Abstract:
A blade server module applicable to be inserted into a blade server system. The blade server module includes a motherboard tray having a first connector, a motherboard, an extension dock and an adaptor card having a second connector corresponding to the first connector and electrically connect to the first connector via a cable so as to connect the motherboard and the adaptor card. Compared with prior arts, since utilization of the cable, the blade server module is not restricted by smaller motherboard and more and more concentrative electronic elements. Since arrangement of the cable does not occupy space of the motherboard and connects the motherboard and the adaptor card integrally, signals of the motherboard output via the adaptor card and then link the inserted blade server system. Hence the blade server module of the present invention efficiently decreases overall manufacturing cost and its occupation volume.
Abstract:
A server includes a rack, a slide rail, an input/output (I/O) dock, and a chassis. The rack has a front end and a rear end. The slide rail is disposed in the rack. The I/O dock is located at the rear end of the rack and fixed to an end of the slide rail. The chassis is slidably disposed on the slide rail. Here, the chassis moves relatively to the rack along the slide rail to come into contact with the I/O dock or to be away from the I/O dock.
Abstract:
A rack server including a cabinet, at least one case, at least one replaceable module, and at least one fan is provided. The case is disposed in the cabinet movably and has an opening and a plurality of vents. The replaceable module is moved in or out of the cabinet along a first axis through the opening. The fan is disposed between the cabinet and the case. An air flow generated by the fan flows in or out of the case through the vents. The air flow flows along a second axis in the case. The first axis is substantially perpendicular to the second axis.
Abstract:
A rack server includes a case, a fan module and two lobe frames. The case has a bottom board, two side walls, a first and a second end opposite to each other. The two side walls connect to the bottom board, and each of the side walls has a first and a second fixing portion respectively located at the first and the second end. The fan module is detachably disposed in the case and can optionally switch its orientation so that its outlet is towards the first or the second end. When the two lobe frames are optionally mounted at the two first fixing portions, the case is suitable to be installed into a server rack from the second end; when the two lobe frames are optionally mounted at the two second fixing portions, the case is suitable to be installed into the server rack from the first end.
Abstract:
A case of server includes a chassis, a first top cover, a second top cover, at least a first tray, at least a second tray, an input/output interface circuit board, a mother board, and a third top cover. The first and the second top covers are fixed at two sides of the chassis, where an opening is formed therebetween. The first and the second trays are slidingly disposed at the chassis. The first and the second trays are correspondingly under the second top cover and the first top cover respectively. The input/output circuit boards are disposed on the first trays and the mother boards are disposed on the second trays. The third top cover is located between the first and the second top covers for covering the opening. When the third top cover is detached from the chassis, the electronic components disposed therein can be taken out from the opening.
Abstract:
A sever including a chassis, at least one first tray, at least one second tray, a power supply module, multiple input/output interface circuit boards, and multiple mother boards is provided. The first and second trays are slidably disposed in the chassis, and the first and second trays can be drawn out of the chassis in opposite directions. The power supply module is disposed on a bottom plate of the chassis. The input/output interface circuit boards are disposed on the first tray, respectively. The power supply module is located between two input/output interface circuit boards. Each input/output interface circuit board has multiple input/output interfaces. The mother boards are disposed on the second trays, respectively. The input/output interface circuit boards and the power supply module are correspondingly electrically connected to the mother boards.
Abstract:
A switching regulator circuit is provided for operation as a switching device in a switching mode and as a passive device in a passive mode. A controller is provided for operating the circuit in a switching mode and a passive mode. Additionally, a single transistor is provided for operating as a switching device in the switching mode and for further operating as a passive device in the passive mode.
Abstract:
A motherboard module adapted for connecting pluggably to a case includes a tray, a motherboard, a hard disk cage, and at least one hard disk drive. The tray has a bottom board, a plurality of fixing portions, and a front board. The front board is disposed at a side of the bottom board. The motherboard is disposed on the bottom board. The hard disk cage is fixedly connected to the fixing portions and above the tray, and has a hole corresponding to a hole of the front board. The hard disk drive may be disposed pluggably in the cage.
Abstract:
A printed circuit board (PCB) testing system includes two gear groups, a pair of transmission belts and a driver. The pair of transmission belts geared onto and driven by the two gear groups is parallel and respectively perpendicular to the PCB transmission guideway so as to define a PCB accommodation space therebetween. Each transmission belt includes a plurality of projections. The two gear groups are rotated synchronously and inversely. During operation, the projections on the pair of transmission belts, facing the PCB accommodation space, move down, the projections move away from each other and to the bottom of the corresponding transmission belts, and a PCB supported by the pair of projections drops onto the PCB transmission guideway.
Abstract:
A Class D audio amplifier with output signals capable of being as high as the amplifier's supply voltage. The audio amplifier contains a comparator, a positive output stage, and a negative output stage. The output signal from the positive output stage and the output signal from the negative output stage have opposite polarities and are connected to the comparator's negative and positive input terminals respectively. The Class D audio amplifier has superior transient response, and in turn, provides good sound quality and low THD. The resulting variable switching frequencies also help to alleviate EMI problems.