?Describe a scenario in which you would use each by given an example in electrical measurement and instrumentation ?   3. How do the statistics calculated using engineering and IT tools compare?  And the statistics that are calculated by hand?     4.What is the importance of modern engineering and information technology in measurement and testingElectrical devices؟

a- What is the diffusion Process? Why it is used?        b- Explain in your own words the meaning of in integrated circuits.

The following waveforms are measured on the input and output of a rectifier while driving a resistive load of 5 ohms. For a given value Ix=65 and through analysis of the respective waveforms, specify, calculate 39) the average output current; 40)the r.m.s value of the output current 41)the r.m.s value of the harmonic present in the output current