Abstract: Systems and methods for adaptive voltage regulation are described. According to an example, a method for operating a charger may include setting, by a charger controller of the charger, a maximum regulation voltage threshold and a minimum regulation voltage threshold, the minimum regulation voltage threshold being a predetermined percentage of the maximum regulation voltage threshold, the predetermined percentage ranging from between about 90% and about 98%; setting, by the charger controller, a charger regulation voltage to the maximum regulation voltage threshold; determining, by a battery monitor, a state of charge of a battery module; and operating the charger at the maximum regulation voltage threshold until the battery module is maximally charged.

Abstract: Systems and methods for using a battery voltage loop under high-current conditions are described. A method for operating a charger, the method includes setting, by a charger controller, a battery voltage threshold; setting, by the charger controller, an on-the-go (OTG) voltage threshold; computing, by a first comparator, a battery voltage error based on a difference between a battery voltage and the battery voltage threshold; computing, by a second comparator, an OTG voltage error based on a difference between an OTG voltage and the OTG voltage threshold; and selecting, by a loop selector, a battery voltage loop when the battery voltage error is smaller than the OTG voltage error.

Abstract: Example implementations include a charging device with a capacitor divider circuit including a plurality of battery state inputs operably coupleable to a plurality of battery devices, and a pulse width modulation (PWM) generator operable to selectively charge the battery devices, a plurality of switching transistors each operatively coupled at a gate terminal thereof to a respective PWM control output of a plurality of PWM control outputs, and a flying capacitor operatively coupled at a first terminal thereof to a first plurality of the switching transistors, operatively coupled at a second terminal thereof to a second plurality of the switching transistors.

Abstract: A method, apparatus and non-transitory computer-readable medium of regulating current within a battery charging circuit. The apparatus including a first current sense resistor configured to sense a first current value at a first port, a second current sensor resistor configured to sense a battery discharge current value output from a battery, and a processor configured to, in response to a short circuit or malfunction at the first current sense resistor, use the battery discharge current value to determine an output current limit and to limit the current at the first port according to the output current limit.

Abstract: Battery charger systems and apparatuses are described. In an example, an apparatus may include a first controller, a first port connected to the first controller, a first charger module connected to the first controller, a second controller, a second port connected to the second controller, and a second charger module connected to the second controller. The first controller may be configured to form a first connection path between the first charger module and the second port via the second controller. The first controller may be further configured to form a second connection path between the second charger module and the first port via the first controller.

Abstract: One or more embodiments are directed to a multiport power delivery architecture that reduces the cost and maximize the power utilization. According to some aspects, embodiments solve problems associated with charging a battery with multiple adapter. Some embodiments enable supplying system load and charging a battery from two or more adapters simultaneously through a single sensing resistor.

Abstract: One or more embodiments are directed to a multiport power delivery architecture that reduces the cost and maximizes the power utilization. According to some aspects, an adapter power add-up feature of the embodiments can combine the power of two or more adapters. The total power can be used to support CPU Turbo events and Quick Charge function. In one aspect, one charger operates as voltage source or current source and the other(s) as current source(s). When the system demand is high enough for all chargers may operate as current sources, the battery will supply the rest of the system demand. The proposed implementation of adapter power add-up feature can enable simple control scheme. Customers can set up BGATE control priorities to determine which charger to handle the BGATE control.

Abstract: Example implementations include a charging device with a capacitor divider circuit including a plurality of battery state inputs operably coupleable to a plurality of battery devices, and a pulse width modulation (PWM) generator operable to selectively charge the battery devices, a plurality of switching transistors each operatively coupled at a gate terminal thereof to a respective PWM control output of a plurality of PWM control outputs, and a flying capacitor operatively coupled at a first terminal thereof to a first plurality of the switching transistors, operatively coupled at a second terminal thereof to a second plurality of the switching transistors.

Abstract: One or more embodiments are directed to a multiport power delivery architecture that reduces the cost and maximizes the power utilization. According to some aspects, an adapter power add-up feature of the embodiments can combine the power of two or more adapters. The total power can be used to support CPU Turbo events and Quick Charge function. In one aspect, one charger operates as voltage source or current source and the other(s) as current source(s). When the system demand is high enough for all chargers may operate as current sources, the battery will supply the rest of the system demand. The proposed implementation of adapter power add-up feature can enable simple control scheme. Customers can set up BGATE control priorities to determine which charger to handle the BGATE control.

Abstract: One or more embodiments are directed to a battery charger that can support multiple battery applications with a single USB type-C port. An architecture according to one or more embodiments includes a single charger transferring power to multiple battery stacks. The architecture according or one or more embodiments includes a plurality of battery stacks each respectively housed in a distinct electronic device. The architecture according to one or more embodiments is expandable from one charger with one USB type-C port coupled to a plurality of battery stacks, to a plurality of chargers with respective USB type-C ports all coupled to a plurality of battery stacks respectively housed in distinct electronic devices.

Abstract: One or more embodiments are directed to a multiport power delivery architecture that reduces the cost and maximize the power utilization. According to some aspects, embodiments solve problems associated with charging a battery with multiple adapter. Some embodiments enable supplying system load and charging a battery from two or more adapters simultaneously through a single sensing resistor.

Abstract: The present embodiments are directed to an improved switched capacitor (SC) converter topology that does not include an inductor. In particular, the topology includes a ladder SC circuit configured as a cap divider, with a gate driving signal being generated to initiate the charging and discharging of the capacitor. In this specific topology, an unregulated output voltage is produced that is a certain fraction of an input voltage of a power source such as a battery. The present embodiments further include a variable frequency modulation (VFM) scheme based on the current-sensing techniques for the gate driving signal generation of the switched capacitor converter.

Abstract: The present embodiments are directed to an improved switched capacitor (SC) converter topology that does not include an inductor. In particular, the topology includes a ladder SC circuit configured as a cap divider, with a gate driving signal being generated to initiate the charging and discharging of the capacitor. In this specific topology, an unregulated output voltage is produced that is a certain fraction of an input voltage of a power source such as a battery. The present embodiments further include a variable frequency modulation (VFM) scheme based on the current-sensing techniques for the gate driving signal generation of the switched capacitor converter.

Abstract: The present embodiments relate generally to switched-capacitor (SC) based DC-DC converters, and more particularly to modulation schemes of cap dividers that include ceramic capacitors such as MLCCs. According to certain general aspects, the present embodiments increase the switching frequency at light loads using variable frequency modulation schemes to reduce the voltage difference across the MLCCs. In these and other embodiments, the acoustic noise generated from the MLCCs can be reduced while maintaining excellent light load efficiency. According to certain aspects, this can be achieved with minimal impact on system performance, cost and size.