×

Battery pack identification scheme for power tool systems

  • US 9,209,642 B2
  • Filed: 02/17/2014
  • Issued: 12/08/2015
  • Est. Priority Date: 04/07/2010
  • Status: Active Grant
First Claim
Patent Images

1. A battery pack system, comprising:

  • a set of battery packs, the set of battery packs including L battery packs, each battery pack of the set of battery packs including a different number M of battery cells, where 2≦

    M≦

    N and where L≧

    2 and N>

    L, where N is a whole number;

    each battery pack of the set of battery packs including a set of battery terminals, each set of battery terminals including O battery terminals, where O<

    N;

    each set of battery terminals including a first subset of battery terminals, wherein each first subset of battery terminals has a different number P of battery terminals, where 0≦

    P<

    O, and each battery terminal of the first subset of battery terminals is coupled to a first battery reference node, andeach set of battery terminals including a second subset of battery terminals, each second subset of battery terminals including Q battery terminals, where Q=O−

    P, and each battery terminal of the second subset of battery terminals is coupled to a battery measurement node.

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