In the following chopper, the duty ratio of switch S is 0.4. If the inductor and capacitor are sufficiently large to ensure continuous inductor current and ripple free capacitor voltage, the average current through switch is _______ A.
(Assume the switch and diode as ideal)

0.4

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Solution

The correct option is A 0.4
The given circuit is Buck chopper
$\begin{matrix} V_{0} & = α V_{s} = (I_{0} \times R) + E = 0.4 \times 20 = (I_{0} \times 3) + 5 I_{0} & = 1 A V_{0} I_{0} & = V_{s} I_{s} A v e r a g e s w i t c h c u r r e n t, I_{s} & = \frac{V_{0} I_{0}}{V_{s}} = \frac{8 \times 1}{20} = 0.4 A \end{matrix}$

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In the following chopper, the duty ratio of switch S is 0.4. If the inductor and capacitor are sufficiently large to ensure continuous inductor current and ripple free capacitor voltage, the average current through switch is _______ A. (Assume the switch and diode as ideal) 0.4

The correct option is A 0.4The given circuit is Buck chopper V0=αVs=(I0×R)+E=0.4×20=(I0×3)+5I0=1AV0I0=VsIsAverage switch current,Is=V0I0Vs=8×120=0.4A

In the following chopper, the duty ratio of switch S is 0.4. If the inductor and capacitor are sufficiently large to ensure continuous inductor current and ripple free capacitor voltage, the average current through switch is _______ A.
(Assume the switch and diode as ideal)

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