×

Apparatus and methodology for battery backup circuit and control in an uninterruptible power supply

  • US 9,490,663 B1
  • Filed: 07/16/2012
  • Issued: 11/08/2016
  • Est. Priority Date: 07/16/2012
  • Status: Active Grant
First Claim
Patent Images

1. A system configured to provide an uninterruptible power supply, comprising:

  • a power converter component that concurrently provides power to a load and charges a battery by using a primary power source;

    a backup-charger component, including;

    a first power storage element coupled to an output of the power converter component and a protection component;

    a second power storage element coupled in parallel with the battery and the protection component;

    a backup device that is coupled to the battery and the power converter component, the backup device including a voltage converter and being configured to provide power from the battery to a load when a primary power failure is detected in the power converter component, wherein the second power storage element is coupled to the backup device, the backup device controllably delivers power from the battery to the load when a primary power failure is detected in the power converter component, anda charging device that is coupled to the backup device, the battery, the power converter component, the protection component, and the first power storage element and configured to charge the battery from power provided by the power converter component, wherein the first power storage element coupled to the charging device stores a portion of power supplied by the power converter component to vary a rate of transfer of power supplied by the power converter component to the battery; and

    the protection component, including a set of serially connected transistors coupled in series to the battery that controls charging current and discharging current of the battery by operating in a linear region of the transistors.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×