The turns ratio required to match a 50 Q source to a 200 Q2 load is Select one: OA. 1:2 OB. 1:4 C. 4:1 OD. 2:1
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- A load resistor RL is in parallel with a noisy source (vS << VS), and a biasing component, which canbe a linear or a nonlinear element. Suppose we can write the total source voltage vS and the totalload voltage vL as shown in the image. Answer the ff and explain clearly. i. Let the biasing component be a linear resistor with resistance RB. Without the noise, determinethe value of RB so that the load voltage is 5V. ii. With the noise, determine the ratio of the load voltage noise and the source noise (vI /vS )..2. Consider buck-boost converter with the following parameters: Vin=40 V, V0 =60 V, R=20 Ω, andL=750 µH. Determine the duty cycle? is this converter operates as a buck or a boost converter ?and Calculate IL,min and IL,max.A buck-boost converter operates with an input battery. It converts +12 V to –12 V at apower level of about 75 W. the switching frequency is 120 kHz. The switches have200 ns switching time. The battery has an internal series resistance of 0.2 and seriesinductance of 200 nH. (a) What is the operating value of the duty ratio? What power is lost in the battery resistance? (b) Propose an interface structure to improve operation and decrease losses. What are the duty ratio and battery resistance loss with your interface in place?
- With a neat diagram ,explain about the working of Dual Slope ADC.IDSS=8mA , VP =-4VTo help plot the DC load line VGS=VG-IDRSa)Attach a Plot of JFET Characteristic Curve as shown in Figureb)What is the approximate VGSQ?c)What is the approximate IDQ in mA?d)Determine source voltage VS.e)Calculate the drain voltage VD.f)Calculate the drain-to-source voltage VDS.of a Flyback converter with Circuit parameters given below.Circuit Parameters;Input Voltage Vs= 48 VN1/N2=3Lm=500 μHR=5ΩC=200 μFSwitching frequency f=40 kHzOutput Voltage Vo=10 Va) Duty Cycleb) In terms of magnetization inductor (Lm); mean, maximum andtheir minimum values;c) Find the output voltage fluctuation. (All components are ideal.assume.)
- FACTS: AC-DC converters take the AC power from wall outlets and convert it to unregulated DC. These power supplies include transformers that change the voltage of the AC that comes through wall outlets, rectifiers to save it from AC to DC and a filter that removes noise from the peaks and troths of the AC power waves.The DC-to-AC Converters are used to charge the batteries in the vehicles. These circuits are mainly used for driving low-power AC motors and are used in a solar power system. The DC to AC converters can be used in dc transmission lines for transmitting power to loads. QUESTION: What do you think is the main reason why we have AC power in our outlets instead of DC power? Explain your answer.Determine the terminal currents and voltages of Q1 and Q2 (b) Vcs, (c) Vce, (d) VosGiven the following details: The inverting adder schematic as seen below Vac is an AC voltage source which generates a sine waveform with amplitude 1mV and frequency 1kHz Vout is a sine waveform with amplitude 1V and has a DC offset of 3.5V Find the values of Vdc, R1, R2 and Rf that would satisfy the description for Vout. Assume ideal scenario (i.e. do theoretical computations instead of practical simulations)
- Explain dual slope ADC and successive approximation ADC with neat block diagram and compare the two approachesPower 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) 33.75Draw circuit for Boost Converter. Also derive its Output equation. What will be the value of Duty Cycle (D) if the input voltage is 50 V DC and desired output voltage is 20 V DC.