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# Test1 - \5&V(lPf l/J L ECE433-Exam 1 February...

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l/J L ECE433-Exam 1, February 18,2011,6:00-7:45 PM Name: PUID: Note: For each questiorç you have to develop the mathematical equations and show the comprehensive work to get the credit. Do not write any final equation without showing the procedure. Otherwise, you do not get the credit. 1) True/False (Briefly explain your answer) (10 points): a) In a DC-DC converter under steady-state conditions, the net change of inductor In a DC-DC converter under steady-state conditions, the net change of inductor nu'þ flta¡y¡p it nä"t \$ela .r y*,r ^wLnpËftËffw :ËJirîl¿""ä,ifë;^TþF"' '=:î Y n n€Í elrøry¡* ()f rc#,rl"r' =+ ¿ntì"r"¡tt arcr utl¿ tøtkÁ'ta .(;infs,: 'i.*=-ry, tî:[: I' Nrtb(ri; i¿=:.-i:ÚAE -W { cgc.{e i3 ftoç't \e-lt, d) In a DC-DC converter under steady-state conditions, the net change of capacitor voltage over one full switching cycle is zero. ff1y- lris is the ystttt'L rF {be Ge.wt¡fa¡ Òtrk:tt/e baløuw: c'4tu(ttoil iÉ:ry'\YP )- iJf rn a Dçßeìo"l-tt"r, blhË#i.s the switching frequency, the average value of the inductor current and the amplitude of the inductor current ripple will be decreased. fg,L:e pP {l,e {nrt[rt :f r/,1 Tt( sut:,{rhw¡ ire ØtlüßÉJv ualue af '{,e rtkku.fi l*|uut,4 the M¿fu¿üV c¿¿fiwLt tJ r nr.lcy'traþ¿-t

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## This note was uploaded on 02/19/2012 for the course ECE 433 taught by Professor Staff during the Spring '08 term at Purdue.

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Test1 - \5&V(lPf l/J L ECE433-Exam 1 February...

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