If operating a buck converter in closed loop, what signal should we feed into the controller?Question 4Select one:a.(Reference voltage - Measured voltage)b.Reference voltagec.Measured voltaged.(Measured voltage - Reference voltage)

Where should you connect the voltage sense input to in your buck converter circuit?Question 2Answera.groundb.The input to the resistor (between the inductor and the resistor)c.DC+d.The input to the inductor (between the commutation cell and the inductor)

Describe how the dc voltage at the buck chopper output varies when the duty cycle of the switching controlsignal is increased

In closed loop, which of the following are directly (ie user) controlled?Question 3Select one:a.Duty cycleb.Output voltagec.Output currentd.Inductor voltage

Why would we use a closed loop buck converter instead of an open loop one?Question 4Answera.Closed-loop converters can maintain the same output even if the input is changingb.Closed-loop converters are cheaperc.Closed-loop converters can cope with changing component values (i.e. resistance as the resistors heat up)d.Closed loop converters have less current ripple

A Buck converter is charging a battery, with the following specifications:  (Consider ideal switch and ideal diode) a)  Vin = 25 V, Vb = 8 V, RL=20 Ω,  b)  fs= 100kHz (switching frequency), d=0.4 (duty ratio) c) Peak to peak inductor current ripple is 10% of the output current. d) Output voltage ripple across capacitor is 5% of the output voltage.