Carlos Martinez is an applications engineer with Intersil Corp., Milpitas, Calif. He received a BSEE from the University of the Pacific, Stockton, Calif., and an MSEE from California State University, Sacramento. Email address: cmartine@intersil.com
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June 9, 2005[Ideas For Design] Multivoltage Supervisor Shuts Down Supply And Monitors Faults
Reliable system operation often depends on the quality of the power supplied. Supply voltages that are too low can cause faulty operation as the microcontroller, FPGA, or ASIC begin to send bad data to memories or peripheral devices. Too high a voltage can damage a device permanently. In addition to providing protection in the event of a voltage fluctuation, users may want to identify the source of the failure. The application must use a voltage regulator plus a pair of FETs...
