Zaluri eleqtronika gaangariSebis safuZvlebi
Zaluri eleqtronika gaangariSebis safuZvlebi
Zaluri eleqtronika gaangariSebis safuZvlebi
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sur. 3.13. Zabvis mainversirebeli impulsuri stabilizatoris sqema (a)<br />
da droselis Zabvisa da denis grafikebi (b)<br />
tranzistoruli gasaRebis Caketvis Semdeg droselis TviTinduqciis e.m.Z.<br />
gaaRebs VD diods da droselSi dagrovili energia iwyebs ganmuxtvas<br />
datvirTvaze. imis gamo, rom gasaRebis komutaciis Semdeg droselSi gamavali<br />
denis mimarTuleba ucvleli rCeba (diodis arsebobis gamo), datvirTvaze<br />
aRmoCndeba Sesasvlelze miwodebuli Zabvis sawinaaRmdego niSnis Zabva. droselis<br />
ganmuxtvis deni<br />
Ud<br />
(1 − γ)<br />
ig () t =− .<br />
γ<br />
(3.37)<br />
Tu CavTvliT, rom gasaRebis gadarTvis momentSi droselis damuxtvisa da<br />
ganmuxtvis denebi erTnairia, stabilizatoris regulirebis maxasiaTebeli<br />
analizurad ase Caiwereba<br />
U<br />
E<br />
d<br />
γ<br />
=− . (3.38)<br />
1−<br />
γ<br />
rodesac γ= 0,5 , maSin U =−E,<br />
e.i. adgili aqvs Sesavali E Zabvis mxolod<br />
d<br />
niSnis Secvlas (inversias). Tu γ< 0,5 , maSin mainversirebeli stabilizatori<br />
imuSavebs Sesavali Zabvis dadablebis reJimSi, xolo rodesac γ> 0,5 _ Sesavali<br />
Zabvis amaRlebis reJimSi.<br />
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