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Standby mode control system and control method of power management system

A power management system and circuit technology, applied in the direction of data processing power supply, electrical digital data processing, digital data processing components, etc.

Active Publication Date: 2022-05-17
CHENGDU MONOLITHIC POWER SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the CPU exits modern standby mode, the tasks it needs to process are actually not complicated. This "full power boost" state consumes unnecessary power

Method used

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  • Standby mode control system and control method of power management system
  • Standby mode control system and control method of power management system
  • Standby mode control system and control method of power management system

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Embodiment Construction

[0016] Specific embodiments of the present invention will be described in detail below, and it should be noted that the embodiments described here are only for illustration, not for limiting the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one of ordinary skill in the art that these specific details need not be employed to practice the present invention. In other instances, well-known circuits, materials or methods have not been described in detail in order to avoid obscuring the present invention.

[0017] Throughout this specification, reference to "one embodiment," "an embodiment," "an example," or "example" means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in the present invention. In at least one embodiment. Thus, appearances of the phrases "in on...

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Abstract

The invention provides a standby mode control system and control method of a power management system. The power management system includes a core power rail for supplying power to the processor core and a graphics terminal power rail for supplying power to the processor graphics terminal. The power management system includes a VR temperature indicating pin, which is coupled to the temperature indicating pin of the processor. When the core power rail receives the exit PS4 state, the VR temperature indicating pin is pulled down for a preset period of time. Released again, so that the processor works in a low-frequency power-saving mode, and at the same time, the power consumption of the power management system can be saved. If the graphics terminal power rail receives an instruction to exit the PS4 state within a preset time period, the VR temperature indication pin will also be released. Through the method described above, the power consumption of the processor and the power management system can be reduced.

Description

technical field [0001] The present invention relates to power management systems, and more particularly, the present invention relates to standby mode control in a power management system providing a supply voltage in an information processing system. Background technique [0002] When the power management system is applied to an information processing system such as a CPU, the power management system will adjust its own working state according to the working state of the information processing system, thereby improving the working efficiency of the power management system. Specifically, CPU cores may be active or dormant. When the CPU core is in the working state, according to its power level, its working state can be divided into P states from P0 to PN. Generally speaking, the P0 state corresponds to a power state higher than the highest power requestable by the operating system, and the PN state corresponds to the lowest power working state. When the CPU core is in a sl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F1/3234
CPCG06F1/206G06F1/28G06F1/324G06F1/3206Y02D10/00G06F1/3228G06F1/3246
Inventor 杰弗里·朱尔
Owner CHENGDU MONOLITHIC POWER SYST