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Power supplying circuit, power supplying system and power supplying method

一种电源供应电路、电源供应系统的技术，应用在电路装置、应急电源安排、数据处理电源等方向，能够解决减少充电电池寿命、增加充电电池负担等问题，达到提升电压转换效率、提升整体运作效益、增加寿命的效果

Active Publication Date: 2015-05-20
WISTRON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a power supply circuit, a power supply system and a power supply method to solve the problem that the voltage conversion efficiency of the narrow DC power supply architecture of the current portable computer is lower than that of the traditional power supply architecture under high load conditions. Poor, and will increase the burden on the rechargeable battery, thereby reducing the life of the rechargeable battery

Method used

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  • Power supplying circuit, power supplying system and power supplying method
  • Power supplying circuit, power supplying system and power supplying method
  • Power supplying circuit, power supplying system and power supplying method

Examples

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Effect test

no. 1 example

[0041] Please refer to figure 1 , figure 1 A functional block diagram of the power supply system provided by the first embodiment of the present invention is shown. The power supply system can be applied to a portable computer device (not shown). In this embodiment, the portable computer device can be, for example, a notebook computer or a tablet computer, but this embodiment is not limited thereto.

[0042] The power supply system includes a power adapter 1 , a battery unit 21 , a power supply circuit 23 and a system load 25 , wherein the battery unit 21 , the power supply circuit 23 and the system load 25 are respectively arranged on a motherboard 2 . The motherboard 2 is set in the portable computer device. The power adapter 1 is coupled to the motherboard 2 . The power supply circuit 23 is coupled between the power adapter 1 , the battery unit 21 and the system load 25 .

[0043] The power adapter 1 is used to rectify the AC voltage output by an AC power source (not sho...

no. 2 example

[0094] From the above embodiments, the present invention can generalize a power supply method, which is suitable for driving the power supply circuit described in the above embodiments, so as to manage the system load in a portable computer device (such as a notebook computer or a tablet computer). power supply method. The power supply circuit can be arranged on the motherboard of the portable computer device. The portable computer device can receive the output of the power adapter 1 through the built-in power input terminal to supply power to the built-in battery unit and system load.

[0095] Please refer to Figure 7 and also refer to figure 1 , Figure 7 A schematic flowchart of a power supply method for a power supply system provided by the second embodiment of the present invention is shown.

[0096] First, in step S100 , the control unit 2333 of the switching unit 23 detects the operating state of the system load 25 according to a detection signal LOAD_DET. The det...

no. 3 example

[0103] From the above-mentioned embodiments, the present invention can also generalize a power supply method, which is suitable for driving the power supply circuit described in the above-mentioned embodiments to manage the system in a portable computer device (such as a notebook computer or a tablet computer). The power supply mode of the load. Please refer to Figure 8 and also refer to figure 1 , Figure 8 A schematic flowchart of a power supply method for a power supply system provided by the third embodiment of the present invention is shown.

[0104] In this embodiment, the control unit 2333 of the switching unit 23 can pre-set and store the power upper limit P_IH and the power lower limit P_IL according to the actual operating power consumption and power loss of the portable computer device. The power upper limit P_IH is greater than the power lower limit P_IL.

[0105] First, in step S201 , the control unit 2333 of the switching unit 23 detects the operating state ...

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Abstract

A power supplying circuit adapted for receiving an output from a power adapter and supplying power to a battery unit and a system load is provided. The power supplying circuit includes a charger unit, a switching unit, and a voltage regulating unit. The charger unit receives a first supplying voltage from the power adapter through a power terminal and charges the battery unit. The switching unit is coupled to the power terminal and the charger unit. The switch unit is configured for receiving the first supplying voltage and a second supplying voltage from the charger unit. The voltage regulating unit is coupled to the switching unit and configured for powering the system load. The switching unit supplies the first supplying voltage to the voltage regulating unit under heavy load condition. The switching unit supplies the second supplying voltage to the voltage regulating unit under light load condition.

Description

technical field [0001] The present invention relates to a power supply circuit, a power supply system and a power supply method, and in particular to a power supply circuit, a power supply system and a power supply method of a portable computer device. Background technique [0002] With the development of technology, portable computing devices equipped with rechargeable batteries, such as laptops and tablets, have been widely used in daily life because they are convenient for users to carry. [0003] Generally, the portable computer device receives external power through an AC-to-DC power adapter or traditional power equipment to supply power to the portable computer device, and uses the external power source to charge the rechargeable battery. The power supply system of the portable computer device generally adopts a traditional power supply architecture or a narrow voltage direct current (NVDC) power supply architecture proposed by Intel (Intel) to supply power to the inte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/26H02J9/06
CPCG06F1/263G06F1/3206H02J9/061
Inventor 陈建良廖建富
Owner WISTRON CORP
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