ÐÀÑ×ÅÒ ÝËÅÌÅÍÒΠÂÛÑÎÊÎ×ÀÑÒÎÒÍÎÉ ÊÎÐÐÅÊÖÈÈ ÓÑÈËÈÒÅËÜÍÛÕ ÊÀÑÊÀÄΠÍÀ ÁÈÏÎËßÐÍÛÕ ÒÐÀÍÇÈÑÒÎÐÀÕ


         

ñ ýìèòòåðíîé êîððåêöèåé ïðèâåäåíà íà


Ðåøåíèå. Ïî èçâåñòíûì
,
,
 è
 èç (4.2), (4.3) ïîëó÷èì:
= 4,75. Ïîäñòàâëÿÿ
 â (4.4) è (4.8) íàéäåì
= 4 Îì;
= 1,03. Ðàññ÷èòûâàÿ
 ïî (4.7) è ïîäñòàâëÿÿ â (4.5), (4.6) ïîëó÷èì:
= 50,5 ïÔ. Ïî èçâåñòíûì
,
,
,
 è
 èç (4.9) îïðåäåëèì:
= 407 ÌÃö. Ïî ôîðìóëàì (4.10), (4.11) íàéäåì
= 71 ïÔ,
= 600 Îì.

4.2. ÏÐÎÌÅÆÓÒÎ×ÍÛÉ ÊÀÑÊÀÄ

Ïðèíöèïèàëüíàÿ ñõåìà ïðîìåæóòî÷íîãî êàñêàäà ñ ýìèòòåðíîé êîððåêöèåé ïðèâåäåíà íà ðèñ. 4.2,à, ýêâèâàëåíòíàÿ ñõåìà ïî ïåðåìåííîìó òîêó - íà ðèñ. 4.2,á.



                                     à)                                                      á)

Ðèñ. 4.2

 ñîîòâåòñòâèè ñ [1], êîýôôèöèåíò ïåðåäà÷è êàñêàäà â îáëàñòè âåðõíèõ ÷àñòîò, ïðè âûáîðå ýëåìåíòîâ êîððåêöèè
 è
 ñîîòâåòñòâóþùèìè îïòèìàëüíîé ïî Áðàóäå ôîðìå À×Õ, îïèñûâàåòñÿ âûðàæåíèåì:

,                                    (4.12)

ãäå   
;

        
 - íîðìèðîâàííàÿ ÷àñòîòà;

        
;

        
;

        
;                                                                                           (4.13)

        
;                                                     (4.14)

        
 - ãëóáèíà ÎÎÑ;                                                                (4.15)

        
;                                                                                  (4.16)

        
;                                                                                   (4.17)

        
;                                                 (4.18)

;                                                                          (4.19)


Ñîäåðæàíèå  Íàçàä  Âïåðåä