Systems incorporating microprocessors, FPGAs, ASICs, and other expensive devices can sustain costly damage if the power supply voltages exceed the nominal values. Rather than hoping for the best, good design practice says you should add circuitry that will indicate an overvoltage (OV) condition, take corrective action, take protective action, or perform a combination of all of these functions. The OV indicator can be an audible or visual alarm. Correction can take the form of additional ...
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