Abstract: A trans inductor having a powdery magnetic substance and a power converter using the trans inductor are provided. The trans inductor and the power converter reduce peak current flowing in an inverter power module (IGBT), improve inverter efficiency, reduce output RMS current (output effective current) and reduce capacitor consumption by applying a material with properties that are resistant against current saturation instead of a core material of a conventional trans inductor employed in a power converter. Accordingly, an inductance decreasing rate due to core saturation when high current is generated is improved and current flowing in a switch device is prevented from being abruptly increased.

Abstract: Disclosed herein is a gate-driving apparatus configured for stably providing a voltage having a negative value to a gate of a switch, including a SiC(silicon carbide)-based FET (Field Effect Transistor), which requires a negative voltage having a negative value to implement a stable OFF state. The gate-driving apparatus includes a negative-voltage application circuit including a Zener diode and a capacitor connected in parallel to the Zener diode, wherein the Zener diode may have a cathode connected to a secondary coil of a pulse transformer and an anode connected to the gate of the switch.

Abstract: A single direct current (DC)-DC converter may include a switching part switching an input DC voltage; first and second transforming parts transforming an output of the switching part; a rectifying part rectifying outputs of each of the first and second transforming parts; and an output part filtering and outputting an output of the rectifying part.

Abstract: An integrated module of an OBC and an inverter includes: an OBC primary side circuit and a plurality of transformers converting, when 3-phase alternating current (AC) voltages are received from a fuel station, the 3-phase AC voltages in form and level and transmitting the converted voltages into a secondary side; and an inverter switch turned off in a charge mode in which a high capacity vehicle battery is charged, to rectify an output voltage of a secondary side of each of the plurality of transformers by a body diode included in each switching element for an inverting function.

Abstract: The present disclosure relates to a composition for preventing or treating metabolic diseases, in which the composition includes Bacteroides acidifaciens as an active ingredient. In addition, the present disclosure relates to a composition for oxidizing fat or inhibiting DPP-4, in which the composition includes Bacteroides acidifaciens as an active ingredient. In addition, the present disclosure relates to a transformant expressing a lean phenotype, in which an Atg7 gene is deleted in dendritic cells.

Abstract: A device and method are provided for a charger for vehicles. In particular, the charger includes, an AC/DC converter configured to convert a commercial alternating current power source to a direct current power source and a DC/DC converter configured to convert the direct current power source applied from the AC/DC converter to a battery charging power source. The direct current power source is supplied to a battery. The DC/DC converter includes a snubber circuit that reduces the magnitude of a ripple current of the charging power source.

Abstract: The present disclosure includes a non-volatile memory having a boot region, a file allocation table region and a data region; a memory configured to store a program for managing a file recording; and a processor configured to execute the program. Wherein the processor allocates metadata corresponding to a file to be stored in the non-volatile memory to the FAT region as the program is executed, the processor allocates a plurality of clusters to the data region based on information upon a size of the file included in the metadata, the processor writes the file in the plurality of clusters allocated to the data region, if a size of the written file is different from a size of the plurality of allocated clusters, the processor updates the metadata based on the size of the file.

Abstract: A resonant converter system is provided. The resonant converter system includes a secondary side of a transformer that is disposed within an LLC resonant converter. The secondary side of the transformer is configured with a single coil. Additionally, a rectifier of a secondary side of the LLC resonant converter includes a single diode.

Abstract: Forms of the present disclosure include an input end, and an output end connected to the input end to improve a power factor through the input end. The output end includes non-electrolytic capacitors formed at both sides of an electrolytic capacitor for output, and first inductors formed between the respective non-electrolytic capacitors and the electrolytic capacitor. Therefore, forms of the present disclosure may reduce a ripple current (current stress) at a PFC output end through a CL circuit formed at a left side with respect to the electrolytic capacitor, and reduce an input ripple current (input current stress) of a DC-DC converter through an LC circuit formed at a right side.

Abstract: A method for changing a capacitance value of an output capacitor of a power factor corrector (PFC) includes applying AC power to a power conversion circuit. It is sensed whether an instantaneous power failure occurs in the AC power. Output capacitors of the PFC of the power conversion circuit are connected in parallel to each other to increase capacitance values of the output capacitors, when it is sensed that the instantaneous power failure does not occur in the AC power.

Abstract: A cooling device for a transformer, capable of reducing heat generation from windings and a core, is provided. The cooling device for the transformer includes a primary winding and a second winding wound around a center part of the core and separated from each other. A heat-dissipating panel for releasing heat generated from the core, the primary winding, and the secondary winding to the exterior using heat conductance is inserted between the primary winding and the secondary winding. In addition, the heat-dissipating panel is configured to release heat using exposed edges of the primary winding and the secondary winding.

Abstract: A method for storing an image of a vehicle black box comprises: an image input step for inputting an image through a camera module; a temporary storage step for temporarily storing the inputted image in a temporarily processing unit, which consumes relatively low power, and allowing an event processing unit, which consumes relatively high power, to be in a sleep state or a power-off state; and an event storage step for allowing the event processing unit to be returned from the sleep state or the power-off state and storing in the event processing unit an image for the event from the time of the event occurrence up until before a predetermined time and from the time of the event occurrence up until after a predetermined time.

Abstract: An image storage device based on an input sound signal comprises: an acceleration sensor unit for outputting an acceleration sensor value according to an impact event; a microphone unit for receiving an input of an impact sound according to the impact event; a camera unit for photographing an external image; and a processing unit for, if an impact event is sensed by the acceleration sensor unit and the impact sound inputted by the microphone unit corresponds to a valid sound which is previously set and stored, storing, in a storage unit, the images photographed by the camera unit in a certain time period both before and after the point in time when the impact event occurred.

Abstract: A vehicle charging device is provided and efficiently operates a converter to charge a battery mounted within vehicles. The vehicle charging device includes a power-supply unit that provides a direct current (DC) voltage and a DC/DC converter that converts the DC voltage received from the power-supply unit into a battery charging voltage. The converter also includes an active snubber that is mounted to a secondary coil of a main transformer. The converter is configured to reduce a peak noise generated from the secondary coil using the active snubber and transmit the resultant voltage having the reduced peak noise to an output terminal.

Abstract: A device and method are provided for a charger for vehicles. In particular, the charger includes, an AC/DC converter configured to convert a commercial alternating current power source to a direct current power source and a DC/DC converter configured to convert the direct current power source applied from the AC/DC converter to a battery charging power source. The direct current power source is supplied to a battery. The DC/DC converter includes a snubber circuit that reduces the magnitude of a ripple current of the charging power source.

Abstract: The present invention relates to an energy supply circuit for instantly supplying power without a power converter and an electronic device which operates only when energy is supplied from an energy source using the same. An energy supply circuit without a power converter according to the present invention comprises: an energy extraction unit 10 for generating power from an energy source; and output unit 20 for supplying power to an external electronic circuit; a switch unit 30 interposed between the energy extraction unit and the output unit 20 to connect an output end of the energy extraction unit 10 to the output unit 20 when switched on; and a maximum power point tracking control unit 40 for generating an open/closed signal for opening or closing the switch unit 30 according to the voltage and current of the energy extraction unit 10.

Abstract: The present invention relates to a substrate processing apparatus. The substrate processing apparatus according to the present invention comprises: a processing chamber; substrate susceptor, installed in the processing chamber, which rotates in connection with a rotary shaft, a plurality of substrates being disposed on the same plane thereof; a heater member located on the lower surface of the substrate susceptor; and a spraying member for spraying a gas onto the entire processing surface of the substrate at a position corresponding to each of the plurality of substrates disposed on the substrate susceptor, wherein the heater member has an inner space in which heating wires for heating the substrate susceptor are arranged in a plurality rows of verticality and horizontality in a concentric circle based on the rotary shaft of the substrate susceptor.

Abstract: A magnetic connector apparatus that charges an electric vehicle through contactless magnetic coupling. The magnetic connector apparatus includes an external charger, an inlet, and a magnetic connector. The inlet is connected to a rechargeable battery of the vehicle. The magnetic connector is connected to a power source of the external charger and is transferred to the vehicle to be inserted into the inlet.

Abstract: An apparatus for controlling a charge for a battery is provided. The apparatus includes an input unit that is configured to convert alternating current (AC) input power into direct current (DC) power. A first converter is configured to store or output the DC power and a circuit unit is configured to filter or boost output power based on a normal operation state or an instantaneous power failure state of the AC input power. In addition, a second converter is configured to convert the filtered or boosted power and supply the power to a high voltage battery.

Abstract: An on-board charger for charging a battery of an eco-friendly vehicle and a method for charging a battery using the on-board charger are provided. The on board charger reduces an output current ripple by improving a snubber circuit unit of the on-board charger for charging a battery in plug-in hybrid and electric vehicles. In addition, the on-board charger for charging a battery of an eco-friendly vehicle reduces a surge voltage generated in a rectifier diode and reduces an output current ripple by arranging two capacitors and three diodes in a transformer secondary rectifier of the on-board charger.