Is my power supply OK, and what if it isn’t? Is my microprocessor still working? In part 1, we examined the operation of power supply supervisory ICs that can detect when the supply voltage is too low, and what might happen if so. We will continue that analysis and then consider ways to keep an […]
Power circuits
Power-supply supervisors keep circuits in check: part 1
Is my power supply OK? What about my microprocessor? What if something goes wrong? Simulations show what happens if DC voltage drops. Microprocessors can behave in unwanted ways when their power supplies don’t deliver the expected voltage. Errors can occur, circuits can unexpectedly reset or even go rogue. To prevent such problems, many devices use […]
