US 2019/0356135 A1Published application

Quick battery charging

AssigneeSling Media Pvt Ltd

InventorArun Pulasseri Kalam

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Abstract

Novel techniques are described for quick charging of batteries. For example, a battery charging system can include a battery charger integrated circuit (IC) and a fuel gauge IC coupled between a battery and a central processor to execute a stored multi-phase battery charging protocol. Executing the protocol can include charging the battery in a constant current regulation phase by applying a constant charge current until a charge voltage (e.g., measured by the battery charger IC) reaches a defined regulation voltage that is higher than the nominal voltage of the battery plus the voltage drop across series components of the battery. Protection of the battery during such charging includes monitoring a present relative state of charge (RSOC) of the battery (e.g., by the fuel gauge IC) to detect when the present RSOC reaches a defined regulation RSOC level that may be substantially 100 percent of the charge capacity of the battery.

Claims20

Dependent claims

A system for quick battery charging, the system comprising:

a battery charger integrated circuit (IC) to couple with a charging interface of a battery to deliver charging to the battery;
a non-transient memory having a battery charging protocol stored thereon that defines a regulation current level, a regulation voltage level, and a regulation relative state of charge (RSOC) level, wherein the battery charging protocol comprises a plurality of phases including a constant current regulation phase and a charge termination phase;
and
a central processor, coupled with the battery charger IC and the fuel gauge IC, to execute at least a portion of the battery charging protocol by:
receiving a monitor signal indicating a present RSOC of the battery;
detecting, responsive to the monitor signal, whether the present RSOC is at the regulation RSOC level;
directing the battery charger IC to charge the battery according to at least the constant current regulation phase while the present RSOC is not at the regulation RSOC level according to the detecting;
and
directing the battery charger IC to proceed to the charge termination phase in response to the present RSOC being at the regulation RSOC level according to the detecting.

6 more elements

A method for quick battery charging, the method comprising:

executing at least a portion of a battery charging protocol that defines a regulation current level, a regulation voltage level, and a regulation relative state of charge (RSOC) level, the battery charging protocol comprising a plurality of phases including a constant current regulation phase and a charge termination phase, such that the executing comprises:
receiving a monitor signal indicating a present RSOC of a battery;
detecting, responsive to the monitor signal, whether the present RSOC is at the regulation RSOC level;
directing charging of the battery according to at least the constant current regulation phase while the present RSOC is not at the regulation RSOC level according to the detecting;
and
directing termination of the charging of the battery according to the charge termination phase in response to the present RSOC being at the regulation RSOC level according to the detecting.

3 more elements

A non-transitory processor-readable medium comprising processor-readable instructions that cause a set of processors of a battery charging system to execute at least a portion of a battery charging protocol that defines a regulation current level, a regulation voltage level, and a regulation relative state of charge (RSOC) level, the battery charging protocol comprising a plurality of phases including a constant current regulation phase and a charge termination phase, such that executing the at least a portion of a battery charging protocol comprises:

receiving a monitor signal indicating a present RSOC of a battery;
detecting, responsive to the monitor signal, whether the present RSOC is at the regulation RSOC level;
directing charging of the battery according to at least the constant current regulation phase while the present RSOC is not at the regulation RSOC level according to the detecting;
and
directing termination of the charging of the battery according to the charge termination phase in response to the present RSOC being at the regulation RSOC level according to the detecting.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/983,464Filed 18 May 2018
Published: 21 Nov 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

H02J 7/947
In response to battery current: in response to integrated charge or discharge current
H02J 7/04
For charging batteries from AC mains by converters: regulation of charging current or voltage
H02J 7/92
Regulation of charging or discharging current or voltage: with prioritisation of loads or sources
H02J 7/933
Regulation of charging or discharging current or voltage: the cycle being controlled or terminated in response to electric parameters

Family

US 10,608,455 B2Related patent
US 2019/0356135 A1This patent

From the US filing history. Foreign family members aren’t listed.

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