Abstract: A power supply unit supplies power to a load, and the power supply unit includes a power factor corrector, a DC conversion module, and an isolated conversion module. The power factor corrector is plugged into a first main circuit board and converts an AC power into a DC power. The DC conversion module is plugged into the first main circuit board and converts the DC power into a main power. The isolated conversion module includes a bus capacitor, the bus capacitor is coupled to the DC conversion module through a first power copper bar, and coupled to the power factor corrector through a second power copper bar. The first power copper bar and the second power copper bar are arranged on a side opposite to the first main circuit board, and are arranged in parallel with the first main circuit board.

Abstract: A planar transformer is configured on a multi-layer circuit board of a resonant converter. The planar transformer includes multiple layers of primary-side traces, multiple layers of secondary-side traces, and an iron core. The primary-side traces serve as a primary-side coil of the transformer to generate a first direction magnetic flux when the resonant converter operates. The secondary-side traces serve as a secondary-side coil of the transformer to generate a second direction magnetic flux when the resonant converter operates. The primary-side traces and the secondary-side traces surround a first core pillar and the second core pillar, and the primary-side traces and the secondary-side traces are configured in a specific stacked structure on the multi-layer circuit board, so that a magnetomotive force of the planar transformer can maintain balance during the operation of the resonant converter.

Abstract: A planar magnetic component is arranged on a circuit board of a resonant converter, and the resonant converter includes a primary-side circuit and a secondary-side circuit. The planar magnetic component includes an inductor trace, a primary-side trace, a secondary-side trace, and an iron core assembly. The iron core assembly includes an inductor iron core and an iron core. The primary-side trace surrounds the first through hole in a first direction and surrounds the second through hole in a second direction to form an ?-shaped trace. The inductor trace is formed on the primary-side layer board and coupled to the primary-side trace, and two ends of the inductor trace form an input terminal and an output terminal of the planar magnetic component.

Abstract: A press-fit wire disposed in a magnetic device is provided. The press-fit wire includes a first wire and a second wire. The second wire is attached to the first wire. The first wire and the second wire are arranged along a first direction and are parallel circuits. The first wire and/or the second wire is a multi-strand wire.

Abstract: A wearable device, and a notification system and a notification method thereof are provided. The wearable device includes a rotatable ring, multiple switches, and a communication module. The wearable device obtains a control signal by rotating the rotatable ring to trigger part of the switches, and transmits a mode signal to an electronic apparatus in response to the control signal. After receiving the mode signal, the electronic apparatus switches to a corresponding mode.

Abstract: A wearable device, and a notification system and a notification method thereof are provided. The wearable device includes a rotatable ring, multiple switches, and a communication module. The wearable device obtains a control signal by rotating the rotatable ring to trigger part of the switches, and transmits a mode signal to an electronic apparatus in response to the control signal. After receiving the mode signal, the electronic apparatus switches to a corresponding mode.

Abstract: The present invention provides a display parameter adjusting method and an electronic device employing the method. The electronic device includes a display, a light source and a light receiver. The display parameter adjusting method includes: emitting a light beam to the light receiver by the light source; calculating a turbidity of a location of the display according to a first light intensity of the light beam received by the light receiver, wherein a propagation direction of the light beam emitted by the light source is parallel to a displaying surface of the display, and the location is beneath a water surface; and adjusting the display parameter according to the turbidity.

Abstract: The present invention provides a display parameter adjusting method and an electronic device employing the method. The electronic device includes a display, a light source and a light receiver. The display parameter adjusting method includes: emitting a light beam to the light receiver by the light source; calculating a turbidity of a location of the display according to a first light intensity of the light beam received by the light receiver, wherein a propagation direction of the light beam emitted by the light source is parallel to a displaying surface of the display, and the location is beneath a water surface; and adjusting the display parameter according to the turbidity.

Abstract: An element measurement circuit is provided, comprising a oscillator for generating a first oscillation clock and second oscillation clock, a frequency divider for dividing the first oscillation clock to generate a third oscillation clock and for dividing the second oscillation clock to generate a fourth oscillation clock, a frequency detector for detecting the third oscillation clock to generate a first count value and for detecting the fourth oscillation clock to generate a second count value, and a controller for generating a first oscillation period according to the first count value, for generating a second oscillation period according to the second count value, and for generating a measurement value according to the first oscillation period and the second oscillation period.

Abstract: An element measurement circuit is provided, comprising a oscillator for generating a first oscillation clock and second oscillation clock, a frequency divider for dividing the first oscillation clock to generate a third oscillation clock and for dividing the second oscillation clock to generate a fourth oscillation clock, a frequency detector for detecting the third oscillation clock to generate a first count value and for detecting the fourth oscillation clock to generate a second count value, and a controller for generating a first oscillation period according to the first count value, for generating a second oscillation period according to the second count value, and for generating a measurement value according to the first oscillation period and the second oscillation period.

Abstract: A chassis structure of an electronic device includes a chassis and two hard disk drive (HDD) mobile racks of different sizes. The chassis has two expansion slots of different sizes. The smaller mobile rack carries a plurality of hard disk drives and is directly installed into the smaller expansion slot. Alternatively, the smaller mobile rack carrying the hard disk drives may also be first assembled into the larger mobile rack and then installed into the larger expansion slot together with the larger mobile rack, such that the hard disk drives are installed into all the expansion slots in the chassis.

Abstract: A stably-dispersed composite of metal nanoparticles and inorganic clay and a method for producing the composite, in which interlayered charges of the clay are replaced with the metal ions, which are then reduced to metal particles by a reducing agent. The metal particles will not aggregate together and can be stably uniformly dispersed with particle sizes smaller than conventional metal nanoparticles, and therefore have better antibiotic effect, catalytic ability and other advantages. Antibacterials in a solvent containing 0.01 wt % or more of the metal nanoparticles and inorganic clay are prepared and confirmed to be effective.

Abstract: A fan fixing apparatus is provided. The fan fixing apparatus clamps the fan and positions the fan on the casing. The fan fixing apparatus includes a plurality of mushroom pillars and a frame. The mushroom pillars are disposed on the casing, and the frame has a clamping portion for clamping the fan and a plurality of gourd holes corresponding to the mushroom pillars. The gourd hole has a guiding portion, a positioning portion and a slide rail communicating the guiding portion and the positioning portion. The mushroom pillar is inserted into the guiding portion, and is finally positioned in the positioning hole by moving along the slide rail, such that the fan fixing apparatus is rapidly positioned in the casing.

Abstract: A plug fastening device applied to a socket-forming side having a first fixing portion is provided. The plug fastening device includes a fixing member and a binding member. The fixing member has at least one first coupling portion, and a second fixing portion for being fixed to the first fixing portion. The binding member is capable of binding an end of a plug, and has at least one second coupling portion for being coupled to the first coupling portion. As the binding member is applicable to all kinds of plugs with different specifications, the drawback in the prior art that the conventional plug fastening device cannot be universally used is overcome.

Abstract: A plug fastening device applied to a socket-forming side having a first fixing portion is provided. The plug fastening device includes a fixing member and a binding member. The fixing member has at least one first coupling portion, and a second fixing portion for being fixed to the first fixing portion. The binding member is capable of binding an end of a plug, and has at least one second coupling portion for being coupled to the first coupling portion. As the binding member is applicable to all kinds of plugs with different specifications, the drawback in the prior art that the conventional plug fastening device cannot be universally used is overcome.