Расчет транзисторного ШИП - Радиоэлектроника - Скачать бесплатно
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? ?????®??? ???S??? ?? ™????????S
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?? ®??©: •???S?????®???S ?S®S???®??©? ????????????©?
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??????????: ???™S?? ©????? ?-41-?
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©. ??S?S???©
1998©.
ВВЕДЕНИЕ
???????®?™????®?S ??S??????®??S?? ® ??S???????®?™?? ?????????©? ?
?S?S?S???©? ???? ™????? ?™?®?S?®?????????? ??S??®????? : ™®????????S?
???®?™?????? ??S?©?? ?S?™? ?????????? ??????? ? ????????S????? ™®?©??S?S?,
?®???????? ??©?????? ??S??????®??S??; ????©? ®???™??©? ???????®?S???;
?S????? ®?S??S? ??????S??????? ? ????? ??S??????????, ®?????©? ??? ,
™?????????? ?S?S©???????? ???????????, ®?????? ???S???????S??????, ?????
????? ? ©???????®, ???????®?? ®?????? ?? ?S??.
?S?S????S???? ??S??®????? ® ????????S? ??S?S?? ?™?®?S?®?????
????????????S ??S??????®??S??, ????????S ® ?S???S ?S?S????S??? ? ???????S??
?? ????????? ?????????©? ??????S???. ®???S ??S??????®??S?? ????????
???®???S ???????- ?????????? (¬??).
ИСХОДНЫЕ ДАННЫЕ :
??????? ? 36 :
?®?©??S?? - ???132?©3
?S??? ????®?S??? - ????S?S™??S
?????S??? ?S?? - ?™???????S ?’220?
®S????S???S ™????S ™®?©??S?? :
|Номинальный момент, |35 |
|Н*М | |
|Номинальная частота |600 |
|вращения, об./мин. | |
|Номинальное |53 |
|напряжение, В | |
|Номинальный ток, А |50 |
|Сопротивление |0,0574 |
|обмотки якоря при | |
|150оС., Ом | |
|Индуктивность |0,422 |
|обмотки якоря, мГн. | |
?S???S?™?S??? ??S?S????? ???? ? ?????®??? ?????
????®?S??? ????????????©? ??S??????®??S?? :
|СС реализовать на основе К555ТМ9 |
|В ПКВИ использовать К555ТВ9 и К555ИЕ18 |
|РИ реализовать в базисе И-ИЛИ-НЕ на 555 серии |
|СРН реализовать на К555КП15 |
|ГИ выполнен на 555 серии по схеме на рис.1. В нижнем по |
|схеме положении движка резистора R4 частота генератора : |
???.1. ?S?S????? ????????®
1. Функциональная схема преобразователя
??©????? ????®??, ?S????™??? ????S?????®??? ?????????????
??S??????®??S?? ™?? ????®?S??? ™®?©??S?S? ?????????©? ???? ? ???????
??????? - ?????????©? ??S??????®??S??, ????????????S ????? ??????©?
®????S?? ?? ?????®?? ??S?S ? ???????? ® ?S???S ????S?S™??©? ????®?S???.
??????? ?????®??S? ?????????????? ??S?? ??S??????®??S?? :
??S??????®??S?? ??™S???? : ??S??????®??S?? ??™? ®? ®?S?S???? ???S?®??
(????), ??S?? ????????????? (??), ??S?? ??®S???®? ???? (???),
?????S™S???S?? ????????® (??), ????????????S ????? ®?1-®?4 ? ?????®S???
™®?©??S?? (?).
??????S? ??S??????®??S?? ??S™????? ??????? :
?? ®??™ ???? ??™????? ??™ ?????©????®???? ? ? ??©??? ?? ??S?? ?????????????
???. ? ®???™? ???? ?? ®??™ ?????S™S???S?? ????????® ??™?S??? ??©??? ?,
™???S??????? ??????©? ??????????????? ??™? ?. ????S ??©?, ??????? ??
????®???? ??©???? ???? ? (???? ??™? ?), ??????S ??????S??S ?1 ?? ??S??
?????????????? ? ??©??? ? ?? ??S?? ??®S???®? ???? ??©???? ?????©????®????
(???). ?? ????®??S? ??????? ????S? ®?1-®?4, ??S??S??®?? ????S?S™??? ?S???
??????.
2. Составление принципиальной схемы преобразователя и расчет параметров ее
элементов.
2.1. Расчет неуправляемого выпрямителя.
??? ??????? ??S??????®??S?? ????™?????? ???????? ???????,
??S??S??®????? ??????S??? +53?, +5?, ±12?. ? ?S??? ??S???S??? ???S? ™??
?????®?? ????? ????S??? ??™S????? ?????????????.
? ???S??®S ™??™?® ??1-??4 ????S??? ?? 122-150-4 ? ???????????? ?????
150 ? ? ???????? ??????S??S? 400 ?, ? ® ???S??®S ??5-??16- ??202?.
????????? ??????? ®1 ?????????? ?? 53? 50?, ??????? ?? ®2 -9? 1?,
??????? ??? ? ?? - ?? 12? 1? ???™??.
??? ???????????? ??????S??? ????S?S?? ???S©??????S ?????????????
?S??? ??142?? 5 ? 12? ????®S???®S???.
2.2. Расчет транзисторного ключа
????®?? ????????????? ¬?? ?®??S??? ????®?? ????????????? ???? (®?),
??????? ??S™???®??S? ????? ???????????? ??????S???S ?-®?, ??™S????SS ??S??
???®???? ? ????S???. ?™?? ?? ®???????® ®? ??S™???®?S? ?? ??????S 2. ??S??
??™S???? ®???™??S ??????????? ??6, ??7, ®????S???S ?? ??S?S ??????©???? ?
???????? ™??™?? (??2); ?????????? ??7 ? ™??™ ??2 ??©?? ??™S????? ?S???????
??????S???? ®????S???? ???????®. ??S™®???™??? ?????™ ®?????S? ??
???????????? ??2-??5. ??S?? ??™S???? ????S ©???®????S???? ???®????
(???????? ??1). ??????S ??S™®???™??©? ??????S?? ? ????????® ????®?S???
????S??®??S??? ?? ??™S????©? ????S??????©? ????????? ?? ??S™?S? ??????.
?????? ????®?©? ????????????©? ????? ????S??®??S??? ??S™?????
???????: ??? ???????®?? ????®?????? ????????® ??’0, ?? ®???™S ????????
??SS? ?S??? ??©??S???? ????, ??????????? ??2-??4 ???S???, ? ?????????? ??5
??????. ??? ???? ?? ????®?? ?S?? ???????????® ??6,??7 ?S?S? ?????????? ???.
??? ??™??S ??©???? ????®?S??? ?? ??1 (??’1) ?????????? ??????????? ??2-??4,
??????S??? ?????????? ??5 ? ?? ????®?? ?S?? ???????????® ??6,??7 ?S?S?
?????????? ????®?? ???, ?.S. ????????????? ???? ?????®?S??? ® ????????
?????????. ???™ ??2, ®????S???? ??????S???? ®???™???? ?????™? ®?, ??????
™?? ???™???? ???? ???? ??©????? ® ¬??.
???. 4. ??S?? ????????????©? ?????
?????®S™S? ????S? ?????S???® ????? ? ®??S?S? S©? ??S?S??? .
???S™S??? ??????S??S ????????? ??????? ?? ?? ????®?? :
??’(1,1...1,2)??™’60?.
????™? ?? ????®?? ??S??S?S??? ?????? ?? ???????? , ®?????S?
?????????? ??7 :
??_???>2*??’2*50?
??????S? ® ???S??®S ®???™??©? ??????????? ?????? ????? ???????
???200??120??2 ?? ??S™?????? ?????S????? :
?X??’1200?
?X??’1200?
?X’2?200“
?21?’30
? ?™??? ??????S ? ?S©? ??™S?????? ™®? ®????S???? ?? ?????????®??
??S?S ???????????, ??? ???®???S? ????S???? ?™?? ?????? ?? ™®? ?????.
???????????? ??? ????S????? ??????????? ??6:
??_???(??6)’??_?(??7)/?21?’50/30’1,66 ?
??????S? ??6 ????™? ?? ??S??®???? :
???_???>??’60 ?
??_???>??_???(??6)
?? ????®?????? ®?????S? ?® 819?.
???S™S??? ?8 ?? ????®?? ??S??S?S??? ??? ?? ???S ??7
€???(??7) ’(0,1...0,3) ??’6,0?
?8’???(??7) /????(€??7)’6/0,08’75 ??
???S™S??? ????S?®?S??? ???????? :
??8’?2???*?8’(0,08)2*75’0,48 ??.
?????©???? ???S™S??? ?7:
???(??6) ’(0,1...0,3) ??’6,0?
?7’???(??6) /????(€??6)’6/0,01’600 ?? ; ???????S?
????™?????S ????S??S ?? ??™? ?24 ?7’620 ??
???S™S??? ????S?®?S??? ???????? :
??7’?2???*?7’(0,01)2*620’0,062 ??.
?6 ®?????S? ????™? ?? ??S??S??? ??S?S?? ?????S??? ????? ®
??????®?®?S??? ?S???S ? ®???????©? ?7.
, ©™S :
( ?? ) ;
?? ????™?????©? ??™? ®?????S?
?’68 ??
???S™S??? ????S?®?S??? ???????? :
??6’?2??*?6’(1,66/12)2*68’1,3 ??.
???S?S? ??????????? ??S™®???™??©? ?????™?. ????S??? ?? ?? ?????????
±12? ?? ??S™?S? ??????. ???S?S? ??4,??5 :
???’??/??’12/68’0,176 ?
???????? ?? ????S????S ??????????? :
???’??2/??’2 ??
????™? ?? ®??S???®????? ????S??S®, ®?????S? ??????????? ?®814?,
?®815?. ? ???S??®S ???????????® ??2-??3 ????S? ?? ?S ?????S?S??????? ????.
?S?????? ?5 ?? ????®?? ?©?????S??? ???? ® ?S?? ?-? ??3 ?? ???®?S 30?“
®?????S?:
?’12/0,03’400 ?? [ 390 ?? ]
???????? ????S???? ?5 :
?’(0,03)2*390’0,351 ??
?S?????? €?4 ®?????S? ????? ?? ????®?? ??S??S?S??? ??? ?? ???S ??3, ?
?3- ™?? ??S??S?S??? ???? ® ?S?? ?-? ??2 ?? ???®?S 10??.
??’12/0,01’1,2 ??? ;
???????S? ?3’1,1 ???, ? ?4’100 ??.
?2, ????™? ?? ???????????©? ???? ?S?S? ?????????? ????????:
????’5?“
?2’12/0,005’2,4 ???
?????S??? ?1 ????????®????? ® ??.
???™ ??1 ??S???????S? ™?? ?®S???S??? ???????? ?S?S????S???
???????????®, ????S??? ?? 209?. ??2??S™??????S? ™?? ???™???? ???? ????
??©?????, ????S???
2.3. Преобразователь кода временных интервалов
? ????®S???®?? ? ????®?S?, ???? ?S????™??? ?S?????®??? ?? ???????S???
?S??? ?555 ? ????????®???S? ?555??18 ? ?555®?9.
??S?? ?S???????? ???? ???®S™S?? ?? ??????S 5, ? ®?S?S???? ™??©?????
?????? - ?? ??????S 6 :
???. 5. ??S?? ????
??S?? ??????S? ??S™????? ??????? :
?? ®??™ ??S?? ??®??™S??? ??3.“ ??™????? ???????? ??? ?? ?????®?©?
©S?S??????. ? ???S™S?S???S ???S??? ®?S?S?? ??S?? ????????????? ®???????®?S?
?????®?S ???????? ? ???, ??????S ??????®??®??? ???©©S? ??2.“ ® ????????S
•1?, ?™??®?S?S??? ??????®?? ??™ ? ® ??S???? ? ????S??? ??????™S??S
????????® ?? ®??™ ??S????? ??4. ®?? ??? ??™ ? ??S™???®?S? ® ™???????S?????
??™S, ??? ??S?S ??S???? ??™S? ???????? ?? ®???????S, ? ® ??? ???S??, ??©™?
™??????S? ™? ????, ??????? ? ®???™? ?S?S????S??? ?2 ®??®????? ® ????™??S
????????S ???©©S? ??2.“, ???????, ® ?®?? ??S?S™?, ???®?S? •0? ?? ®???™S
????S??S? ??????™S??S ?????®?? ????????® ?? ®??™ ??S????? ?S?S? ??S?S??
??3.“. ????™??? ??©??? ?, ™???S??????? ??????©? ??????????????? ??™? ?,
?????S??? ? ®???™? ???©©S?? ??2.“. ??S?S???? ™??©????? ?????? ????
??S™???®?S?? ?? ??????S 6 :
2.4. Распределитель импульсов.
??? ??™??? ® ???S™S?S???S ???S??? ®?S?S?? ????®?????? ??©????® ??
????®S???®????S ????????????S ????? (®?) ????????S??? ?????S™S???S??
????????® (??).
? ????®S???®?? ? ????®?S?, ?S????™??? ?S?????®??? ?? ® ?????S ?-???-
?? ?? 555 ?S???. ?S?????S? ?? ?? ?555??11 ? ™???????S????? ??©??S.
???. 7. ??S?? ??
??©????? ?????? ?? ™? ????S?S™??©? ????®?S??? :
??1’? v1 ???? ? + ? v1 ???? ? + ? v1 ???? ?
??2’? v1 ???? ? + ? v1 ???? ? + ? v1 ???? ?
??3’? v1 ???? ? + ? v1 ???? ? + ? v1 ???? ?
??4’? v1 ???? ? + ? v1 ???? ? + ? v1 ???? ?
??S??, ?S????????? ™????S ??????? ???®S™S?? ?? ??????S 7. ???
????®?S??? ?®S??™??™??? ??????? ????S?S?? ??S?S??? 2?-?? ? ??. ????????S?
?????©??????®????S ?S??????? ® ?S??? ?®S??™??™?® ??????? :
?’?/?’5/0,010’500 ?? ; ®?????S? ???????SS ????S??S ?? ????™?????©?
??™? 510 ??.
????S?®?S??? ?S???????? ???????? :
?’0,012*5’0,0005 ??
2.5. Схема синхронизации :
? ????®S???®?? ? ????®?S?, ??S?? ????????????? ?S????™??? ?S?????®???
?? ?555®?9.
€€???. 8. ??S?? ?????????????
????S? ??????? ??™???S©? ©S?S?????? ??? ’ 32 ???.
????????S? ?????S??? ?? :
? ????S? ?? ??S?S ?????S??? ™®???? ?4 ??????? ??©???? ??®?? :
?’1/(1,4*?1*X1)
????S? ?1’470 ?™, ??©™?
?1’(1/32000)/(1,4*4,7*10-10)’44642 ??, ????S? 47 ???
??S?? ????????????? ?? ??2 ®???????®?S? ???????? ???? ™?? ???? ?
??S???????? ??????? ??©??? ?1 ™?? ??.
2.6. Схема равенства нулю
?? ®??™ ???? ??S?? ???????S? 4-?????™??? ??™ ?????©????®???? ?, ? ??
®???™S ??????S??? ??©??? ?, ????S? ? ’ 1 , S??? ??™ ? ?S ??®S? 0, ? ?’0,
S??? ??™ ?’0. ??©????? ????®??, ??? ™????? ???? ??????? ?? ????????S????S
?555??15.
®.?. ????????S???? ??SS? 8 ®??™?®, ? ??™ ? 4-? ?????™???, ?? ?S????????S??S
®??™? ? ?? ??????? ????? ®????? ®??™? ??™?S? ??©. •0?. ?? ????? ®????? ?1
??™?S? ??????? ? ?????®?©? ©S?S??????, ?? ?2 - ???????? ? ®???™? ?S?®?©?
???©©S?? ™S???S?? ??????? - ????? ??????? ??™?? ????????? ?S?S???????? ®?S
?????™? ??™? ?. ??? ??????? •1? ???? ?? ?? ?™??? ?? ??? ® ??- ???©©S?
?????S??? ?? ?S S™????? - ????? ??????? ???????S??? ??©??? ?. ?S??S??? ®
????™??S ????????S ??- ???©©S? ????????? ?? ?? ??S?? ????.
???.9. ??S?? ??®S???®? ????
3.0. Заключение
? ?S???????S ®?????S??? ™????©? ?????®?©? ???S??? ??? ????S?????®??
????????????? ???????- ?????????? ??S??????®??S?? ™?? ?S©?????®?? ?©??®??
???????? ®???S??? ??®.
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