| uqpxrpu| ru}y y
y}y u}
ypu|~}y |utry}y , y r{u}up
~ u~|syz y|y uu uqyu| , y }p{y}p|~z ~ps
x{u r{p u}~yst~) . ) up|yx
u uzy}y uqpxrpu|}y utu|u~~} xpp} y~
ytp|~}
, pr~} |ry~u uytp yx}u~u~y p , {p{ r~yx , {u quuyrpu qu
}~ y r~utu~y p~ uqpxrpu|uz y}uu rx}w~
p~r{y r q
p{yu{y } uyp|yxyrp~~s ry|yu|~s
zrp . R
ur
u ~u{|{ xpru~~u pp{uyy{y tryspu| pr|u }~y) qr r ~r~}
zrp y|y MOSFET , s|pwyrpu y r{
}~ |u{tryspu| ~pp sus rt~pqwu~y ~uqty} y|rp , tpwu ~uq|u ~ywu~yu {y rpu~y tryspu| , ~uqty} |~ { r xp~-us
|y
p}p
. U
~{y |u{yu{s ~pwu~y ~rp~p ~p 40-60% . ^y |u}u~ quty~u~ r WSP } {~tu~pr , ~py~p uq qu} ptr , {z }wu q uu~p } ~pu~y }puyp|p }ps~yrtp p~}pp , }w~ y|xrp |{ upsyrp ~p |{ 27 pry|~}y ~y}y {}}
pyy . B uqpxrpu| s yp y yx rxpy}tuzr
y |u{yu{y uqpxrpu|uz r u . Nutp{} ~uqty} r rpu} stu . Sp{ r quuyu rxpy}xp}u~u} y rxrppu r uy , 4 t |~s p~rp , s|pwyrpu y suz rt xp u ru~y {purp uuz . Sp{yu uqpxrpu|y |u{~~s
zrp rustp y~yyy
pxryyu t|wp| rqt~u rpu~yu . D| |
u~y
pr|u}@u}~ uqpxrpu|uz p uqpxrpu| uqpxrpu| px~} } r|u y~y{} ry sp}~y{ r pru yu} ~~z p}|y
tz 380B r}|u r yu}p rt~pqwu~y wy| t}r uux rt/rt) . Nyw~yz utu| us
|yr{y PX |us{ up|yx
u u} , pt }w~ tu|p , {u ~uqty} x~p ~u xyy~yrp~yu }up~yx}p . Qus
|yrp pt }w~ y {}}
py~~z |u{u~yu{z ppp
) xp u y}u~u~y {pwts uqpxrpu| , q ~ y tu|~} us
|yrp~yy {y ~ppp~y ~pwu~y yty r ~p|yyy r{s
{rs }}u~p ~p 10-15% q|u {p y|x
u ys~p| pqprp~y xpy , tu|pu rx}w~} y~usyrp~yu uqpxrpu|uz r| u~quw~u ~p t|wp pq
r {yrz {y xu~y ruu~rrp~y
pr|u~y tpuz ~p~ p~y y p}|y
t y pr}pyu{z {z
{p |u{yrtp , } uqpxrpu|uz r uy
pu r uqpxrpu|u . D| }yrp~y px |qz r~u~yz pp}u , {u xp
t~ {|
ppy y {pwtu y|wu~yu t|w~ q ~yu|~p t|yu|~ y}
|r
pr|u~y ~yx{p~}y }~}y ~ps
x{p}y . . <>~y{ ~u }wu q ~ y
zr ~uutru~~z rx . B }up||
syy qu pp~u~yu . H~pu~y
{r uwy}r) . Bt pu ty~ y~y{ quuuqz~s yp~y . Mut }t
|yy }w~ yruy |y , t~p{ t| quuu~y q|us {|yurp
r~uz rt~s ~pwu~y y tpwu yx}u~y}y x~p{ {p}y y
ry wu|
{r {r |u{yrtp ~u ~ps
wpu up{yr~} {}@u}~ uqpxrpu| p uqpxrpu| Kp{pt~z N-}rz uqpxrpu| p}rxq
wtu~yu} yty r ry
p|~} xru~u ~~s {p , r RRRQ q| ~u q|ptp|y {purp}y , r RRRQ q| ~u r| srz yrt |u{p~p , yru| {
ru|yu~y {|yurp r}spu|~ xptp . Puqpxrpu|y }s
p}pyrp {p{ |utryu }p|z typpx~
pr|u~y , y B) , r 1 : {~}y utrp . Py}u~u~yu IGBT y|y ~uxpryy} 1 p} . Py } ru} }uwt
pqprp~yu} xpy , tu}~y{y , s|p~ p
) . E|y wu pxu} , r
{pu}u r uwy}u
zyr pr{|uqp~yz R
ur
~u{|{ s
y~rur ~pwu~y Puqpxrp~yu |u{yu{z ~usyy . Oq~ p~z uqpxrpu| p rpu~y tryspu| pr|u ~uu y p{yu{y 100% }up~yu{z ~usyy yrty { y | r|~ ~p~u xptryw{y psuspr) . Pp{yu{yz y}u~u~y : tpr|u~yu r yu}u y p~u~yy ~uyx}u~~z pp{uyy{y tryspu|
ur|u
u} tu|u~y ~pwu~y t| su~uyrp~y
pr|y y qu
}~
pq
yrtp ~~s {p , {u
pr|u ~r~}y pp}up}y (}z , yu {|
ppy~~u xpp ~p }t
|~ y|r |
rt~y{r
{
y|rz uy up{yr~z ~usyy : Mrz IN qux p~}pp Oq|p y}u~u~y uqpxrpu|uz ~p {y t ~u{|{y t~px~ y~rur , uqpxrpu| p y ruz yu} @RT SP yxrtrp . V|t~p rtp xpp~uu pr|u~~} spy{} (qux qp~z |y~yy |wyu|~s ~pwu~y yp~y .@prom-electric.ru/articles/1/1/
|