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Консультация № 187910
17.09.2014, 18:16
100.51 руб.
0
2
1
Здравствуйте, уважаемые эксперты! Прошу вас ответить на следующий вопрос:
Какую задачу решают в усилителе два элемента JRC 4558D?
http://s004.radikal.ru/i205/1409/7f/d4fea91a5cb9.jpg
Спасибо.
Какую задачу решают в усилителе два элемента JRC 4558D?
http://s004.radikal.ru/i205/1409/7f/d4fea91a5cb9.jpg
Спасибо.
Обсуждение
18.09.2014, 12:27
общий
18.09.2014, 17:27
Если посмотреть аналогичную схему включения JRC 4558D, в данном случае они "раскачивают" сигнал для оконечных каскадов усилителя.
Без всей схемы блока или полного его названия(чтобы найти схему), что либо говорить трудно.
Без всей схемы блока или полного его названия(чтобы найти схему), что либо говорить трудно.
Об авторе:
Мне безразлично, что Вы думаете о обо мне, но я рад за Вас - Вы начали думать.
Мне безразлично, что Вы думаете о обо мне, но я рад за Вас - Вы начали думать.
21.09.2014, 11:55
общий
это ответ
Здравствуйте, Михеев Олег!
Если Вы обратите внимание на расположение элементов и разводку контактов вокруг ОУ JRC4558D, всё почти одинаковое. Это позволяет предположить(т.к. плата двусторонняя схему востановить не возможно), что это два предварительных усилителя, которые занимаются "раскачиванием"(усилением) слабого входного сигнала до нужного уровня необходимого для работы оконечных касакадов усиления(я думаю, что именно они собраны в одной микросхеме на радиаторе
номинал её тоже не виден).
Итого: у Вас есть стерео-усилитель мощности с предварительными каскадами.
Удачи!
Если Вы обратите внимание на расположение элементов и разводку контактов вокруг ОУ JRC4558D, всё почти одинаковое. Это позволяет предположить(т.к. плата двусторонняя схему востановить не возможно), что это два предварительных усилителя, которые занимаются "раскачиванием"(усилением) слабого входного сигнала до нужного уровня необходимого для работы оконечных касакадов усиления(я думаю, что именно они собраны в одной микросхеме на радиаторе
номинал её тоже не виден).Итого: у Вас есть стерео-усилитель мощности с предварительными каскадами.
Удачи!
Об авторе:
Мне безразлично, что Вы думаете о обо мне, но я рад за Вас - Вы начали думать.
Мне безразлично, что Вы думаете о обо мне, но я рад за Вас - Вы начали думать.
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