Methods and apparatus for battery current monitoring
AssigneeTahoe Research, Ltd.
InventorsDevin Cass, Jorge Zabaco, George D. Beckstein, III
Life of this patent
Estimating the term…
Abstract
Methods and apparatus are disclosed for battery current monitoring. An example apparatus includes a haptic device, an isolation switch to deliver power from a battery to the haptic device, an integrator to integrate a signal based on a current from the battery to the haptic device to generate an integrator output, and control logic to control the isolation switch based on a comparison of the integrator output to a threshold.
Claims20
An apparatus to prevent injury from a wearable device, the apparatus comprising:
- a haptic device;
- an isolation switch configured to interrupt delivery of power from a battery to the haptic device;
- an integrator configured to integrate a signal based on a current from the battery to the haptic device to generate an integrator output;
- and
- control logic to control the isolation switch based on a comparison of the integrator output to a threshold, wherein after activating the isolation switch to interrupt the current, the control logic is configured to start a delay period before resetting the isolation switch.
A method of preventing thermal injury from a wearable device, the method comprising:
- generating a first output by integrating a signal representative of a current from a battery to a haptic device;
- generating a second output by comparing the first output to a threshold;
- opening an isolation switch to interrupt the current in response to the second output;
- and
- starting a delay period before closing the isolation switch after having opened the isolation switch.
A non-transitory computer-readable medium comprising instructions that, when executed, are configured to cause a processor coupled with an apparatus to prevent injury from a wearable device by:
- generating a first output by integrating a signal representative of a current from a battery to a haptic device;
- generating a second output by comparing the first output to a threshold;
- opening an isolation switch to interrupt the current in response to the second output;
- and
- starting a delay period before closing the isolation switch after having opened the isolation switch.
Dependencies are inferred from the claim text.