View source for 18399724. APPARATUS AND METHOD FOR LIMITING INRUSH CURRENT AND EXTENDING HOLD-UP TIME IN AN AC-DC POWER CONVERTION APPARATUS simplified abstract (Huawei Technologies Co., Ltd.)

=APPARATUS AND METHOD FOR LIMITING INRUSH CURRENT AND EXTENDING HOLD-UP TIME IN AN AC-DC POWER CONVERTION APPARATUS=


==Organization Name==

[[:Category:Huawei Technologies Co., Ltd.|Huawei Technologies Co., Ltd.]]


[[Category:Huawei Technologies Co., Ltd.]]

==Inventor(s)==

[[:Category:Luyu Wang of Shenzhen (CN)|Luyu Wang of Shenzhen (CN)]][[Category:Luyu Wang of Shenzhen (CN)]]

[[:Category:Shuyu Ou of Shenzhen (CN)|Shuyu Ou of Shenzhen (CN)]][[Category:Shuyu Ou of Shenzhen (CN)]]

[[:Category:Chao Wu of Dongguan (CN)|Chao Wu of Dongguan (CN)]][[Category:Chao Wu of Dongguan (CN)]]

[[:Category:Wenbo Sun of Dongguan (CN)|Wenbo Sun of Dongguan (CN)]][[Category:Wenbo Sun of Dongguan (CN)]]

[[:Category:Grover Victor Torrico-bascop� of Kista (SE)|Grover Victor Torrico-bascop� of Kista (SE)]][[Category:Grover Victor Torrico-bascop� of Kista (SE)]]

==APPARATUS AND METHOD FOR LIMITING INRUSH CURRENT AND EXTENDING HOLD-UP TIME IN AN AC-DC POWER CONVERTION APPARATUS - A simplified explanation of the abstract==


This abstract first appeared for US patent application 18399724 titled 'APPARATUS AND METHOD FOR LIMITING INRUSH CURRENT AND EXTENDING HOLD-UP TIME IN AN AC-DC POWER CONVERTION APPARATUS

==Simplified Explanation==

The patent application describes a power converter system with power factor correction and energy storage capabilities.

* Power factor correction stage receives grid power and produces DC bus power
* DC-DC converter stage receives DC bus power and produces DC output power
* Energy storage provided by two capacitors in series with a switching device for control
* During start-up, energy is transferred from the smaller capacitor to the larger one
* During operation, the larger capacitor stores energy for the DC bus power
* Hold-up time is extended by transferring energy back to the smaller capacitor when grid power is disconnected

== Potential Applications ==
This technology could be applied in various power conversion systems, such as renewable energy systems, electric vehicles, and industrial power supplies.

== Problems Solved ==
This technology addresses the issue of power factor correction and energy storage in power converters, improving efficiency and reliability of the system.

== Benefits ==
The benefits of this technology include improved power quality, increased energy efficiency, and extended hold-up time during power outages.

== Potential Commercial Applications ==
Potential commercial applications of this technology include grid-tied inverters, battery chargers, uninterruptible power supplies (UPS), and electric vehicle charging stations.

== Possible Prior Art ==
One possible prior art for this technology could be similar power converter systems with energy storage capabilities, but with different methods of power factor correction and control.

=== Unanswered Questions ===

=== How does this technology compare to other power converter systems on the market? ===
This article does not provide a direct comparison with other power converter systems in terms of efficiency, cost, or performance.

=== What are the specific technical specifications and requirements for implementing this technology in different applications? ===
The article does not detail the specific technical specifications or requirements for integrating this technology into different power conversion systems.


==Original Abstract Submitted==

An AC-DC power converter has a power factor correction stage that receives grid power and produces DC bus power. A DC-DC converter stage receives the DC bus power and produces a DC output power. Energy storage is provided by a larger capacitance value first capacitor and a smaller capacitance value second capacitor coupled in series across the DC bus power with a switching device coupled in parallel with the smaller second capacitor. During converter start-up, the switching device is turned off and inrush current is controlled by transferring energy from the second capacitor to the first capacitor. During operation the switching device is turned on and the first capacitor provides energy storage for the DC bus power. When grid power is disconnected, hold-up time is extended by turning the switching device off and transferring energy from the first capacitor to the second capacitor.



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