Abstract: An electronic component such as a fan-less component for a 5G system having an expansion card and optical transceivers is disclosed. The electronic component has a chassis heat sink having a contact surface and a printed circuit board. A transceiver cage is located on the printed circuit board. The cage receives the optical transceiver. The transceiver cage is in thermal contact with the optical transceiver. The system includes a bracket having a heat sink support with a flat surface in thermal contact with the contact surface of the chassis heat sink. The bracket has a transceiver support having a flat surface in thermal contact with the optical transceiver and supporting the expansion card. A connector support is coupled to the heat sink support and the transceiver support. Heat from the optical transceiver is transmitted through the transceiver, connector, and the heat sink supports to the chassis heat sink.

Abstract: A cooling system for an electronic device includes a central processing unit (CPU), a remote heat sink, and a heat-pipe module. The CPU is mounted on a base of the electronic device, and the remote heat sink receives heat generated by the CPU. The heat-pipe module has a plurality of heat pipes for transferring the heat generated by the CPU to the remote heat sink. Each heat pipe has a circular section extending between a first end and a second end. The first end has a flattened, non-circular shape, and is coupled to the base near the CPU. The second end is coupled to the remote heat sink. The first end of each heat pipe is in direct contact with at least another first end of an adjacent heat pipe.

Abstract: A computing device has a fan housing that includes a dual rotor fan with a first rotor and a second rotor. The computing device also includes a controller communicatively coupled to the dual rotor fan. The controller is operable to detect a failure associated with the first rotor. In response to detecting the failure, the controller is operable to drive the second rotor at a higher speed than a fan-speed at which the second rotor was being driven before the failure.

Abstract: A method of operating a voltage-controlled magnetic anisotropy (VCMA) magnetic tunnel junction (MTJ) device is disclosed. The MTJ device is switchable between a first resistance state and a second resistance state. A first threshold voltage for switching the MTJ device from the second resistance state to the first resistance state is lower than a second threshold voltage for switching the MTJ device from the first resistance state to the second resistance state. The method includes applying a first voltage pulse across the MTJ device with an amplitude having an absolute value equal to or greater than the first threshold voltage and lower than the second threshold voltage, thereby setting the MTJ device to the first resistance state regardless of whether the MTJ device initially is in the first or second resistance state.

Abstract: Cooling devices, such as fans, installed in a computing device can be automatically identified by reading an encoded signal from the cooling device's tachometer signal line. A cooling device can temporarily output an encoded signal in response to a trigger event, such as a power on event (e.g., powering-on of the cooling device). A controller, such as a baseboard management controller (BMC), can receive the encoded signal and decode the signal to determine identification information about the cooling device, such as vendor information and/or model information. The identification information about the cooling device can be stored, logged, output, and/or used to customize the operation of the cooling device.

Abstract: A cooling assembly includes a primary plate, a secondary plate, and a padding layer. The primary plate includes a body, a first arm, and a second arm. The first arm and the second arm of the primary plate extend outwardly in opposite directions from the body of the primary plate. The secondary plate also includes a body, a first arm, and a second arm. The first arm and the second arm of the secondary plate extend outwardly in opposite directions from the body of the secondary plate. The padding layer is inserted between the primary plate and the secondary plate. The padding layer directly contacts a heat-generating electrical component secured between the primary plate and the secondary plate.

Abstract: An electronic device operating in standby mode is provided. The electronic device includes a power supply unit, a cooling device coupled to the power supply unit, at least one electronic component cooled by the cooling device, and a controller coupled to the cooling device. The controller is operable to periodically monitor power data and the temperature of the at least one electronic component in standby mode. The controller is also operable to regulate power supplied to the cooling device based on the monitored power data and the temperature of the at least one electronic component.

Abstract: A computing device has a fan housing that includes a dual rotor fan with a first rotor and a second rotor. The computing device also includes a controller communicatively coupled to the dual rotor fan. The controller is operable to detect a failure associated with the first rotor. In response to detecting the failure, the controller is operable to drive the second rotor at a higher speed than a fan-speed at which the second rotor was being driven before the failure.

Abstract: A system and method to control fan power for an electronic device based on cooling requirements is disclosed. The electronic device includes a power supply unit and a fan coupled to the power supply unit. A controller is coupled to the fan. The device includes at least one electronic component cooled by the fan. The controller is operable to classify the at least one electronic component, and regulate the power supplied to the fan based on the classification of the at least one electronic component.

Abstract: A method and structure for improving efficiency of cooling and temperature uniformity among a plurality of heat generating electronic devices arranged in rows within a housing, such as a GPU server, utilizing a single source of cooling air. The electronic devices are arranged in a plurality of rows, but the heat sinks for the last row are elevated above the heat sinks of the first row so as to occupy different positions within the cooling air stream. In some embodiments the heat sinks of the electronic devices are extended forward so as to reside near the heat sinks of the electronic devices in the first row, but in a different flow path of cooling air. In other embodiments, a thermo siphon refrigeration system is provided for the electronic devices in the last row, and may be provided for the electronic devices in the first row as well.

Abstract: Systems and methods are provided for controlling two or more PSUs of a server system. An exemplary method comprises first determining whether the PSUs are switched on to an AC power source. If the PSUs are found not switched on to an AC power source, the method further comprises restarting the AC power source for the PSUs and completing a software-based recovery process. If the PSUs are found to be switched on to an AC power source, the method further comprises determining whether the PSUs meet a predefined criterion. If the PSUs do meet a predefined criterion, the method further comprises disabling a cold-redundancy mode for the PSUs. If the PSUs do not meet a predefined criterion, the method further comprises starting a wake-up process for a first PSU from a cold-redundancy mode.

Abstract: A method and structure for improving efficiency of cooling and temperature uniformity among a plurality of heat generating electronic devices arranged in rows within a housing, such as a GPU server, utilizing a single source of cooling air. The electronic devices are arranged in a plurality of rows, but the heat sinks for the last row are elevated above the heat sinks of the first row so as to occupy different positions within the cooling air stream. In some embodiments the heat sinks of the electronic devices are extended forward so as to reside near the heat sinks of the electronic devices in the first row, but in a different flow path of cooling air. In other embodiments, a thermo siphon refrigeration system is provided for the electronic devices in the last row, and may be provided for the electronic devices in the first row as well.

Abstract: A system and method to ensure the proper operation of a power supply unit in an electronic device. The electronic device has a chassis with a length and a width that includes one area having electronic components. A system fan is located in the chassis relative to the electronic components to generate air flow in the direction of the length of the chassis through the electronic components. A power supply unit is located in parallel to the system fan relative to the width of the chassis. The power supply unit includes an AC input, a DC output and an internal fan. A controller is operable to control the system fan to reduce the air flow when the power supply unit turns on AC power to the AC input, or wakes up from a cold redundant state and outputs DC power from the DC output.

Abstract: A system and method to ensure the proper operation of a power supply unit in an electronic device. The electronic device has a chassis with a length and a width that includes one area having electronic components. A system fan is located in the chassis relative to the electronic components to generate air flow in the direction of the length of the chassis through the electronic components. A power supply unit is located in parallel to the system fan relative to the width of the chassis. The power supply unit includes an AC input, a DC output and an internal fan. A controller is operable to control the system fan to reduce the air flow when the power supply unit turns on AC power to the AC input, or wakes up from a cold redundant state and outputs DC power from the DC output.

Abstract: Systems and methods are provided for controlling two or more PSUs of a server system. An exemplary method comprises first determining whether the PSUs are switched on to an AC power source. If the PSUs are found not switched on to an AC power source, the method further comprises restarting the AC power source for the PSUs and completing a software-based recovery process. If the PSUs are found to be switched on to an AC power source, the method further comprises determining whether the PSUs meet a predefined criterion. If the PSUs do meet a predefined criterion, the method further comprises disabling a cold-redundancy mode for the PSUs. If the PSUs do not meet a predefined criterion, the method further comprises starting a wake-up process for a first PSU from a cold-redundancy mode.

Abstract: A system and method to control fan power for an electronic device based on cooling requirements is disclosed. The electronic device includes a power supply unit and a fan coupled to the power supply unit. A controller is coupled to the fan. The device includes at least one electronic component cooled by the fan. The controller is operable to classify the at least one electronic component, and regulate the power supplied to the fan based on the classification of the at least one electronic component.

Abstract: A light control system and a light control method thereof are disclosed. The light control system is used for controlling a light-emitting device. The light control system includes an ambient status sensing module, a storage module, a controlling module, and a driver module. The ambient status sensing module is used for sensing an ambient state to generate an ambient state value. The storage module has a database for storing a plurality of parameter values, wherein the plurality of parameter values are corresponded to a plurality of ambient state values. The controlling module is used for searching the plurality of parameter values stored within the database according to the ambient state value, so as to generating a controlling signal. The driver module is used for driving the light-emitting device according to the control signal.

Abstract: An illumination control method and an illumination control system for controlling at least one illuminating device are disclosed. The illumination control method includes following steps: capturing an image through an image capturing device; analyzing a characteristic of the image; and generating a first control signal.

Abstract: A fuel cell pack is disclosed. The fuel cell pack has N membrane electrode assemblies, N?1 connected conductive planes, an independent first electrode conductive layer, and an independent second electrode conductive layer, wherein N is an integer and 2?N?3000. Each connected conductive plane has a first electrode conductive layer and a second electrode conductive layer, wherein the first electrode conductive layer connects to the second electrode conductive layer. The independent first electrode conductive layer is corresponding to the second electrode conductive layer of the N?1th connected conductive plane; the independent second electrode conductive layer is corresponding to the first electrode conductive layer of the 1st connected conductive plane. Each membrane electrode assembly is situated between each first electrode conductive layer and the second electrode conductive layer to form a fuel cell.