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US 2011/0215644 A1Published application
Supercapacitor backup power supply with bi-directional power flow
AssigneePsion Teklogix Inc.
InventorsKeith BAKER, Larry FORSYTHE
Life of this patent
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Abstract
A system for providing backup power supply to a device is provided. The system includes a supercapacitor and a single circuit for charging and discharging of a supercapacitor. The single circuit operates with an inductor to provide for charging and discharging of the supercapacitor.
Claims18
1-33. (canceled)
A system for backup power supply, the system comprising:
- a supercapacitor for backing up a potential node;
- an inductor coupled to the supercapacitor and the potential node, the inductor operating in a bi-directional mode to charge and discharge the supercapacitor;
- a first switch and second switch coupled to the inductor, the supercapacitor and the potential node, the first switch being used to modulate flow of current from a power source to the supercapacitor through the inductor when the power source is available at the potential node, and the second switch being used to modulate flow of current from the supercapacitor to the potential node through the inductor when the power source is lost at the potential node.
Dependencies are inferred from the claim text.