Abstract: An uninterruptible power supply (UPS) includes a rectifier, a converter, a first auxiliary power source, and a power distribution unit (PDU). The rectifier receives an alternating current (AC) voltage from an AC power source and converts this to a rectified direct current (DC) voltage which is outputted to the converter. The converter converts the rectified DC voltage to a working voltage and outputs the working voltage to a power supply unit (PSU) through the PDU. The first auxiliary power source outputs a DC voltage to the PSU through the PDU when the AC power source is down.

Abstract: A power supply device for a computing device includes a voltage converter unit and an energy storage unit. The voltage converter unit converts an alternating current (AC) voltage of an external AC power supply to a direct current (DC) voltage and outputs the DC voltage to the computing device. The energy storage unit receives the DC voltage output by the voltage converter unit to charge a rechargeable battery of the energy storage unit as long as the AC voltage of the external AC power supply is higher than a predetermined threshold voltage, and outputs a DC voltage from the rechargeable battery to the computing device if the external AC power supply falls below the threshold voltage.

Abstract: A power supply device for a server system includes a main power supply, a control microchip, a first switch, a trigger, a second switch, and an auxiliary power supply. When a voltage of the main power supply is within a predetermined range, the control microchip keeps the first switch turned off and the trigger keeps the second switch turned on, so that a voltage of the auxiliary power supply is transmitted to the server system via the second switch. When the main power supply is outside the predetermined range, the control microchip turns on the first switch and the trigger turns off the second switch, so that the voltage of the auxiliary power supply is transmitted to ground.

Abstract: A connector assembly includes a jack formed on a circuit board and a plug engaging with the jack. The jack includes a main hole and at least one fool-proof hole extending from a periphery of the main hole. The plug includes a main connecting part corresponding to the main hole and at least one fool-proof part extending from a periphery of the main connecting part. When the plug is inserted into the jack, the main connecting part is tightly received in the main hole, and the at least one fool-proof part is tightly received in the at least one fool-proof hole.

Abstract: An upgrade system for a power supply unit. The power supply unit includes a master interface for outputting power. The upgrade system includes a test board with a slave interface and an upgrade interface, and an upgrade device. Each of the master interface and the slave interface includes four reserved pins. The four reserved pins of the master interface are correspondingly connected to the four reserved pins of the slave interface. The four reserved pins of the slave interface are further connected to the upgrade interface. The upgrade device communicates with the power supply unit through the upgrade interface and the reserved pins of the master interface and the slave interface.

Abstract: A power supply system includes a distribution board, two power supplies, an interface board, and a cable. The interface board comprises two parallel connectors arranged at a center portion of a first side of the interface board, a pair of vents respectively defined beside the two connectors, and a first adapter connector formed at an end portion of the first side. The distribution board is coupled to a second side of the interface board and comprising a second adapter connector arranged thereon. The power supplies are respectively connected to the two connectors and each defines an air vent in alignment with the vents of the interface board. The cable is connected between the first adapter connector and the second adapter connector.

Abstract: A computer power system includes a first power supply unit having a first output end, and a second power supply unit stacked on the first power supply unit and having a second output end adjacent to the first output end, a first power interface board electrically connected to the first output end and perpendicular to an end surface of the first output end, a second power interface board electrically connected to the second output end and perpendicular to an end surface of the second output end, and an electrical connection device. The electrical connection device connects the first power interface board and the second power interface board, such that the first power supply unit and the second power supply unit are electrically connected in parallel to the second power interface board.

Abstract: A power supply system is for supplying power to a number of loads, and includes a number of plugs, a number of power supply modules of the same type, and a number of current distribution modules. The plugs are respectively used for connecting to an external power source, to obtain alternating current. The power supply modules are connected to the respective plugs for converting the alternating current into direct current and providing the direct current to the loads according to the requirements of the loads. Each power supply module includes a positive electrode and a negative electrode, both of which connect to a corresponding load. The current distribution module electrically connects the positive electrodes to each other, and electrically connects the negative electrodes to each other, such that the power supply modules are connected in parallel.

Abstract: A power managing system includes a power supply, a first converter, a second converter, and a complex programmable logic device. The power supply outputs a first verification signal and a first power upon the condition that the power supply receives a power supply on signal from a motherboard. The first and second converters convert the first power to a second power, a third power, and output a second verification signal, a third verification signal respectively. The complex programmable logic device outputs an enable signal to the motherboard to make the motherboard receive the first, the second, and the third powers upon the condition that the complex programmable logic device receives the first, the second, and the third verification signals.

Abstract: A power supply system for supplying power to a number of loads includes a number of power supply modules, a bus, and a control module. The power supply modules each comprises an input terminal receiving an input power and an output terminal outputting an output power, the input terminals of power supply modules having the same input power. The bus is configured for connecting the loads to the power supply modules. The control module calculates the ratio of the total output power of the power supply modules to the input power of one power supply module and controls the connection and the disconnection of the power supply modules according to the ratio.

Abstract: A winding arrangement system of a planar transformer includes a primary winding arranges on a number of first circuit layers of a printed circuit board (PCB), and two secondary winding arranged on a number of second circuit layers. The turns of the primary winding are coupled in series. Each second circuit layer has a winding turn. A first half of the winding turn belongs to one of the two secondary winding. A second half of the winding turn belongs to the other of the two secondary winding. The first and second halves of winding turns on each of the second secondary circuit layers share a common grounded node. All of the first halves of winding turns are coupled in parallel. All of the second halves of winding turns are also coupled in parallel.

Abstract: A winding arrangement system of a planar transformer includes a primary winding arranges on a number of first circuit layers of a printed circuit board (PCB), and two secondary winding arranged on a number of second circuit layers. The turns of the primary winding are coupled in series. Each second circuit layer has a winding turn. A first half of the winding turn belongs to one of the two secondary winding. A second half of the winding turn belongs to the other of the two secondary winding. The first and second halves of winding turns on each of the second secondary circuit layers share a common grounded node. All of the first halves of winding turns are coupled in parallel. All of the second halves of winding turns are also coupled in parallel.

Abstract: In a management method for equipment in multiple locations using a device, an application form is generated according to reservation of an equipment item if the item is available, and it is determined whether another reservation has been made for the equipment item after the schedule time, assigns the equipment item accordingly, locates the equipment item, and issues notification of the status information and location of the equipment on an electronic device.

Abstract: A power managing system includes a power supply, a first converter, a second converter, and a complex programmable logic device. The power supply outputs a first verification signal and a first power upon the condition that the power supply receives a power supply on signal from a motherboard. The first and second converters convert the first power to a second power, a third power, and output a second verification signal, a third verification signal respectively. The complex programmable logic device outputs an enable signal to the motherboard to make the motherboard receive the first, the second, and the third powers upon the condition that the complex programmable logic device receives the first, the second, and the third verification signals.

Abstract: A transformer (10) with high sustain voltage includes a first bobbin (125), a second bobbin (126), a core assembly (127), and an insulating frame (128a). The first bobbin defines a first hollow therein. The second bobbin is coupled to the first bobbin, and defines a second hollow therein. The core assembly includes a first iron core (127a) partly received in the first hollow and a second iron core (127b) partly received in the second hollow. The insulating frame is disposed between the first bobbin and the second bobbin, for insulatively isolating at least one part of the first iron core from the second iron core.

Abstract: A transformer (10) with high sustain voltage includes a first bobbin (125), a second bobbin (126), a core assembly (127), and an insulating frame (128a). The first bobbin defines a first hollow therein. The second bobbin is coupled to the first bobbin, and defines a second hollow therein. The core assembly includes a first iron core (127a) partly received in the first hollow and a second iron core (127b) partly received in the second hollow. The insulating frame is disposed between the first bobbin and the second bobbin, for insulatively isolating at least one part of the first iron core from the second iron core.

Abstract: The present invention provides a structure of an anti-theft tag, and more particularly to an enhanced tag that connects to the tool to prevent theft of the tool. The invention primarily uses a spring part that is formed on one side wall of the pieced part of a tag, and the positioning part of the through slot of the tool can be locked in to the positioning end of the tag. Two locking ends are formed on both ends of the locking component, and the two locking ends can be clipped to both sides of the tag, so that the two locking ends of the locking component can be locked in the clip slot inside the locking slot. The tool and the tag of the present invention are inseparable, which achieves an anti-theft effect.

Abstract: An electronic ink display including a first substrate, at least one metallic pattern layer, plural pixel electrodes, a sealant and a front plane laminate is provided. The pixel electrodes are located on a display area of the first substrate. The metallic pattern layer having a plurality of holes is located on a peripheral circuit area surrounding the display area. The sealant is disposed on the edge of the first substrate and a part of the sealant is overlaid on the metallic pattern layer. The front plane laminate is disposed on one side of the first substrate. The front plane laminate includes a second substrate, a common electrode disposed on the second substrate and an electronic ink material layer disposed between the common electrode and the first substrate.

Abstract: The present invention relates to a stick fuselage of a model aircraft that also combines an aircraft nose and a main wing brace. The stick fuselage adopts a transverse H-beam as a main body. Two sides of the main body have continuously annular bodies as reinforcement structures. The aircraft nose is connected to a head of the stick fuselage, and has a concave spherical surface and a spherical convex to form a spherical pairing. The middle of the stick fuselage has a fuselage sleeve. Two ends of the fuselage sleeve are connected to a hollow ring respectively to form the main wing brace. The main wing brace uses a hollow double ring as a basic configuration for division assembly and accumulation assembly so as to make a monoplane, a biplane and a triplane.

Abstract: A model stick plane featuring a new assembly of stick fuselage, nose and wing deck support; the nose related to a structure incorporated to the front end of the fuselage to be adapted with a power system and in a shape that varies depending on the type of the power system used; the wing deck support connecting the fuselage; and the wing deck related to a structure essentially provided in relation the hollowed loop structure close to where the center-of-gravity position of the stick fuselage.