公开(公告)号：WO2018148483A1

公开(公告)日：2018-08-16

申请号：PCT/US2018/017533

申请日：2018-02-09

Applicant: MICROCHIP TECHNOLOGY INCORPORATED

Inventor： KAESTNER, Clemens

IPC: H02J1/14 ,  G06F1/26

Abstract: An apparatus includes a processor, USB connectors, and variable resistors or variable current sources. The processor is configured to read and load instructions causing the processor to dynamically adjust a current consumed by a given connector through adjustment of a related variable resistor or variable current source.

公开(公告)号：WO2015171463A1

公开(公告)日：2015-11-12

申请号：PCT/US2015/028878

申请日：2015-05-01

Applicant: MICROCHIP TECHNOLOGY INCORPORATED

Inventor： KAESTNER, Clemens

IPC: G06F1/26 ,  G06F1/28

CPC classification number: G06F1/3287 ,  G06F1/266 ,  G06F1/28 ,  G06F1/3253

Abstract: A system, method and device for providing over-current protection to USB ports comprised in a USB hub, whereby a single switch is used to control the power supply to one or more groups of U SB ports based on determinations whether the current drawn by a group of USB ports has exceeded a predefined current limit. Embodiments provide the cost savings associated with gang mode power port switching and the reduced stress on USB components and individualized protection of USB ports associated with individual mode power switching. Embodiments utilize a plurality of current measurement units to measure the current drawn by each group of USB ports supported by a switch and further utilize a power port control logic unit to control the switch based on whether the current measurements have exceeded a current limit.

Abstract translation: 一种用于向包括在USB集线器中的USB端口提供过电流保护的系统，方法和装置，由此，单个开关用于根据确定是否由一个或多个U SB 一组USB端口已超过预定义的电流限制。 实施例提供了与组合模式电源端口切换相关联的成本节省以及对USB组件的减小的应力以及与各个模式电源切换相关联的USB端口的个性化保护。 实施例利用多个电流测量单元来测量由开关支持的每组USB端口所绘制的电流，并进一步利用电源端口控制逻辑单元基于电流测量是否超过电流限制来控制开关。