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1. Taking into account non-ideal characteristics of converter components, determine the following small-signal transfer functions of an open-loop buck converter. Neglect the equivalent series resistance of the output capacitor and assume that a switching load is connected to the output terminals:
transfer function relating inductor current to duty ratio, transfer function relating output voltage to duty ratio, transfer function relating input voltage to output voltage transfer function relating input current to output current
2. A single-phase rectifier with capacitor voltage filter is connected to an AC circuit with negligible inductance. However, some inductance Ldc, is connected between the rectifier terminals and the capacitor voltage filter. Determine the minimum value of Lf in terms of Vs, ω and idc that will result in continuous. Consider the ripple Vdc in to be negligible.
3. A single-phase rectifier with capacitor voltage filter is connected to an ACc ircuit with finite supply-side inductance. Cables connecting the rectifier terminals to the filter capacitor can be considered to have negligible inductance. Sketch the rectifier terminal current graduating the current and time-axes (also show the angle or time at which the current peaks). Vs=120 V, f=50 Hz, Ls = 1 mH, Vdc=150 V.
what are the advantages and disadvantages of using PLDs, including FPGAs, as compared to using discreet logic-integrated circuit chips
Write down the standard Lorentz boost for all four components of u. Use these to deduce the relativistic velocity-addition formula for v.
What property of the space charge region contributes to the collection of charge carriers and which is not present in the neutral regions where movement and collection are by diffusion. Which resistance term does this affect, series resistance, RS,..
A function must be defined or declared above the locations in the source code file from where it is called. We declare a function by writing a function declaration (which is a statement so it ends with a semicolon). Another term for function decla..
Two transformers, A and B, are both suitable. While both transformers have the same efficiency at peak load, most of the loss in A is due to core loss, and most of the loss in B is due to the resistances of the coils. From the standpoint of operat..
draw a circuit diagram for the following experiment1. set up the dc machine to be operated as a separately excited
Given the network of given figure: - Determine ZT. - Find I. - Calculate VR and VL. - Find P and Fp
If vid is 20-mV peak-to-peak sine wave applied in a balanced manner but superimposed on VCM = 0.5 V, what is the value that VDD must have to ensure saturation-mode operation for Q1 and Q2 at all times. Assume Vt = 0.5 V.
Electrical transmission lines construction, operation and maintenance including calculations of losses for short, medium and long lines
Find the current that flows in a silicon bar of 10-µm length having a 5-µm x 4-µm cross section and having free electron and hole densities of 105 / cm³ and 1015 / cm³, respectively, when a 1 V is applied end-to-end. Use µn = 1200 cm²/V·s and µp =..
The power dissipated in the resistor R0 is 89 W when connected to a 10V source. Find the total dissipated power if 3 resistors identical to R0 are connected in series to a 10V source.
State three essential requirements to be observed while launching a pulse of ultrasound from piezoelectric transducer into a gas.
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