Q.11: For the coupled circuit shown: 1. Compute the complex value of J1 (2 J9 2 k=0.75 currents i & i2. J4 2 100/00 v 2. Find the consumed power in each branch. (Ans.: P2=1166.4W, P3-432W & Ps=751.5W)
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- chapter 1 Q1 The rms value the AC input voltage to the of Circuit shown is 230U, and the firing angle is maintained Current is 5 A. constant at 45° so that the load a) Calculate the de output voltage. b) Assume that the load resistance remains the a same, find the current is a FWD is used at the output. c) If^ prime prime ScR^ prime prime " is open circuited, find load voltage and current a is the Same) (FWD is still connected and high. "L Load Ans[146.4U,6.03A ; 3.c2A] 3 3 FWDConsidering the power transfer through an impedance between nodes 1 and 2, Z= R + jX, derivethe expressions for active and reactive power at node 2. Explain the relation between the active powervoltage angle and reactive power- voltage magnitudePower Electronics. In the Buck-Boost DC-DC converter circuit:Welding voltage [40-80]VSwitching frequency (f) 25khzVoltage between load terminals 55VCapacitance value 470uFLoad current value [10-25]A Under these conditions, which is the lowest ripple (delta IL) amount of the current passing through the coil (L) in Amps for the lowest L inductance value that can keep the DC-DC converter in a continuous current state? A) 23.9803B) 118.75C) 84.3750D) 47.5E) 59.9507F) 33.75
- in the circuit given in the figure , VDD = 20 V ,Rs= 1 kohm , VGSQ= -2.6 v, IDQ = 2.6 mA.the transistor specifically has values of IDSS = 8mA , Vp= -6 V , and gos =25 µS. what should be the RD resistance for the output voltage to be -24.85 mV when an AC voltage of 12 mV is applied to the transistor input ? Options: a) 3.3 kohm b) 4.2 kohm c) 4.5 kohm d) 3.6 kohm e) 3.9 kohm8.00 gyl gl 130 e 7 1:10:56 asall cidgll %efer to the class AB amplifier shown (a) Determine the dc parameters Vg (Q1), Vg (Q2), Vg, (lcq, Veea(Q1), Veeq (Q2 b) For the 5 V rms input, determine the power) .delivered to the load resistor lc) Draw the load line for the npn transistor) +Vee +9Vamplifier (boost) DC-DA converter circuit, given below; 1- Source voltage (E) value: In the voltage range of [A B] (Volts) 2- Switching frequency (f) value: M kHz 3- Voltage between load terminals (Vload) F (volt) 4- Capacity value is 470 (microF) 5- Pload>= H(watts) consumed per load In which case below do you see the lowest L inductance value in microH that can keep the DC-DC converter in a continuous current state under the conditions? A=25 VOLT B=40 VOLT M= 25kHz F = 55 VOLT H=15 Watts a) 454.5475 b) 382,045 c) 263.62 d) 128.5 e) 581.81
- I want a solution in less than 30 minutes Often, the network is referred as an infinite bus when a change in input mechanical power or in field excitation to the unit does not cause an appreciable change in a. system frequency or terminal voltage b. Total production cost c. system frequency and terminal voltage d. system frequency aloneFOLLOW UP QUESTIONS: BIPOLAR JUNCTION TRANSISTOR (BJT) SOLVE FOR: a.) VCE (off) CONSTRUCT A DC LINE SHOWING THE VALUES OF b.) IC (sat) c.) VCE (off) d.) ICQ e.) VCEQA building, supplied by a 230 Vrms source and with inductive loads, has an average consumption of 40kW and 26kVAR. Find the following: - Power factor of the load- By installing a capacitor in parallel with the building, what is the minimum kVAR needed to make the power factor within the range of 90%-100%
- Consider the two industrial loads that are connected to the source as shown in Figure. We would like design a compensation system to correct the power factor as seen from the source. The Source and the feed line between the source and 40kW source is not accessible, but the feed line between the loads is in the factory, although it is fixed (you cannot change it). The voltage across the 18kW load must be kept constant at 220V(rms).(a) Calculate the value of Vs, without compensation.(b) How must we connect the compensation capacitor(s) to the system? Possible choices are:Between the terminals ofi. the source,ii. the 40kW load,iii. the 18kW load,iv. both loads,v. the source and both loadsJustify your answer.(c) We want to set the power factor of the source to 0.96 (lagging). Calculate the impedanceof the capacitor(s) required, according to choice you made in part (b). The frequency ofthe operation is 50HZFind the value of the load resistance for the maximum power tranfer theorem.The value of Vx is set by RB1 and RB2. To get close to an ideal voltage source having zero Thevenin resistance, we want the Thevenin resistance of our voltage reference circuit, RTH (shown above right), to be smaller than theresistance connected to it, in this case RTH. Assume beta = 100, VCE,SAT = 0V A) Using nodal analysis, determine the value of Vx. B) Verify the state of the BJT that you assumed in (a). C) Determine RTH.