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1. 发明授权

US09281758B1 Constant inrush current circuit for AC input power supply unit 有权
标题翻译：交流输入电源单元的恒定涌流电路
公开(公告)号：US09281758B1
公开(公告)日：2016-03-08
申请号：US14512111
申请日：2014-10-10
申请人： Dell Products L.P.
发明人： Lei Wang , Mehran Mirjafari , Ashish Razdan
IPC分类号： H02M7/06
CPC分类号： H02M7/06 , H02H9/001 , H02M7/062
摘要： A power supply circuit includes a rectifier module configured to rectify an input voltage and a capacitor including a first terminal coupled to the rectifier module. In addition, the power supply circuit includes first and second transistors. The first transistor couples to a second terminal of the capacitor, and the second transistor couples in series to the first transistor. The power supply circuit also includes a resistor, configured to set an inrush current value, in parallel with the second transistor. When coupled to a power supply, the power supply circuit is configured to turn-on the first transistor such that an inrush current flows, at the inrush current value, through the capacitor, first transistor, and resistor. After a delay time, the power supply circuit is configured to turn-on the second transistor such that the inrush current drops to around zero, thus maintaining a low impedance path during steady-state operation.
摘要翻译：电源电路包括被配置为对输入电压进行整流的整流器模块和包括耦合到整流器模块的第一端子的电容器。另外，电源电路包括第一和第二晶体管。第一晶体管耦合到电容器的第二端子，并且第二晶体管串联耦合到第一晶体管。电源电路还包括被配置成与第二晶体管并联设置浪涌电流值的电阻器。当耦合到电源时，电源电路被配置为接通第一晶体管，使得浪涌电流以涌入电流值流过电容器，第一晶体管和电阻器。在延迟时间之后，电源电路被配置为接通第二晶体管，使得浪涌电流下降到大约零，从而在稳态操作期间保持低阻抗路径。

2. 发明授权

US09710051B2 Methods of power supply unit rotating in an information handling system 有权
公开(公告)号：US09710051B2
公开(公告)日：2017-07-18
申请号：US14588176
申请日：2014-12-31
申请人： Dell Products, L.P.
发明人： Mark A. Muccini , Mehran Mirjafari , William Draper , Ashish Razdan , Lei Wang , John Evren Jenne , Stuart Allen Berke
IPC分类号： G06F1/00 , G06F1/32 , G06F1/26 , G06F1/30 , H05K7/20 , G06F1/18
CPC分类号： G06F1/3287 , G06F1/189 , G06F1/263 , G06F1/266 , G06F1/30 , G06F1/3225 , H05K7/1498 , H05K7/20709
摘要： A method of power supply unit rotating in an information handling system (IHS) may include a control unit dividing a power loading of an IHS into N sections, where N corresponds to a number of power supply units coupled to the IHS. The control unit may configure a first power supply unit to an active state and configure one or more remaining power supply units to a suspended state during a first time period. The control unit may configure the first power supply unit to the suspended state and configure a second power supply unit to the active state in response to a second time period being reached. The control unit may rotate the active state among the power supply units in response to sequential time periods being reached. In an embodiment the control unit may rotate the active state sequentially between each of the subsequent power supplies.

3. 发明申请

US20160164429A1 CONSTANT INRUSH CURRENT CIRCUIT FOR AC INPUT POWER SUPPLY UNIT 审中-公开
标题翻译：用于交流输入电源单元的恒定浪涌电流
公开(公告)号：US20160164429A1
公开(公告)日：2016-06-09
申请号：US15043065
申请日：2016-02-12
申请人： Dell Products L.P.
发明人： Lei Wang , Mehran Mirjafari , Ashish Razdan
IPC分类号： H02M7/06
CPC分类号： H02M7/06 , H02H9/001 , H02M7/062
摘要： A power supply circuit includes a rectifier module configured to rectify an input voltage and a capacitor including a first terminal coupled to the rectifier module. In addition, the power supply circuit includes first and second transistors. The first transistor couples to a second terminal of the capacitor, and the second transistor couples in series to the first transistor. The power supply circuit also includes a resistor, configured to set an inrush current value, in parallel with the second transistor. When coupled to a power supply, the power supply circuit is configured to turn-on the first transistor such that an inrush current flows, at the inrush current value, through the capacitor, first transistor, and resistor. After a delay time, the power supply circuit is configured to turn-on the second transistor such that the inrush current drops to around zero, thus maintaining a low impedance path during steady-state operation.
摘要翻译：电源电路包括被配置为对输入电压进行整流的整流器模块和包括耦合到整流器模块的第一端子的电容器。另外，电源电路包括第一和第二晶体管。第一晶体管耦合到电容器的第二端子，并且第二晶体管串联耦合到第一晶体管。电源电路还包括被配置成与第二晶体管并联设置浪涌电流值的电阻器。当耦合到电源时，电源电路被配置为接通第一晶体管，使得浪涌电流以涌入电流值流过电容器，第一晶体管和电阻器。在延迟时间之后，电源电路被配置为接通第二晶体管，使得浪涌电流下降到大约零，从而在稳态操作期间保持低阻抗路径。

4. 发明授权

US10333422B2 Constant inrush current circuit for AC input power supply unit 有权
公开(公告)号：US10333422B2
公开(公告)日：2019-06-25
申请号：US15043065
申请日：2016-02-12
申请人： Dell Products L.P.
发明人： Lei Wang , Mehran Mirjafari , Ashish Razdan
IPC分类号： H02M7/06 , H02H9/00
摘要： A power supply circuit includes a rectifier module configured to rectify an input voltage and a capacitor including a first terminal coupled to the rectifier module. In addition, the power supply circuit includes first and second transistors. The first transistor couples to a second terminal of the capacitor, and the second transistor couples in series to the first transistor. The power supply circuit also includes a resistor, configured to set an inrush current value, in parallel with the second transistor. When coupled to a power supply, the power supply circuit is configured to turn-on the first transistor such that an inrush current flows, at the inrush current value, through the capacitor, first transistor, and resistor. After a delay time, the power supply circuit is configured to turn-on the second transistor such that the inrush current drops to around zero, thus maintaining a low impedance path during steady-state operation.

5. 发明申请

US20170017293A1 METHODS OF POWER SUPPLY UNIT ROTATING IN AN INFORMATION HANDLING SYSTEM 有权
标题翻译：电力单位在信息处理系统中的旋转方法
公开(公告)号：US20170017293A1
公开(公告)日：2017-01-19
申请号：US14588176
申请日：2014-12-31
申请人： Dell Products, L.P.
发明人： Mark A. Muccini , Mehran Mirjafari , William Draper , Ashish Razdan , Wei Wang , John Evren Jenne , Stuart Allen Berke
IPC分类号： G06F1/32 , G06F1/26
CPC分类号： G06F1/3287 , G06F1/189 , G06F1/263 , G06F1/266 , G06F1/30 , G06F1/3225 , H05K7/1498 , H05K7/20709
摘要： A method of power supply unit rotating in an information handling system (IHS) may include a control unit dividing a power loading of an IHS into N sections, where N corresponds to a number of power supply units coupled to the IHS. The control unit may configure a first power supply unit to an active state and configure one or more remaining power supply units to a suspended state during a first time period. The control unit may configure the first power supply unit to the suspended state and configure a second power supply unit to the active state in response to a second time period being reached. The control unit may rotate the active state among the power supply units in response to sequential time periods being reached. In an embodiment the control unit may rotate the active state sequentially between each of the subsequent power supplies.
摘要翻译：在信息处理系统（IHS）中旋转的电源单元的方法可以包括将IHS的功率负载分成N个部分的控制单元，其中N对应于耦合到IHS的电源单元的数量。控制单元可以将第一电源单元配置为活动状态，并且在第一时间段期间将一个或多个剩余电源单元配置为暂停状态。控制单元可以将第一电源单元配置为暂停状态，并且响应于达到第二时间段而将第二电源单元配置为活动状态。控制单元可以响应于达到的连续时间周期而在电源单元之间旋转活动状态。在一个实施例中，控制单元可以在每个后续电源之间顺序旋转活动状态。

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