In preparation of the "final" version of the TPA32XX amplifier ((TPA3245, TPA3251, TPA3255) there's a dedicated AFE module 2-stage design with mail filter-feedback (PFFB).) The implementation of PFFB relating to this module also works for other class D ICs, such as, for example, TPA3116, TPA3118...
OpenBuudai basiert auf OpenHantek von Oliver Haag. https://github.com/OpenHantek/openhantek Derzeit unterstützt: SainSmart DDS120 SainSmart DDS140 (untested) Buudai/Rocktech BM102 Windows, Linux, OSX Github-Projekt: OpenBuudai Github
Experience has shown that most / all bluetooth modules available on the market have problems of various kinds. Is it generating noise, receiving noise, have a poor coverage and/or bad audio quality.
150W constant current sink (60V 10A) - battery capacity Tester
Battery charger on the basis of the BQ24450 (UC3906) with isolated input to load several AGM/GEL cells in series.
On the basis of experience and measurements with TPA3251 boards from TPA3251D2 - 2 x 175W stereo 350W Mono class-D amplifier rises the "TPA3245/51/55 - universal" Board for up to 600W (PBTL Mono).