A practical Flyback converter with non-ideal elements can achieve input-output voltage ratios above 30.Question 6Select one:TrueFalse

A Flyback converter has the following specifications: input voltage Vin= 21 V, magnetising inductance Lm = 0.7 mH, output capacitance C= 267 uF, Switching Frequency Fsw=0.05 MHz, output resistance Ro= 4 Ohms, and output voltage Vo= 8 V, and N1/N2=4. Assume the converter is ideal. Calculate a) the duty cycle b) the average of the magnetising current c) the maximum of the magnetising current For cost reasons, we are asked to decrease the inductance of the converter you considered in the previous question by 30 times. The rest of the parameters of the converter such as input voltage, switching frequency, output load, capacitance, and transformer turn ratio are kept constant. If we use the same duty cycle that you calculated in part (a), what would be the output power of this new converter?

Assume a Flyback converter that is operating in the DCM. Which of the following can change the operation to the CCM?Question 8Select one:a.Increasing the transformer turn ratiob.decreasing the magnetising inductance c.decreasing the switching frequency d.decreasing the output resistance

An eight-bit D/A converter has a step size of 20 mV. The full-scale output voltage in this case would be

Eng: If closed loop converter output is unstable and fluctuates then one must reduce compensator gain.Est: Kui tagasisidestatud muunduri väljund on ebastabiilne ja võngub, siis tuleks vähendada regulaatori võimendustQuestion 8Select one:TrueFalse

Non-linearity in the output of converter is expressed inPercentage of reference voltagePercentage of full scale voltagePercentage of resolutionNone of these