US Patent No. 9,883,603

ELECTRONIC PULL TAB FOR BATTERY PROTECTION


Patent No. 9,883,603
Issue Date January 30, 2018
Title Electronic Pull Tab For Battery Protection
Inventorship Thomas Brian Olson, Allen, TX (US)
Alan Robert Ladd, The Colony, TX (US)
Mark Lynn Shipley, Richardson, TX (US)
Assignee TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)

Claim of US Patent No. 9,883,603

1. A battery powered device, comprising:
a battery positioned within a housing of the device;
processing logic configured to perform functions of the device;
an electronic switch coupled between the battery and the processing logic;
a bias circuit coupled to the electronic switch, wherein the bias circuit is configured to hold the electronic switch off
to block current flow from the battery while the device is in a storage state; and

an override circuit coupled to the bias circuit and to a start signal generated by an ON switch, wherein the override circuit
is configured to override the bias circuit in response to activation of the start signal such that the electronic switch is
turned on and allows current to flow to the processing logic in an operational state.