Problem 3
Draw a block diagram of a complete ±12 V regulated power supply using LM78XX and LM79XX series parts.
Problem 3 Draw a block diagram of a complete ±12 V regulated power supply using LM78XX...
For a single-phase ac supply, and using a series RL circuit diagram, draw the phasor diagram for the RL circuit using the voltage as the reference and show the power factor angle.Also show with a phasor diagram how a capacitor connected across the series RL circuit will reduce the power factor angle and total current.
6. Three resistors are connected in series with a 12 V power supply: 1.2 k12, 2.5 k12, and 1.8 k? a. Draw a diagram of the circuit. b, what is the equivalent resistance of the circuit? C. Fill out the values for current, voltage, and power on the following table. SHOW ALL YOUR WORK FOR FULL CREDIT. (Give your answers in mA, V, and mW.) 1.2 2.5 1.8
3. For the regulated power supply shown in Figure 5-3, which is a full-wave bridge rectifier containing ter combined with a Zener diode voltage regulator, determine the load voltage VI, load current Ir, source current Is, Zener current Iz and the ripple voltage at the input and output of the regulator, and r(p-p)y respectively, and the ripple frequency fr a fil- VL Ir. Is Iz=. (d-4)1a Ur(p-P) Is V' 1N4002GP Vout = VL + Iz IL 100 V2 120 V...
calculate IT Part II: Power-Block Diagram Use the power-block diagram in Figure 5.3 to determine Ir 500 VAR (IND) 900 VAR (CAP) 150W 50 + j10 V 400 5v 20-j75 Figure 5. 3: Power-Block Diagram
A circuit is constructed with an AC power supply, with a peak voltage of 12 V and a frequency of 50 Hz, connected in series with a 200 Ω resistor, a 300 mH inductor and a 470 μF capacitor. Calculate the peak value of the voltage across the resistor, in V.
a) define complex power in terms of the supply current i and v b) draw separately the current and power phasor relations for the case of a load consisting of a series connection of a resistor and an inductor across the voltage supply c) A single phase load connected to a 230V, 50Hz source draws is rated 1.84kVA at a phase angle of 40,lagging, determine the current drawn from the supply and load power factor, calculate the active and reactive...
The problem states, “Given the block diagrams below, draw the logic circuit diagram for part 1.” Given the block diagrams below, draw the cireuit diagram for part 1. Vce 16 15 10 14 13 74LS48 12 10 GND Numerical Designations-Resultant Displays LT RB HHHLLHH LLHH LHL Given the block diagrams below, draw the cireuit diagram for part 1. Vce 16 15 10 14 13 74LS48 12 10 GND Numerical Designations-Resultant Displays LT RB HHHLLHH LLHH LHL
a) Choose one example of the existing power station or DG system. Draw a complete block diagram of the station [6Marks] Give a brief summary of the station [6Marks] b) As a technician who worked at the plant you named in (a), discuss TWO (2) ethical issues that you may encounter at your workplace. Then, suggest an appropriate action to overcome the issues. [10 Marks]
QUESTION 5 (15 points) a. You have a power supply which is a full-wave rectifier with a capacitor filter It operates from the mains and provides an output of Voc-: 20 V with 20% ripple, when the load current is 2 A. Calculate the maximum and minimum values of the output waveform of this power supply. b. Now you will design a series voltage regulator between the power supply described in part (a) and an electronic device operating at 12...
Why does power supply decrease when you add additional resistors in series? (For example, using 3 resistors in series versus 4 resistors in series) I understand that as you increase the number of resistors in series, it increases the equivalent resistance. If the equivalent resistance increases, and the voltage stays the same, then the current decreases (V=IR). Then you can say P=V^2/R, which means that the power decreases, right? But shouldn't the total power be the same as the first...