摘要:
A method and circuit to output adaptive drive voltages within information handling systems is disclosed. According to one aspect of the disclosure, a method of outputting power within an information handling system can include sensing a load current of a power output stage operable to employ more than one drive voltage level. The method can also include comparing the load current to a threshold current setting, and selecting a first output drive voltage from a plurality of input drive voltages in response to comparing the load current to the threshold current setting. The method can also include coupling the first output drive voltage to the power output stage.
摘要:
A method and circuit to output adaptive drive voltages within information handling systems is disclosed. According to one aspect of the disclosure, a method of outputting power within an information handling system can include sensing a load current of a power output stage operable to employ more than one drive voltage level. The method can also include comparing the load current to a threshold current setting, and selecting a first output drive voltage from a plurality of input drive voltages in response to comparing the load current to the threshold current setting. The method can also include coupling the first output drive voltage to the power output stage.
摘要:
Methods and systems are disclosed that may be employed to enable multi-phase voltage regulator (VR) system calibration during the development phase of a multi-phase VR system so as to meet defined accuracy targets and, in one example, to avoid the need for system level calibration in a production environment. The disclosed systems and methods may be further implemented to enable use of multiple sources for and types of integrated power stages (IPstages) in a common multi-phase VR system configuration while still achieving the required current sense accuracy, thus reducing or substantially eliminating continuity of supply (COS) concerns.
摘要:
Systems and methods are disclosed that provide static phase shedding techniques to improve the efficiency of multi-phase voltage regulators within information handling systems by selecting the number of active phases for the multi-phase voltage regulators using circuit identifiers (IDs) for circuitry configured to be powered by the multi-phase voltage regulators, such as central processing units (CPUs). In one embodiment, processor identifier information related to installed CPUs is used to control the voltage regulator (VR) phase number to provide static phase shedding. This VR control can be implemented in a variety of ways, including the use of conventional analog multi-phase VR controllers and/or digital VR controllers. Dynamic phase shedding can also be used in conjunction with this static phase shedding to further reduce the number of active phases when a processor operates in a low power mode.
摘要:
Systems and methods that may be employed to provide a high-reliability power architecture for an information handling system and a physically separable (i.e., detachable) remote system. The information handling system may be, for example, a portable information handling system such as a notebook computer. The remote system may be, for example, a battery-powered input or input/output device such as a wireless keyboard configured to wirelessly communicate input/output information with the information handling system, and that is also configured to be physically and electrically coupled to the information handling system to allow a flow of current to be provided from circuitry of the information handling system to circuitry of the remote system. The power architecture may be implemented using multiple (e.g., two) Uninterrupted Power System (UPS) buses.
摘要:
Systems and methods for interfacing a battery system of a battery-powered keyboard system with main battery components of a battery-powered information handling system to enable a battery charging system of the battery-powered information handling system to charge both the main battery pack of the battery-powered information handling system and the battery pack of the battery-powered keyboard system without the presence of a separate stand-alone battery charger in the battery-powered keyboard system, and/or so that the keyboard battery of the battery-powered keyboard system may be used to supplement the main battery of the battery-powered information handling system such as in case of emergency power loss or to extend total battery life for running the information handling system.
摘要:
A method and system are disclosed for improving the efficiency of a battery supplied power supply system. More particularly, a method and system is provided for improving the voltage regulation efficiency for a system in which the input voltage that is to be regulated may vary widely. In the techniques disclosed, the voltage supply that is utilized for the drive control circuitry of the voltage regulators is varied in relation to variations in the input voltage. Thus in one embodiment, the voltage supply that is utilized for the circuitry that drives a control terminal of the output transistor of the regulation circuitry may be varied in relation to variations in the input voltage. For example, an inverse relationship may be established between the input voltage level and the voltage level that is used for the gate drive circuitry that controls the gates of regulator output transistors.
摘要:
Systems and methods for interfacing a battery system of a battery-powered keyboard system with main battery components of a battery-powered information handling system to enable a battery charging system of the battery-powered information handling system to charge both the main battery pack of the battery-powered information handling system and the battery pack of the battery-powered keyboard system without the presence of a separate stand-alone battery charger in the battery-powered keyboard system, and/or so that the keyboard battery of the battery-powered keyboard system may be used to supplement the main battery of the battery-powered information handling system such as in case of emergency power loss or to extend total battery life for running the information handling system.
摘要:
In a first embodiment, an information handling system (“IHS”) includes a processor. The IHS also includes a power rail coupled to the processor. The power rail supplies power, from a power adapter, to the processor. The IHS further includes a battery, that in response to a voltage fall on the power rail, supplies supplemental power to the power rail. In a second embodiment, an IHS includes a processor. The IHS also includes a power rail coupled to the processor. The power rail supplies power, from a power adapter, to the processor. The IHS further includes a battery, that in response to a voltage rise on the power rail, suppresses or sinks power supplied by the power adapter to the power rail.
摘要:
Methods and systems are disclosed that may be employed to enable multi-phase voltage regulator (VR) system calibration during the development phase of a multi-phase VR system so as to meet defined accuracy targets and, in one example, to avoid the need for system level calibration in a production environment. The disclosed systems and methods may be further implemented to enable use of multiple sources for and types of integrated power stages (IPstages) in a common multi-phase VR system configuration while still achieving the required current sense accuracy, thus reducing or substantially eliminating continuity of supply (COS) concerns. The disclosed methods and systems may also be implemented to improve accuracy of current sense in a manner that improves VR system performance, power saving and reliability.