#360customs Blog
TPA3255 / TPA3251 / TPA3245 universal - one for all
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).
TPA3251 vs. TPA3255 THD according to datasheet
Comparing the THD data (according to data sheet) of TPA3251 and TPA3255 shows that the TPA3255 into 8 Ohms provides same/better values than the TPA3251 into 4 Ohms. It compares with a 4 ohm load, slightly higher values arise...
TPA3251 (TPA3255) aka "model tiny" in aluminium case
Based on the "shrink"mod Board this TPA3251 amplifier variant in an aluminium casing, which also serves the heat dissipation was created.
Cheap capacitors from China / Taiwan / Asia
Many inexpensive electronic circuits from the far East (mainly China) containing capacitors with unknown or little or no appropriate operating parameters, dubious origin or partly subject to fake / fakes / imitations of well-known brands. Here is a list.
TPA3255 – 2 x 325W Stereo 600W Mono Class-D Verstärker
As an extension of the "Akita" family Texas instruments has, due to the TPA3251D2 a "big brother" available - the TPA3255 (HTSSOP44). By adjusting the input voltage range on maximum 53.5V for example, a direct is operating at 10 s Pedelec battery possible. PIN compatibility allows a direct...
CSR LPT SPI programmer (CSR8645, CSR8670)
If you have no CSR USB SPI programmer, but a 'real' LPT port (printer port), the CSR can also be programmed via LPT-SPI.
TPA3250D2 – 2 x 70W (130W Peak) Stereo 189W Mono Class-D Verstärker
In analogy to the TABE family (TAS5630B, TAS5613A, TAS5611A) Texas instruments has, due to the TPA3251D2 a "little brother" with unterseitigem Thermalpad available - the TPA3250D2 (HTSSOP44).
Woofer MHB-12 TSP
Thiele-Small parameters for the NONAME woofer MHB-12, measured and calculated according to a manual bassreflex.de-WinISD Pro 0. 50a7
Agfa Snapscan e52 - Scanwise 2.0.0.9 - timeout / communication error
When using an Agfa Snapscan e52 (also, e10, e20, e25, e26, e40, e42, e50, 1212u, 1236u) with the software Scanwise 2.0.0.x connected via USB (here 2.0.0.9) on newer operating systems (Windows XP, Vista, 7) it comes sometimes to communication problems between the...
