Почти Power Bank

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29 Apr 2022

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USB модуль для самодельного повербанка. На его основе вполне можно сделать самодельный power bank просто присоединив аккумулятор. Тестируемый модуль Похожий уже в корпусе Модуль попроще Аккумуляторы 18650 5 В 600ma USB модуль Готовые повербанки Осцилограф Вольтамперметр вернуть часть потраченных денег и всё такое =) Mike M Добавил: Хитрая многоногая микросхема там - это микропроцессор Holtek. Вообще, он много чего мог бы делать, у него даже ШИМ есть, но китайцам лень нормальную программу написать. Два порта USB там, как уже говорили, исключительно для удобства. В шине питания каждого порта стоит измерительный резистор, с которого снимается сигнал непосредственно в процессор. Так процессор узнаёт о том, что нагрузка подключена и жрёт ток. Выходы 2А и 1А одинаковые, измерительные резисторы тоже одинаковые.

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