Schematics don’t do you much good on today’s high-tech electronics. Most high-tech electronics nowadays use custom chips or FPGAs so a schematic that shows all the signals going in and out of a magic proprietary chip won’t do you any good.
A lot of lower-tech components that perhaps use discrete parts, relés, discrete resistors, etc. do have schematics on the inside of the case or available online.
consulte Mais informação: PCB Design
#PCB Design
Tenho uma dúvida técnica sobre gerenciamento térmico com diodos LED de potência média. Vocês ainda usam vias térmicas na placa de circuito impresso?? Sob a pegada do diodo LED ou mesmo ao redor da pegada?
Depende dos limites de aplicação e metas de custo.
The PCB has a pulse oximeter mounted on the surface, and it’s tolerance is 0.6mm. The problem is the pulse oximeter needs to touch the bottom case at all times. How to best mount the PCB in the case without putting too much stress on the pulse oximeter? Will screws with flexible washers be all right? Sadly separating pulse oximeter from main PCB is not an option.
Meu software de design de PCB vem com algumas bibliotecas que incluem alguns componentes comuns, como resistores de chip e capacitores. eu notei, Contudo, que o padrão de pegada terrestre para o 0805 resistor is not identical to the 0805 capacitor. Is there a “best standard”? IPC-7351, IPC-SM-782, or what?
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