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Power control techniques for an electronic device

  • US 9,018,893 B2
  • Filed: 03/18/2011
  • Issued: 04/28/2015
  • Est. Priority Date: 03/18/2011
  • Status: Active Grant
First Claim
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1. A power management method for an electronic device having a primary battery and a secondary battery, the method comprising:

  • operating the electronic device in a first power phase during which only the primary battery provides energy to support all functions of the electronic device, and during which the secondary battery is disconnected such that the secondary battery provides no energy to support functions of the electronic device;

    operating the electronic device in a second power phase during which the primary battery provides energy to support only basic functions of the electronic device, and during which the secondary battery provides energy to support only high power functions of the electronic device; and

    operating the electronic device in a third power phase during which only the secondary battery provides energy to support all functions of the electronic device, and during which the primary battery is disconnected such that the primary battery provides no energy to support functions of the electronic device.

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