Sketch Vout at DC as a function of input voltage at DC for-5 V < Vin < 5V. Assume an ideal silicon diode. R1 10k R2 D1 10k
Sketch Vout at DC as a function of input voltage at DC for-5 V < Vin < 5V. Assume an ideal silicon diode. R1 10k R2 D1 10k
Problem 5 (20%)-A Boost dc-dc converter is operating in DC steady state under the following condition: 玲= 4V, pO = 10V, Po = 40W and f, = 200kHz . The value of the inductor is selected such as that under these operating conditions, the peak-to-peak ripple Δ, 2.4. What is the value of the inductance L in uH ? Please provide your answer with calculation in details.
Q5. 5.a. Sketch the circuit arrangement of a DC-DC boost (step up) converter, clearly labelling each circuit element [4 тarks] [Refer to lecture notes] Sketch all significant operating waveforms for this converter for continuous conduction conditions over two switching periods, in particular showing 5.b. the voltage across the main switching device and the boost diode. [2 marks the voltage across the inductor [3 тarks] the current flowing through the inductor [3 marks [Refer to lecture notes] 5.c. The DC-DC boost...
bridge oad DC DC Vload DC For a single-phase DC-AC inverter with an RL load at the output. It is switching using the bipolar SPWM method with the desired fundamental frequency of 400 Hz and the switching frequency of 20.4 kHz. Here the modulation index is 0.6, input DC is 200 V, load R-5 Ω and L 2 mH a. What's the RMS value of the fundamental component of the output voltage across RL? b. What's the RMS value of...
Question 17 (9 points) (a) Label the parts of the DC motor. (5 marks) 1 2 3 5 (b) Explain the Motor Principle in relation to the operation of the DC motor. ( marks) (c) Explain the role of the commutator in the DC motor. (2 marks)
4. Consider the common-emitter amplifier of Figure 5. Draw the dc circuit and find ICQ. Draw the dc circuit and find ICQ. Find the value of Then, calculate values for Voltage gain Av, Open circuit voltage gain Avoc, input impedance Zin, current gain Ai, power gain G, and out- put impedance Zo. Assume operation in the frequency range for which influence of coupling and bypass capacitors can be ignored +15 V +15 V B 100 100 Ω 47ka Figure 5...
Problem 5 (10 points A 3 phase induction machine is mechanically coupled to a dc shunt machine. The rating and parameters of the machines are as follows: Induction machine 3 phase, 5 kVA, 208 V, 60 Hz, four-pole, 1746 rpm (equivalent circuit shown below) Air gap DC machine: (dc shunt machine shown below) 220 V, 5 kW, 1750 rpm R.-0.4 ?, Rf,-1000, Rfc-100? SW tw The induction machine is connected to a 3 phase, 208 V, 60 Hz supply, and...
Measurements Table-t: DC DC Buck Comenter 0.6 o-8 Table-1: DC-DC Boost Coverter 0.2 0,3 0.4 0.5 13th Questions and Answers 1. What is the effect of the duty cycle (D) on the output voltage in DC-DC Buck and Boost Converters? Explain.
In the full-bridge DC-DC converter circuit, Vd = 250 V. The bridge is controlled using bipolar PWM with a switching frequency fsw=50 kHz. The bridge is connected to a speed controlled DC machine. The machine armature inductance La = 0.2 mH and the resistance Ra is negligible