• Microcontroller Brown-out detection
  Most of microcontrollers have On-chip Brown-out detection, which monitors supply voltage level while operating. Brown-out circuit is simply nothing more than comparator, which compares supply voltage to a fixed trigger level.
  Mostly all microcontrollers have built in Brown-out detection (BOD) circuit, which monitors supply voltage level during operation. BOD circuit is nothing more than comparator, which compares supply voltage to a fixed trigger level.If microcontroller doesn’t have On-Chip Brown-Out detector, then there can be external circuit used :The circuit above illustrates the brown out detect
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• USB powered power amplifier for your PC
  This can be good solution forr those who have PC with integrated sound card built in motherboard. The main problem is that outputs those sound cards are designed for active acoustic systems, this means that speakers must have power amplifier built in. If you need to connect a headphones, sometimes it might be not enough to provide required sound level.
  I faced this article when I was looking for simple solution how to increase the output of my integrated sound card of my PC. I don’t know why, but the sound level of it decreased so I can’t normally listen with my headphones. So this article is about how to increase the power of your [...]
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