| uqpxrpu| p y
{pwtz uz{u ~yx{p u~p . t . Nu} ~p xtp~yu yxq~s tpr|u~y r
qrtu) . ) y ~ps
x{ q|uu , {p{ trp t~~ppr|u~~ {|p) , ~py}u , {}u . U
~{y |u{yu{s ~pwu~y xptp~~z p y ru~y|r y|x
u {}qy~py tr
rxp~~ |u{}ps~y~ }u ~p
qrtp , q ~ y|x
u {rptpy~p xpryy} }uwt
rprpy} y
pr|u~y uqpxrpu|
ur|u
pr|u~yu yrt} }~y }p{y}p|~z ru q|
wyrpu} t}r . Sp{y} qpx} , y{|y qr y ~yw~us y|r {|uz (IGBT-p~xy qy|~z p~xy ~~z p uq
u ~~s {p . Xpp rt~s ys~p|p . Nuqty}u t| quuu~y q|us {|yurp y|utrp~yz r {puru yz . D| ru pp |
u~y |t~z y r|psy (t xpy y y pp r ur
uut p| rx}wu~ r pr { p{z ~ps
x{z , }w~ y ,
tq~z y~uuz , uq
us uu}uu~y ~uur~s }puyp|p uux {~tu~p . B ~puu ru}
{ , pp{uyy{p p~ry {rptpy~z . Xp~z uqpxrpu| p , ru{~u
pr|u~yu quuyrpu : tpr|u~yu r u 1 , ~ us
| {y , y|x
u}u t| t
sy }|u~~-pxry p~p . Put
}yu ~u{z xpp xpsp}}yrp~~}
spy{
. ) , { {|u~y p~s uqpxrpu| , }x~} uxy} . U
~{y |u{yu{s ~pwu~y . Py }y~y}p|~} ptu ~p , rtus r pr y~y{r y up|~s tpr|u~yz ru~~} r st . B xp
quw~z p{y{u |
y| p~ us
|y
u}z |u{yrt , }wu~yu ~~} , t| su~uyrp~y y~
ytp|~ {r |u{yrtp , r
{pu}u r uu
~{y~yrp~y r
pr|u} |u{yrtr . K~tu~p~z uqpxrpu| p |
wy t| yrtp r uy
u} }s }py~s uqpxrpu| r|~u sp}}~u quuu~yu , ~ywu~yu ru~y rtp ~pp . B xp
quw~z p{y{u {~}yu{yz u{ {p{pt~s uqpxrpu| . Sp{y} qpx} , y ry yxrtyu|~ . B ux
|pu ptppyy qu}|u~~ py~~~ yrtr . Xp~z uqpxrpu| , ~ywp ~t xppq~z |p q|
wyrpus y utu|u x~pu~yu} ~~s
y|y ~pwu~y ~yy) . ^{~}y |u{yu{z }py~ y ...@u}~ p~ uqpxrpu|uz
|