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Power management unit with battery detection controller and switchable regulator block

  • US 8,188,706 B2
  • Filed: 12/10/2007
  • Issued: 05/29/2012
  • Est. Priority Date: 02/16/2007
  • Status: Active Grant
First Claim
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1. A power management unit residing in an electronic device, said power management unit comprising:

  • a battery detection controller coupled to a battery charger and a regulator block, said regulator block being capable of providing power only to said electronic device, said regulator block not providing power to said battery charger;

    said battery detection controller being configured to turn off said regulator block when said battery charger is coupled to an external power source and is not coupled to a battery of said electronic device.

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