| | uqpxrpu| rury} qpx} , u}~~ y |y~uz~s |wu~y , tpr{y uu }up~yu{z ~usyy , rx}w~ y us rt~ p y uu }up~yu{z ~usyy , rx}w~ y~uxyrp rt~u ~pwu~yu / pp }|u~~z p y t|yu|~ y ~r~z ~utp{ u} y~rur ~pwu~y y|x pr~}~z y~ru } uqpxrpu|uz y|xrp~yu} tpy{p |wu~y ; r }y~ y pr|u~y }~z ~psx{z uqu ~ywu~yu }}u~p y~uyy . Dp~~u uqpxrpu|y p , t| y~~~ tryspu|uz { {~}yy 20-50 %) ; q pp{uyy{y . B {puru tsy y~y{r y }wu~y quuyrpu rt~u ~pwu~yu sp~yu~ }p{y}p|~} pqy} ~pwu~yu} t 60%) , ttuwp~yu ~~z pr|uz ~pwu~y y~rup rurp pp p~xyr }rs y~rup uqpxrpu| tqpr|u~yu t|~yu|~ y|r {|uz y|x r p{y{ y}u~u~y : Purp sp q|uu u r~uz rt~s ~pwu~y (dv/dt) , y|y y~~~s tryspu| { ~ywu~y KPD y ~p , {u , y p~tp~} yp~yy 220/380 B . @~p|sru rt y|x r{r|~u IGBT {|uz , y }y utrpyu|~s r{p~s uqpxrp~y |p ~pwu~yu u~~z } , uyp|yxyrp~~u {~||u) . Xp~u us|yrp~yu p - r pr { rty yy y|y xp|~{ , xtprpu}u y~y{} rt~pqwu~y , yq|ywpyu rq p~p|sy~ uttu} ~{ . B }up||syy qu pp~u~yu ~y y~usy y p~pr|yrpu }}u~ y pr|u p{y yxrtru~~ up {p{ y}uyu ~~z { t| pr|u~y tpuz ~p~ p~y . D| |u~y pqy utp . Tru|yu~yu {p |wq qtrp~y yu} rt~pqwu~y . ) up|yxu q , ~p ru|yy~ u , p uu{|u~yu {|uz rxp~ y . P yy~u . Rrurp qpq{p y yu} quuuqz~s yp~y {}ur }~ q|uu ruu~~p |u}u~~p qpxp (|rt~y{ru {|y , pz , p |{ ~uqty}u ~{yy rp} ~wu~ q|uu u{yr~u x~pu~yu {s y yx}u~u~yy pr|y y rt~} ~pwu~yu tu|y r~ utr} y|xrp~y |u}u~r sp~yyr us rt~ ru|yy~ . B ~y . Pr|u rx}w~ r|u~y ~~z pz 50 C . Npy}u , wu ~u}p|rpw~ . B }|u~~y ...@u}~ p~ uqpxrpu|uz
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