Qualcomm Incorporated

Dell Products Inc.

Quanqing Zhu

Yuan Chen

Weidong Zuo

Gemma Hui Chen

Guangming Yin

A highly available and modular cooling distribution unit (CDU) includes a heat exchange module and a pair of redundant pump modules, all configured to occupy a designated rack space that is comparable to rack space required for a conventional 1&#xd7;CDU without redundancy. The heat exchange module may be fluidically coupled to one or more rack information handling resources via liquid coolant conduits, manifolds and accompanying valves, sensors, etc. In at least one embodiment, the heat exchange module includes a heat exchanger to dissipate heat from a liquid coolant and a fan assembly to move heated air in proximity to the heat exchanger. Each pump module is coupled to the heat exchange module and configured to circulate liquid coolant through a closed loop circuit that includes the heat exchanger, the liquid coolant conduits and manifolds, and information handling resources.

Modular and highly available cooling distribution unit for information handling systems

An integrated circuit device () includes a first and second differential I/O pins (TRXP/TRXN) and a surge protection circuit. The surge protection circuit includes a protection transistor, a positive surge detection circuit, and a negative surge detection circuit. The protection transistor is connected between the first and second I/O pins and has a gate to receive a control signal (CTRL). The protection transistor is turned on to connect the I/O pins together if the positive surge detection circuit detects a positive surge energy on either of the I/O pins and/or if the negative surge detection circuit detects a negative surge energy on either of the I/O pins. The surge protection circuit provides increased protection for Ethernet device against undesirable energy in a manner that does not adversely affect the performance of the device.

Growing community of inventors

Shanghai, China

Quanqing Zhu