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Circuits Energy Storage Backup & Holdup Supply
Circuits Energy Storage Supercapacitor Charging
Circuits Power Management Supercapacitor Chargers

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Power Backup System Using Supercapacitors

View Full Size Image View Original Design Note Power Backup System Using Supercapacitors

This circuit shows a power holdup system that incorporates a supercapacitor stack with the capacity to provide standby power of 165mW for about 45 seconds in the absence of battery power. An LDO converts the output of the supercapacitor stack to a constant voltage supply during backup mode.



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