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TextRegion*@Uc9sp@H@Lhttp://www.eecentral.com/qq CharacterMap-RangeMap;www.eecentral.com ChrPropMap7 RangeElem< ChrPropData8 RangeData=w0,0,255 ParPropMap9< ParPropData:@WEmbedMap1<LinkMap/<LinkData0@ NormalArial *@U-Flat Top Distortion 7<8dArial0,0,2559 <!:@W,1"</#<$0@ NormalArial %*@U@@-ApThis worksheet is used to calculate the THD when the input voltage is distorted. At low line the current drawn could have high peaks causing the voltage to distorted because of the source impedance. Any parmeter under a heading that is red can be adjusted or needs to be adjusted. Any heading that is green is the result which is located at half-way of this worksheet.72p&<'8%(<)8%255,0,0&*<>+8%(,<-8%0,128,0*.<>/8%,.(9p0<?:@W,1@@</@A<@B0@ NormalArial @C*@U0SLc0`-Input7@D<@E8@C255,0,09@F<@G:@W,1@H</@I<@J0@ NormalArial @KeqRegionB@U0shO@Ltree@ p@M@@ @L@N@@d@MV.rms@O@@@M88@P*@UsXii-Input RMS voltage79@Q<@R:@W1@S</@T<@U0@ NormalArial @V@B@U0V=@W@@ p@X@@ @W@Y@@d@Xf@Z@@@X60@[*@UXYY-Frequency (Hz)79@\<@]:@W1@^</@_<@`0@ NormalArial @a@B@U0kC@b@@ p@c@@ @b@d@@d@c\F@e@@@c27.55@f*@UX-Clipping voltage (volts)79@g<@h:@W1@i</@j<@k0@ NormalArial @l*@U`XX- Constants7 @m< @n8@ldArial0,0,2559 @o< @p:@W,1@q</ @r< @s0@ NormalArial @t*@U88-Modify at your own risk79@u<@v:@W,1@w</@x<@y0@ NormalArial @z@B@U8#_6F0@{@@ p@|@@ @{@}@@d@|k@~@@@|50@*@U#330`{{-Number of sumations79@<@:@W1@</@<@0@ NormalArial @*@UQd` -Calculated Constants7@<@8@d Arial0,0,2559@<@:@W,1@</@<@0@ NormalArial @@B@U8yJ@@@ p@@@ @@@@d@A@@@@@@@{@@@@@@2@@@@V.rms@*@U{HJJ- Peak voltage7 9 @< @:@W1@</ @< @0@ NormalArial @@B@U8pI@@@ p@@@ @@@@d@\w@@@@@@@@@@@@t@2@@@@\p@@@@f@*@UHHH- Radians/sec7 9 @< @:@W1@</ @< @0@ NormalArial @@B@U8yH@@@ p@@@ @@@@d@B@@@@@@@d@A@@@@\F@*@U HUU- Voltage Range7 9 @< @:@W1@</ @< @0@ NormalArial @@B@U8Z_Hp@@@ p@@@ @@@@d@T@@@@@@@t@1@@@@f@*@UcspH>>- Cycle time7 9 @< @:@W1@</ @< @0@ NormalArial @@B@U8F@@@ p@@@ @@@@d@\t@@@@@@@@@@@@t@1@@@@\w@@@@@@@d@acos@@@p@@@@@@@@d@B@@@@A@*@U  0UU-Time of flat top79@<@:@W1@</@<@0@ NormalArial @@B@U8D @@@ p@@@ @@@@d@t@@@@@@@ @@@@@@@@@@K@@@@@@T@@@@1@@@@@@@@@@@@K@@@@@@T@@@@1@@@@@@@t@0.01@@@@@@@d@T@@@@1@@@@@@@d@T@@@@1@*@UAYY-Time increment79@<@:@W1@</@<@0@ NormalArial @*@U,(-Calculate Harmonic Coefficients7@<@8@d Arial0,0,2559@<@:@W,1@</@<@0@ NormalArial @@B@U8NYx@@@ p@@@ @A@@@@A@@dACA@@pAA@@AnA@@@A@@@AA@@@AA@@tA4A@@AAA @@AA @@dA TA @@A \wA @@pAA @@A A@@@A A@@@AA@@dAsinA@@pAA@@AA@@@AA@@p@AA@@AA@@tA1A@@AnA@@pAA@@AA@@@AA@@dATA@@A4A@@A\tA@@A\wA@@AA @@tA1A!@@AnA"@@A A#@@@A"A$@@dA#sinA%@@pA#A&@@A%A'@@@A&A(@@p@A'A)@@A(A*@@tA)1A+@@A)nA,@@pA'A-@@A,A.@@@A-A/@@dA.TA0@@A.4A1@@A-\tA2@@A&\wA3@@A"A4@@tA31A5@@A3nA6@B@U8-IA7@@ pA8@@ A7A9@@dA8DA:@@A8A;@@@A:A<@@@A;A=@@tA<4A>@@A<AA?@@A;TA@@@pA:AA@@A@AB@@@AAAC@@@ABAD@@dACTAE@@AC4AF@@AB\tAG@@AAAH@@@AGAI@@tAH1AJ@@AHAK@@tAJ2AL@@AJ\wAM@@AGAN@@dAMsinAO@@pAMAP@@AOAQ@@@APAR@@tAQ2AS@@AQ\wAT@@pAPAU@@ATAV@@@AUAW@@dAVTAX@@AV4AY@@AU\tAZ@B@U8 XA[@@ pA\@@ A[A]@@@A\A^@@dA]EA_@@pA]A`@@A_nAa@@A\Ab@@@AaAc@@@AbAd@@@AcAe@@tAd8Af@@AdBAg@@AcAh@@@AgAi@@dAhTAj@@AhnAk@@Ag\wAl@@AbAm@@dAlsinAn@@pAlAo@@AnAp@@@AoAq@@dApnAr@@Ap\wAs@@AoAt@@dAsTAu@@As4Av@@AaAw@@dAvsinAx@@pAvAy@@AxAz@@@AyA{@@dAznA|@@Az\wA}@@Ay\tA~*@UI]\XMM-Waveform7A<A8A~d Arial0,0,2559A<A:@W,1A</A<A0@ NormalArial A@B@U8y1SA@@ pA@@ AA@@@AA@@dAfA@@pAA@@AtA@@AA@@@AA@@@@AA@@@AA@@tA1A@@AkA@@AA@@dAnA@@AA@@@AA@@dACA@@pAA@@AA@@@AA@@dA2A@@AnA@@A1A@@AA@@dAsinA@@pAA@@AA@@@AA@@p@AA@@AA@@@AA@@dA2A@@AnA@@A1A@@A\wA@@AtA@@AA@@dADA@@AA@@dAsinA@@pAA@@AA@@dA\wA@@AtA@@@AA@@@AA@@tA0A@@AkA@@AA@@dAnA@@AA@@@AA@@dAEA@@pAA@@AA@@@AA@@dA2A@@AnA@@A1A@@AA@@dAsinA@@pAA@@AA@@@AA@@p@AA@@AA@@@AA@@tA2A@@AnA@@A1A@@A\wA@@AtA*@UHHdd-Clipped waveform79A<A:@W1A</A<A0@ NormalArial A@B@U8UA@@ pA@@ AA@@@AA@@dAgA@@pAA@@AtA@@AA@@dAAA@@AA@@dAsinA@@pAA@@AA@@dA\wA@@AtA*@UHH"rr-Unclipped waveform79A<A:@W1A</A<A0@ NormalArial A*@U#-Summary Calculations7A<A8Ad Arial0,0,2559A<A:@W,1A</A<A0@ NormalArial A@B@UHbf$A@@ pA@@ AA@@dADistA@@AA@@@AA@@tA100A@@AA@@dADA@@AA@@dAEA@@pAA@@A1A@@{AB@@@AB@@@BB@@tB1B@@BkB@@BB@@dBnB@@BB@@p@BB@@BB @@@BB @@dB CB @@pB B @@B B @@@B B@@tB 2B@@B nB@@B 1B@@BB@@dBEB@@pBB@@BB@@@BB@@tB2B@@BnB@@B1B@@B2B*@U)P77- Distortion7 9 B< B:@W1B</ B< B0@ NormalArial B @B@UH*uSW@%B!@@ pB"@@ B!B#@@dB"SB$@@B"B%@@dB$BB&@@{B$B'@@B&2B(*@U;UKH*P-RMS voltage of clipped waveform79B)<B*:@W1B+</B,<B-0@ NormalArial B.@B@UHef&B/@@ pB0@@ B/B1@@dB0V.avgB2@@B0B3@@@B2B4@@tB32B5@@B3TB6@@%B2B7@@@B6B8@@tB70B9@@B7B:@@dB9TB;@@B92B<@@B6B=@@dB<tB>@@BfB@@@pB>BA@@B@tBB*@Uf,P-#Average voltage of clipped waveform7#9#BC<#BD:@W1BE</#BF<#BG0@ NormalArial BH*@U}-m9m9-@===================================================================== Results =====================================================================7BI<BJ8BHl Arial0,128,09xxEBK B@@ pB@@BB@@dBV.avgB@@BB@@+@B@XB@@B1JB*@U   JJ- % distortion7 B< B8B~ 0,128,09 B< B:@W?1B</ B< B0@ NormalArial B@B@U >  B@@ pB@@BB@@dBDistB@@BB@@+@B@XB@@B1J