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  3. a boost converter has an input voltage vin= 10 v,

A boost converter has an input voltage Vin= 10 V, switching frequency fs= 100 kHz, duty...

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Electrical Engineering

A boost converter has an input voltage Vin= 10 V, switchingfrequency fs= 100 kHz, duty ratio d=50%, load resistance RL= 20Ω,inductance 100μH, and capacitance 680 μF.

If you were trying to make a boost converter enter DCM, but yourload resistor could not reach Rcrit, what other controllableparameters (not including Vin) could you change to reduce

the lowest value of i_L to zero? Explain your reasoning.

Answer & Explanation Solved by verified expert
4.1 Ratings (675 Votes)
The boost converter is a high efficiency stepup DCDC switchingconverter The converter uses a transistor switch typically aMOSFET to pulse width modulate the voltage into an inductorRectangular pulses of voltage into an inductor result in atriangular current waveform Well derive the various equations forthe current and voltage for a boost converter and show thetradeoffs between ripple current and inductance For thisdiscussion we assume that the converter is in the continuous modemeaning that the inductors current never goes to zeroFirst here are some definitionsPeak inductor currentipkMin inductor currentioRipple CurrentRipple Current Ratio to Average CurrentOff    See Answer
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