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Motorized window treatment

  • US 9,810,020 B2
  • Filed: 04/20/2015
  • Issued: 11/07/2017
  • Est. Priority Date: 03/11/2011
  • Status: Active Grant
First Claim
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1. A motorized window treatment comprising:

  • a covering material;

    a drive assembly configured to raise and lower the covering material;

    a motor drive unit including a motor configured to drive the drive assembly to raise and lower the covering material between a fully-open position and a fully-closed position and to any position intermediate the fully-open and fully-closed positions; and

    at least one battery pack configured to hold at least one battery for producing a battery voltage to power the motor drive unit;

    wherein the motor drive unit is configured to monitor the magnitude of the battery voltage, the motor drive unit further configured to operate the motor at a reduced motor speed in response to the state of charge being reduced below a first predetermined threshold.

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