A power management system includes a direct current-direct current DC-DC conversion circuit, a first control circuit, a charging circuit, an input port, and an output port. The input port is configured to receive an input voltage. The output port is configured to supply an output voltage to a load. The DC-DC conversion circuit is configured to charge the output port from the input port, to adjust the output voltage. The first control circuit is configured to: obtain a second feedback voltage of the output voltage from the output port, generate a first control signal based on the second feedback voltage and a second reference signal, and supply the first control signal to the charging circuit. The charging circuit charges the output port from the input port based on the first control signal, to supplementally adjust the output voltage.

An example active stylus includes a core comprising: a main cylinder having a first end, a second end; a first supplemental cylinder disposed at the first end of the main cylinder and having a diameter that is larger than a diameter of the main cylinder; a second supplemental cylinder disposed between the first supplemental cylinder and the second end of the main cylinder and having a diameter that is larger than the diameter of the main cylinder; and a wireless charging receive coil configured to transduce flux of a magnetic field generated by a wireless charging transmit coil into electrical current, wherein the wireless charging receive coil is positioned around a longitudinal axis of the main cylinder of the core and between the first supplemental cylinder and the second supplemental cylinder.

A platform module having switchable power for a vehicle including a movable member capable of achieving multiple positions and a position sensor. The movable member includes a plurality of ports configured to provide power. The position sensor is configured to detect a position of the movable member. A first port from the plurality of ports is configured to provide power when the movable member is in a first position; and a second port from the plurality of ports is configured to provide power in response to detecting that the movable member is in a second position. Further, a method is provided for switching power to the platform module.

Described are systems and methods for power management. A processing system includes one or more cores and a connected power management unit (PMU). The PMU is selected from one of: a first level PMU which can power scale a; a second level PMU which can independently control power from a shared cluster power supply to each core of two or more cores in a cluster; a third level PMU where each core includes a power monitor which can track power performance metrics of an associated core; and a fourth level PMU when a complex includes multiple clusters and each cluster includes a set of the one or more cores, the fourth level PMU including a complex PMU and a cluster PMU for each of the multiple clusters, the complex PMU and cluster PMUs provide two-tier power management. Higher level PMUs include power management functionality of lower level PMUs.

A docking board removably coupled to a processor board that does not function when not operatively coupled to the docking board. The docking board sends power to and receive a control signal from the processor board when operatively coupled to the processor board and does not send power and does not receive a control signal when not operatively coupled to the processor board. The docking board is removably coupled to an expansion board that performs a computer function that is not performed by the processor board and the docking board. The docking board sends power and a control signal to the expansion board when the docking board is operatively coupled to the processor board and the expansion board, and does not send power and does not send a control signal to the expansion board when the docking board is not operatively coupled to the processor board and the expansion board.

A storage apparatus includes a control chip, a storage chip, a power interface configured to receive a first voltage, a first variable-voltage circuit. An input end of the first variable-voltage circuit is coupled to the power interface. The first variable-voltage circuit is configured to convert the first voltage into a second voltage, and provide the second voltage to the control chip and a second variable-voltage circuit, where an input end of the second variable-voltage circuit is coupled to the power interface. The second variable-voltage circuit is configured to convert the first voltage into a third voltage and provide the third voltage to the control chip and the storage chip.

Examples are disclosed that relate to allocating power to peripheral device interfaces. One example provides, at a computing device, a method, comprising obtaining a measurement of power consumption by one or more peripheral devices, and based at least on the measurement and on a maximum power tolerance of a power source, allocating to each respective interface a minimum portion of power output from the power source. The method further comprises rendering a remainder of the maximum power tolerance available for consumption by one or more processors, the remainder including the maximum power tolerance minus a sum of the minimum portions, where the remainder and a system portion of power output are available for consumption by the one or more processors, and where a performance attribute of the one or more processors is not throttled while total power consumption does not exceed a threshold power output from the power source.

The present disclosure provides a system and method for reception of BMC data in USB PD communication. The system comprises an analog block and a digital block with the digital block further comprising an idle detection mechanism, and a digital controller for rejecting noise and auto correcting of received BMC signal. The BMC data is typically processed by means of varied functions such as comparison by a threshold comparator on the analog block with programmable reference, and other components of the digital block so as to realize aspects such as noise filtering of BMC data by changing the reference dynamically based on comparison of the width of threshold comparator output signal with average signal widths which is computed during the preamble phase of USB PD communications.

In one embodiment, a method includes applying Forward Error Correction (FEC) to data at power sourcing equipment, transmitting the data and pulse power over a wire pair to a powered device, identifying data transmitted during power transitions between a pulse power on time and a pulse power off time in the pulse power at the powered device, and applying FEC decoding to at least a portion of the data based on said identified power transitions.

An electronic device and method of operating the electronic device are provided. The electronic device includes a housing, a first connector configured to be exposed to outside of the housing and include a first number of pins, a second connector configured to be exposed to the outside of the housing and include a second number of pins, and a circuit configured to provide an electrical connection between the first number of pins and the second number of pins, wherein the first number is different from the second number, and wherein, when the first connector is connected with a first external electronic device and the second connector is connected with a second external electronic device, the circuit is configured to receive analog identification (ID) information through at least one pin among the first number of pins, and generate digital ID information at least partially based on the analog ID information so as to provide the digital ID information to at least one of the second number of pins.