8/8/2019 Fundamental of Impedance Analysis
1/13
)XQGDPHQWDOVRI%LRHOHFWULFDO,PSHGDQFH$QDO\VLV
5XGROSK-/LHGWNH)HEUXDU\
HPDLOUXG\O#UMOV\VWHPVFRP
+RZGRFHOOVZRUN
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
8/8/2019 Fundamental of Impedance Analysis
2/13
,QWKHKHDOWK\OLYLQJERG\WKHFHOOPHPEUDQHFRQVLVWVRIDOD\HURIQRQFRQGXFWLYHOLSLGPDWHULDOVDQGZLFKHGEHWZHHQWZROD\HUVRIFRQGXFWLYHSURWHLQPROHFXOHV%LRORJLFDOO\WKHFHOOPHPEUDQHIXQFWLRQVDVDSHUPHDEOHEDUULHUVHSDUDWLQJWKHLQWUDFHOOXODUF\WRSODVPDQGH[WUDFHOOXODUFRPSRQHQWV7KHOLSLGPHPEUDQHLV
WUDQVYHUVHGE\SURWHLQVZKLFKDUHVROXEOHLQZDWHUWKXVPDNLQJSRUHVWKURXJKZKLFKZDWHULRQVDQGRWKHUFKHPLFDOVFDQHQWHUDQGH[LWWKHFHOO&RQWUROOLQJWKHIORZRIWKHVHPDWHULDOVLVHVVHQWLDOWROLIH7KHFHOOPHPEUDQHSURWHFWVWKHLQWHULRURIWKHFHOOZKLOHDOORZLQJSDVVDJHRIVRPHPDWHULDOVWRZKLFKLWLVSHUPHDEOH7KHFHOOPHPEUDQHLVFRPSRVHGPRVWO\RIDGRXEOHOD\HURISKRVSKROLSLGVDUUDQJHGWDLOWRWDLODORQJWKHZLGWKRIWKHFHOOPHPEUDQH7KLVVWUXFWXUHLVFDOOHGWKHOLSLGELOD\HUDQGLVDQHOHFWULFDOLQVXODWRUGLHOHFWULFDVDOOIDWVDQGRLOVDUH7KHKHDGRIWKHSKRVSKROLSLGVDUHSRODUFDUU\DFKDUJHDQGWKHWDLOVDUHQRQSRODU7KHKHDGVLQWHUDFWZLWKZDWHUZKHUHWKHWDLOLVUHSXOVHGE\ZDWHUDOLJQLQJWKHPWDLOWRWDLOZLWKWKHKHDGVIDFLQJWKHRXWVLGHDQGLQVLGHRIWKHFHOO
,QWURGXFWLRQWR%LRHOHFWULFDO,PSHGDQFH0HDVXUHPHQWV
:KDWVWKHFLUFXLWRIWKHKXPDQERG\
8/8/2019 Fundamental of Impedance Analysis
3/13
%LRHOHFWULFDOLPSHGDQFHVFLHQFHVDUHWRWDOERG\PHDVXUHPHQWVIURPKDQGWRIRRWZKHUHUHVLVWDQFH
DQGUHDFWDQFHLVHYLGHQWIURPDFLUFXLWWKDWFRQGXFWVDOWHUQDWLQJFXUUHQW7KHVRXUFHHOHFWURGHVLQWURGXFHDQDOWHUQDWLQJFXUUHQW.K]DWWKHEDVHRIWKHWRHVDQGILQJHUV7KHGHWHFWLQJHOHFWURGHV
PHDVXUHWKHYROWDJHGURSGXHWRWKLVFLUFXLWDWWKHDQDWRPLFDOODQGPDUNVRIWKHDQNOHDQGZULVWERQH7KLVLVDIRXUHOHFWURGHRUWHWUDSRODUPHDVXUHPHQWZKLFKLVHVVHQWLDOWRHOLPLQDWHHOHFWURGHDQGILHOGGLVWULEXWLRQSUREOHPVDVVRFLDWHGZLWKWZR
HOHFWURGHPHDVXUHPHQWV
7KHFRPSOH[KHWHURJHQHRXVFLUFXLWVRIWKHKXPDQERG\DUHPDQ\HDFKEHLQJDFRPELQDWLRQRIFHOOVDQGWKHLUVXSSRUWLQJHQYLURQPHQW7KHFHOOVKDYHHOHFWULFDOFKDUDFWHULVWLFVWKDW
IRUPFDSDFLWRUVRUKDYHUHDFWDQFH7KHVXSSRUWLQJHQYLURQPHQWLVWKHWUDQVSRUWPDVVWKDWLVUHVLVWLYHRQO\VLQFHLWKDVIHZFHOOV(DFKVHJPHQWRIWKHKXPDQERG\DUPVOHJVWRUVRHWFKDYHWKHLURZQHOHFWULFDOFKDUDFWHULVWLFVSULPDULO\
EHFDXVHRIWKHLUJHRPHWULFDOGLDPHWHU$F\OLQGHUZLWKD
8/8/2019 Fundamental of Impedance Analysis
4/13
8/8/2019 Fundamental of Impedance Analysis
5/13
8/8/2019 Fundamental of Impedance Analysis
6/13
:KDWGR5-/%,$VPHDVXUHIURPWKLVPRGHO"
:KHQWKHVLJQDOIURPDELRHOHFWULFDOLPSHGDQFHDQDO\]HULVLQWURGXFHGWRWKHFHOOVHQYLURQPHQWDVPDOODPRXQWRIWKHVLJQDOLVOHDNHGWKURXJKWKHSURWHLQ
8/8/2019 Fundamental of Impedance Analysis
7/13
8/8/2019 Fundamental of Impedance Analysis
8/13
8/8/2019 Fundamental of Impedance Analysis
9/13
7KLVVLPSOHDQGHOHJDQWWUDQVIRUPDWLRQFDQQRZEHXVHGWRSUHGLFWLQWUDDQGH[WUDFHOOXODUYROXPHRIOLYLQJRUJDQLVPVRISODQWVDQLPDOVDQGPDQ3DUDOOHOWUDQVIRUPDWLRQVHSDUDWHWKHHIIHFWRIWKHUHVLVWLYHFRPSRQHQWRQWKHUHDFWDQFHFRPSRQHQWDQGYLFHYHUVD7KLVFDQEH HDVLO\GHPRQVWUDWHGE\FRPELQLQJD
2KPUHVLVWRUDQGDSLFRIDUDGFDSDFLWRULQSDUDOOHODQGPHDVXULQJWKHPZLWKD5-/%,$LQVWUXPHQW7KHLQVWUXPHQWZLOOPHDVXUHWKHVHFRPSRQHQWVDVLQGLYLGXDOFRQGXFWRUVZKHQFRQYHUWHGWRDSDUDOOHOQHWZRUN&RQWDFW5-/6\VWHPVIRUDIUHHGHPRNLWDQGLQVWUXFWLRQVHPDLOUXG\O#UMOV\VWHPVFRP
6LQFHOLYLQJFHOOVDUHFDSDFLWRUVKRZGRHVSDUDOOHOUHDFWDQFHORRNZKHQH[SUHVVHGDVFDSDFLWDQFH"
$FDSDFLWRULQLWVVLPSOHVWIRUPFRQVLVWVRIWZRSODWHVVHSDUDWHGE\DGLHOHFWULFRULQVXODWRU$Q\VXFKFDSDFLWRUKDVDFKDUDFWHULVWLFNQRZQDVFDSDFLWDQFHZKHUHE\LWLVDEOHWRKROGDQHOHFWULFDOFKDUJH7KHFKDUJHLVSURSRUWLRQDOWRWKHVL]HRIWKHSODWHVWKHTXDOLWLHVRIWKHGLHOHFWULFDQGWKHDSSOLHGYROWDJHDQGLVH[SUHVVHGDV
FDSDFLWDQFHLQ)DUDGXQLWV)2QH)DUDGLVDFWXDOO\DUDWKHUODUJHDPRXQWRIFDSDFLWDQFH&DSDFLWRUVDUHXVXDOO\UDWHGLQPLFUR)DUDGV;
)RUSLFR)DUDGV; )
&DSDFLWRUVDGG LQSDUDOOHOFLUFXLWV7KHERG\LVFRPSRVHGRIFHOOVRUFDSDFLWRUVLQDSDUDOOHOFLUFXLW7KHUHIRUHSDUDOOHOUHDFWDQFHPHDVXUHVWKHVXPRIWKHFHOOVLQWKHERG\LQWKHFRQGXFWLYHSDWKZD\
7KHFRQYHUVLRQRISDUDOOHORUVHULHVUHDFWDQFHWRFDSDFLWDQFHLVDVLPSOHFRQYHUVLRQ7KHGHQRPLQDWRURIWKHHTXDWLRQFRQWDLQVWKHDSSOLHGIUHTXHQF\.K]
UHDFWDQFHLQ2KPVDQG3,7KHODUJHQXPHUDWRU;LVWRFRQYHUW)DUDGVWRSLFR)DUDGV6RIDUHYHU\WKLQJLVJRLQJLQWKHULJKWGLUHFWLRQ$ERG\EXLOGHUIRUH[DPSOHZRXOGKDYHDKLJKVHULHVUHDFWDQFHDQGORZUHVLVWDQFHYDOXHIURPD%,$DQDO\]HUDQGWKHUHIRUHKDYHKLJKFDSDFLWDQFHRUPRUHFHOOYROXPHEHFDXVHKHLV
H[WUHPHO\PXVFXODU
&RQYHUWLQJUHDFWDQFHWRFDSDFLWDQFH
8/8/2019 Fundamental of Impedance Analysis
10/13
,V%,$VHQVLWLYHWRFKDQJHVRIERG\FHOOPDVV"
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
%RG\FHOOPDVV%,$FRPSDUHGWR.
8/8/2019 Fundamental of Impedance Analysis
11/13
7KHWKUHHGLPHQVLRQDOVXUIDFHSORWEHORZGHPRQVWUDWHVWKHVHQVLWLYLW\RI%,$WRFKDQJHVRIERG\FHOOPDVVIURPUHVLVWDQFHDQGUHDFWDQFHPHDVXUHPHQWVRID5-/6\VWHPV%LRHOHFWULFDO,PSHGDQFH$QDO\]HUXVLQJWKHSUHGLFWLRQHTXDWLRQVGHVFULEHGLQ3UHGLFWLRQRIERG\FHOOPDVVIDWIUHHPDVVDQGWRWDOERG\ZDWHUZLWKELRHOHFWULFDOLPSHGDQFHDQDO\VLVHIIHFWVRIUDFHVH[DQGGLVHDVH LQWKH$P-&OLQ1XWUVXSSO66
%,$ .FRXQWLQJ
0HDQV.J 0HDQV.J
6' 6'
Q$,'6&RQWUROV
U
6((.J
8/8/2019 Fundamental of Impedance Analysis
12/13
&RQFOXVLRQWRZKDWWKH5-/%,$LQVWUXPHQWPHDVXUHV
7KHVSHFLILFLW\RUDFFXUDF\RI%,$WRSUHGLFWWRWDOERG\ZDWHUIDWIUHHPDVVDQGIDWKDVEHHQZHOOGRFXPHQWHGE\KXQGUHGVRIMRXUQDOSDSHUV5HFHQWO\%,$SUHGLFWLRQHTXDWLRQVKDYHEHHQGHYHORSHGWKDWXVHSDUDOOHOUHVLVWDQFHDQGUHDFWDQFHDVSUHGLFWRUVRIH[WUDFHOOXODUPDVVDQGERG\FHOOPDVV&RPSDULVRQVWR.'(;$DQG'ZHUHYHU\JRRGU!DQGDUHVXIILFLHQWWREHXVHGLQFOLQLFDOSUDFWLFHDQGVWXGLHVRIZDVWLQJGLVRUGHUVLQ$,'6SDWLHQWV$P-&OLQ1XWUVXSSO66
:KHUH%,$VFLHQFHVUHTXLUHVIXUWKHUZRUNLVFRPSDULQJLWWRZKDWLVQRUPDOVRTXDQWLWDWLYHGLIIHUHQFHVFDQEHHVWDEOLVKHGIRUGLDJQRVWLFLQWHUSUHWDWLRQ 7KHPRVWVDOLHQWIHDWXUHRI%,$LVLWVUHSURGXFLELOLW\JLYLQJWKHIXQGDPHQWDOEDVLVIRUVHQVLWLYLW\WRFKDQJHWKDWZRXOGEHLQIOXHQFHGE\GLVHDVHRUWKHUDS\ 7KHJUDSKLFVRIWKLVWXWRULDOFOHDUO\LOOXVWUDWHWKDW%,$KDVWKHFKDUDFWHULVWLFVWREHDYDOXDEOHWRROLQPHGLFLQHRQFHQRUPDOVDUHGRFXPHQWHGDQGFRPSDUHGWR%,$
SUHGLFWLRQV8VLQJERG\ZHLJKWDORQHLVDQLQDFFXUDWHPHDVXUHPHQW%RG\FRPSRVLWLRQDQDO\VLVDOORZVXVWRVHHZKDWLVFDXVLQJZHLJKWFKDQJHVRUZKDWZHDUH
8/8/2019 Fundamental of Impedance Analysis
13/13
PDGHRI0XVFOHFHOOVIDWZDWHU+RPH 7RS 6HDUFK
Top Related