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US 2018/0123385 A1Published application
Hardware switch initiated battery current control
AssigneeQUALCOMM Incorporated
InventorsHiroshi AKIYAMA, Eric MIKUTEIT, Hardik PATEL, Todd SUTTON
Life of this patent
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Abstract
A method of enabling a battery hot swap in a mobile device includes detecting when a removable first battery will be removed. The removable first battery may power the mobile device. The method includes reducing a system current to a predetermined level in response to the detecting. The method may further include sourcing current from a second battery when the removable first battery is removed.
Claims25
A method of enabling a battery hot swap in a mobile device, comprising:
- anticipating when a removable first battery will be removed by monitoring a hardware switch, the removable first battery powering the mobile device;
- reducing a system current to a predetermined level in response to the detecting;
- and
- sourcing current from a second battery in response to anticipating the removable first battery will be removed.
1 more element
A battery hot swap circuit, comprising:
- a removable first battery configured to power a mobile device;
- a power control switch coupled to the removable first battery, the power control switch configured to reduce a system current to a predetermined level in response to an indication that the removable first battery will be removed;
- a power management circuit coupled to the power control switch;
- and
- a second battery coupled to the power control switch configured to power the mobile device at the predetermined level the removable first battery is removed.
2 more elements
A battery hot swap circuit, comprising:
- means for anticipating when a removable first battery will be removed by monitoring a hardware switch, the removable first battery powering a mobile device;
- means for reducing a system current to a predetermined level in response to a signal from the means for detecting;
- and
- means for sourcing current from a second battery in response to anticipating the removable first battery will be removed.
1 more element
Dependencies are inferred from the claim text.