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…

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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

Q 2) A single phase half-wave uncontrolled rectifier with RL load is shown With R=1002, La 0. 1H w-377rad/s and V 100V, Determine: a) An expression for the load current i(t). b) The value of the current at t3D16 ms. c) The average load current (1C WLialx197=ア7.9 =121 V, = V, sinfar) 17.2 0.360

2. An AC voltmeter uses a bridge rectifier with silicon diodes and a PMMC instrument with FSD = 75 µA. If the meter coil resistance is 900 Q and the multiplier resistor is 708 k2, calculate the applied rms voltmeter when the voltmeter indicates FSD.

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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.

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%.

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

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Electrical Engineering _ Power Electronics Notes: pls try to answer in less than 30 min.

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

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

Please solve step by step in handwriting notes on plane white paper. If any  data is missing then you can assume data as you wish

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 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.

(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)

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Electrical Engineering _ Power Electronics Notes: pls try to answer in less than 30 min.

please solve A and B

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

4: A 3 phase half-wave controlled rectifier is operated from 3-phase, line to line voltage 2300, 50HZ 3 Supply with load resistance R L =10 Omega* I If the average output voltage equal to 77.60. Sketch the time variation of the output voltage and load Current and determine: a) The firing angle bj Average and rms value of the loud Current.

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, 50Hz, and the inductor load resistance R=22 2, Calculate: (a)The average output voltage Vac and current Ide (b) The rms value of the output voltage Vorms and current Iorms. (c) The rms value of the diode current IDrms and the PRV of each diode.

Please solve for following based on attached circuit: average laod current RMS load current average load power absorbed apparent source power