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Power supply circuit and system and method thereof

A technology of power supply circuit and power supply method, which is applied to circuit devices, DC network circuit devices, electrical components, etc., can solve problems such as the inability to meet terminal current requirements.

Active Publication Date: 2016-06-15
JOULWATT TECH ZHANGJIAGANG INC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a power supply circuit and its system and method to solve the problem that the current demand of the terminal cannot be met when the terminal demand current of the power supply circuit is greater than the power supply current of the adapter, and the circuit structure is simple and the cost is low

Method used

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  • Power supply circuit and system and method thereof
  • Power supply circuit and system and method thereof
  • Power supply circuit and system and method thereof

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Embodiment Construction

[0042] refer to figure 1 and figure 2 , when the power supply 10 of the traditional power supply system is composed of two-stage circuits, although the terminal demand current is greater than the supply current of the adapter, the energy storage unit of the power supply supplies supplementary power to the terminal through the discharge unit. However, this solution has complex circuits and many components. In particular, the circuit requires two inductors, resulting in high cost, and the charging unit and discharging unit are connected in cascade, resulting in low circuit efficiency.

[0043] refer to image 3, when the power supply device 10 of the traditional power supply system is composed of a single-stage circuit, and the charging unit and the discharging unit are integrated in the same charging and discharging unit, although this circuit structure is simplified, and the adapter 11 can supply power to the terminal 13, it cannot be realized The adapter 11 and the energy...

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Abstract

The invention relates to a power supply circuit and a system and method thereof. The power supply circuit comprises a first voltage sampling unit, a logic control and driving unit, an energy storage unit, a first inductor, a first switching tube and a second switching tube, wherein the first voltage sampling unit is used for sampling an input voltage of the power supply circuit, and the logic control and driving unit is used for receiving a first voltage sampling signal and controlling the working conditions of the first switching tube and the second switching tube according to the first voltage sampling signal. In the circuit, the energy storage unit can supply power to a load when relatively large current is required by the load.

Description

technical field [0001] The invention relates to a power supply circuit, in particular to a power supply circuit and its system and method. Background technique [0002] A general power supply system includes an adapter, a power supply device and a terminal. There are two types of power supply equipment in the prior art: a two-stage power supply circuit and a single-stage power supply circuit. [0003] Among them, the two-stage power supply circuit such as figure 1 and figure 2 As shown, the power supply device 10 includes a charging unit 101 , a discharging unit 102 and an energy storage unit 103 . The charging unit 101 is a first-stage circuit of the power supply device, and the discharge unit 102 is a second-stage circuit of the power supply device. The adapter 11 charges the energy storage unit 103 through the charging unit, and the energy storage unit 103 can also supply power to the terminal 13 through the discharge unit 102 . When the power supply 10 is connected...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J1/00H02J1/10
CPCH02J1/00H02J1/10
Inventor 窦训金徐爱民张安羊任远程黄必亮周逊伟
Owner JOULWATT TECH ZHANGJIAGANG INC LTD