ДПФ для Аматора Кф

Схема диапазонных двухконтурных полосовых фильтров приведена на картинке С целью упрощения показаны только два фильтра из четырёх. Коммутация фильтров осуществляется с помощью диодов. На вывод 3 платы ДПФ постоянно подано напряжение +12В. С делителя 2R1 2R2 на катоды диодов подаётся запирающее напряжение около +6В. Для подключения соответствующего полосового фильтра на один из контактов 6....9 необходимо подать отпирающий потенциал +12В. При этом диоды соответствующего ДПФ окажутся открыты, а сам фильтр подключён между входом и выходом платы.



May 04,2023
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PCB
HDI PCB
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FPC/
Rigid-Flex
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2 Layers
1.6mm
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Aluminum
Aluminum
Resin
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Евгений Лисовский View Profile
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