Abstract: A charging method and an apparatus are provided. The charging method includes: constant-current charging the rechargeable battery until a voltage of the rechargeable battery reaches a first predetermined voltage; and charging the rechargeable battery with a gradually decreasing charging voltage until a charging process is completed. In this way, the capacity of a battery after being fully charged can be further increased while improving the charging speed.

Abstract: The present disclosure discloses a charging system and method, and a power adapter. The system includes a power adapter and a terminal. The power adapter includes a first rectifier, a switch unit, a transformer, a synthesizing unit, a sampling unit, and a control unit. The control unit outputs a control signal to the switch unit, and adjusts a duty ratio of the control signal according to a current sampling value and/or a voltage sampling value, such that a second alternating current outputted by the synthesizing unit meets a charging requirement. The terminal includes a battery.

Abstract: Provided are a power supply circuit, a power supply device and a control method. The power supply circuit includes a primary rectifier unit, a modulation unit, a transformer, a secondary rectifier and filtering unit, and a control unit. In the power supply circuit, a liquid electrolytic capacitor at a primary side is removed, such that a volume of the power supply circuit is smaller, and is safe to use. Moreover, an output current of the power supply circuit has a periodically changing current value, and the control unit can control the duration of the output current in which the current value is 0.

Abstract: A mobile terminal, a power adapter, and an upgrade method are disclosed. The method includes: downloading software upgrade information of the power adapter by a mobile terminal, the software upgrade information being upgrade software of the power adapter; and transmitting the software upgrade information to a processor of the power adapter by the mobile terminal through a data line in a charging port during a process that the mobile terminal is connected to the power adapter through the charging port to facilitate the processor to upgrade the software of the power adapter according to the software upgrade information. The mobile terminal downloads the software upgrade information, and the most updated software upgrade information is transmitted to the power adapter during the process that the mobile terminal connects to the power adapter, the power adapter is upgraded to solve the problem that the power adapter is difficult to upgrade.

Abstract: The present disclosure discloses a charging system and a charging method and a power adapter. The system includes a battery, a first rectifier, a switch unit, a transformer, a second rectifier, a sampling unit and a control unit. The control unit outputs a control signal to the switch unit, and adjusts a duty ratio of the control signal according to a current sampling value and/or a voltage sampling value sampled by the sampling unit, such that a third voltage with a third ripple waveform outputted by the second rectifier meets a charging requirement. The third voltage is configured to be introduced into the battery.

Abstract: An adapter and a method for charging control are disclosed. The adapter includes a power conversion unit, a voltage feedback unit, a current feedback unit, and a power adjustment unit. The power adjustment unit includes an input end coupled to an output end of the voltage feedback unit to an output end of the current feedback unit, and an output end coupled to the power conversion unit. The power adjustment unit is used to receive the voltage feedback signal and the current feedback signal, and stabilize the output voltage and output current of the adapter when the voltage feedback signal indicates that the output voltage of the adapter has reached the target voltage or the current feedback signal indicates the output current of the adapter has reached the target current.

Abstract: Provided are a power supply circuit, a power supply device and a control method. The power supply circuit includes a primary rectifier unit, a modulation unit, a transformer, a secondary rectifier and filtering unit, a current feedback unit, and a control unit. The power supply circuit removes a liquid electrolytic capacitor at a primary side. Moreover, the control unit may determine a type of a voltage of input alternating current, and set a current limit value in the current feedback unit according to the type of the voltage of the alternating current.

Abstract: Provided are a power supply circuit, a power supply device and a control method. The power supply circuit includes a primary rectifier unit, a modulation unit, a transformer, a secondary rectifier and filtering unit, a current feedback unit, an isolation unit and a control unit. The power supply circuit removes a liquid electrolytic capacitor at a primary side. In the power supply circuit, the liquid electrolytic capacitor at the primary side is removed, such that a volume of the power supply circuit is smaller, and is safe to use. Moreover, the control unit may determine a type of a voltage of input alternating current, and set a current limit value in the current feedback unit according to the type of the voltage of the alternating current.

Abstract: In one embodiment, a method of false sharing detection includes performing, by a device, a plurality of optimization passes on source code, to produce optimized source code and receiving, by the device, selection criteria, The method also includes adding instrumentation to the optimized source code, by the device, after performing the plurality of optimization passes, to produce an instrumented code, where the instrumentation is configured to track memory access addresses and access types of global variables and heap variables in accordance with the selection criteria.

Abstract: A device for tracing a computer program comprises a non-transitory memory having instructions and one or more processors in communication with the memory. The one or more processors execute the instructions to generate trace code from a trace specification program to trace the computer program. The one or more processors calculate values by executing the computer program and the trace code records, in parallel, the values at a predetermined location in execution of the computer program.

Abstract: A terminal device and a charge control method are provided by the disclosure. The terminal device includes a first processor, which includes a first communication interface. The first processor receives a firmware transmitted by a second processor through the first communication interface when the first communication interface is open, and reads control instructions recorded in the firmware when the terminal device is coupled to an adapter, to control the adapter to charge the terminal device, wherein when the first processor stores no firmware, the first communication interface is open; a second processor acquires the firmware from a server, and when the first communication interface is open, transmits the firmware by the first communication interface. Therefore, the improved charge method based on the control of the terminal device is more practical and universal.

Abstract: In one embodiment, a method for predicting false sharing includes running code on a plurality of cores and determining whether there is potential false sharing between a first cache line and a second cache line, and where the first cache line is adjacent to the second cache line. The method also includes tracking the potential false sharing and reporting the potential false sharing.

Abstract: The embodiments of the present disclosure provide a power adapter and a method for upgrading the power adapter. The power adapter includes a radio frequency unit configured to receive firmware upgrade data from a server via an antenna, a micro controller unit configured to upgrade a firmware of the micro controller unit according to the firmware upgrade data received by the radio frequency unit, and a charging interface configured to charge a terminal. In embodiments of the present disclosure, the power adapter includes the radio frequency unit and the antenna, thus the power adapter can communicate with the server via a network, so as to obtain updated firmware upgrade data to upgrade the firmware. That is, in the embodiments of the present disclosure, the firmware of the MCU of the power adapter is upgraded via a network.

Abstract: The present disclosure provides a charging system, a power adapter and a charging method. The power adapter includes a first rectifier, a switch unit, a transformer, a second rectifier, a first current sampling circuit, a first capacitor bank and a second capacitor bank, and a control unit. The control unit is configured to output a control signal to the switch unit, and determine an output current of the power adapter according to a current sampling value sampled by the first current sampling circuit when the power adapter enters a first charging mode, wherein, the control unit is configured to isolate the first capacitor bank when the output current of the power adapter is at a rising edge or a falling edge, and enable the first capacitor bank to work when the output current of the power adapter is at a platform segment.

Abstract: Provided are a charging system, a protection method and a power adapter. The charging system comprises: a battery, a first rectification unit, a switch unit, a transformer, a second rectification unit), a voltage sampling circuit, a control unit, and a comparator unit. The first rectification unit outputs the voltage with the first pulsating waveform. The switch unit outputs the modulated voltage with the first pulsating waveform. The transformer outputs the voltage with the second pulsating waveform. The second rectification unit outputs the voltage with the third pulsating waveform. The control unit adjusts a duty cycle of a control signal, such that the voltage of a third pulsation waveform meets the charging requirement of the battery. The comparator unit applies a comparison signal to the switch unit when the voltage sampling value is greater than the reference voltage value, so as to control the switch unit to forcibly open.

Abstract: Provided are a charging system, charging method, and device, said charging system comprising a battery; a first rectifier, configured to output a first voltage with a first pulsating waveform; a switch unit, configured to modulate the first voltage; a transformer, configured to output a second voltage with a second pulsating waveform; a second rectifier, configured to output a third voltage with a third pulsating waveform, and the third voltage is configured to be applied to the battery charge the battery; a first current sampling circuit, configured to sample current to obtain a current sampling value; and a control unit configured to output the control signal to the switch unit, adjust the amplification factor of the operational amplifier, and adjust a duty ratio of the control signal according to the current sampling value, such that the third voltage meets a charging requirement of the battery.

Abstract: Provided are a power supply circuit, a power supply device and a control method. The power supply circuit includes a primary rectifier unit, a modulation unit, a transformer, a secondary rectifier and filtering unit, a current feedback unit and a current sampling control unit. The power supply circuit removes a liquid electrolytic capacitor at a primary side, and an output current of the power supply circuit has a periodically changing current value. The power supply circuit may determine when the output current is at a peak value based on a feedback voltage outputted by the current feedback unit, such that the power supply circuit may manage and control a size of the peak value of the output current.

Abstract: An adapter and a charging control method are provided, the adapter includes: a power conversion unit, a voltage feedback unit, a current feedback unit, and a power adjusting unit. An input end of the power adjusting unit is coupled to an output end of the voltage feedback unit and an output end of the current feedback unit respectively, and an output end of the power adjusting unit is coupled to the power conversion unit. The power adjusting unit is configured to receive a voltage feedback signal and a current feedback signal, and to stabilize the output voltage and the output current of the adapter when the voltage feedback signal indicates that the output voltage of the adapter reaches a predetermined target voltage or when the current feedback signal indicates that the output current of the adapter reaches a predetermined target current.

Abstract: The present disclosure discloses a charging system, a charging method, and a power adapter. The charging system includes a battery, a first rectifier, a switch unit, a transformer, a second rectifier, a sampling unit, and a control unit. The control unit outputs a control signal to the switch unit, and adjusts a duty ratio of the control signal according to a current value and/or voltage value sampled by the sampling unit, such that a third voltage with a third ripple waveform outputted by the second rectifier meets a charging requirement. The third voltage is applied to the battery.

Abstract: The present disclosure provides a device to be charged and a charging method. The device to be charged includes: a charging interface; a first charging circuit, coupled with the charging interface, configured to receive an output voltage and an output current of an adapter via the charging interface and to directly apply the output voltage and the output current of the adapter to both ends of a plurality of battery cells coupled in series in the device to be charged, so as to perform a direct charging on the plurality of battery cells. With the present disclosure, heat generated in the charging process can be reduced while ensuring the charging speed.