Patent application number | Description | Published |
20130234170 | SEMICONDUCTOR LIGHT EMITTING DEVICE HAVING MULTI-CELL ARRAY - A semiconductor light emitting device (LED) includes a first light emitting cell having a first plurality of electrodes. A second light emitting cell includes a second plurality of electrodes. The first and second light emitting cells are disposed on the substrate and are physically separated from each other. A first interconnection unit electrically connects the first plurality of electrodes to the second plurality of the electrodes. | 09-12-2013 |
20130306997 | SEMICONDUCTOR LIGHT EMITTING DEVICE HAVING MULTI-CELL ARRAY AND MANUFACTURING METHOD THEREOF, LIGHT EMITTING MODULE, AND ILLUMINATION APPARATUS - A semiconductor light emitting device includes a substrate and a plurality of light emitting cells disposed on the substrate. Each light emitting cell includes first and second conductive semiconductor layers having an active layer formed therebetween, and first and second electrodes formed on the first and second layers. A first insulation layer is formed on portions of the light emitting cell, while a second insulation layer entirely covers at least one light emitting cell. A method of manufacturing the semiconductor light emitting device, and a light emitting module and an illumination apparatus including the semiconductor light emitting device are also provided. | 11-21-2013 |
20130313986 | LIGHT EMITTING APPARATUS - A light emitting apparatus includes a power supply providing power having a predetermined frequency, a plurality of light emitting diode arrays, and at least one frequency converter. The light emitting diode arrays are electrically connected to the power supply and respectively have an array structure in which at least one or more light emitting diodes are connected to one another in series. The at least one frequency converter is connected to both ends of the power supply, and configured to modulate a frequency of the power provided from the power supply and provide a modulated electrical signal to at least one of the plurality of light emitting diode arrays. | 11-28-2013 |
20140217355 | SEMICONDUCTOR LIGHT EMITTING DEVICE - A semiconductor light emitting device includes: a semiconductor laminate having first and second conductivity type semiconductor layers and an active layer formed between the first and second conductivity type semiconductor layers; first and second electrodes connected to the first and second conductivity type semiconductor layers, respectively; and a micro-pattern formed on a light emitting surface from which light generated from the active layer is output, wherein a section of the micro-pattern parallel to the light emitting surface has a polygonal shape. | 08-07-2014 |
Patent application number | Description | Published |
20120292989 | CONTROL OF A CONVERTER FOR AN ELECTRIC VEHICLE - Control of a converter for an electric vehicle may control the converter of the electric vehicle where the converter is adapted to drop voltage and a counting unit is adapted to count a signal generated by the converter. The control includes inputting a signal generated by the converter to the counting unit during operation of the converter; counting the signal by the counting unit; determining whether a counting result of the counting unit corresponds to a predetermined interval; and deciding that the converter is out-of-order in a case that the counting result does not correspond to the predetermined interval. | 11-22-2012 |
20150021984 | SYSTEM AND METHOD FOR CONTROLLING ENERGY UNDER INTERLOCK OF ECO-FRIENDLY VEHICLE - A system and method for controlling energy of an eco-friendly vehicle are provided and include turning off, by a controller, a main relay in response to sensing interlock by means of a detection circuit and charging a secondary batter by discharging voltage of a capacitor in an inverter to the secondary battery, under control of voltage output from a low voltage DC converter after the main relay is turned off. In addition, the controller is configured to discharge DC-link voltage to a driving motor by operating the inverter after charging the second battery. | 01-22-2015 |
20150070027 | METHOD AND APPARATUS FOR DETECTING DISCONNECTION OF THREE-PHASE CABLE - A method and an apparatus for detecting disconnection from three-phase cable are provided. The method includes switching a plurality of switching elements included within switching units each corresponding to the respective phases of three-phase circuits configuring an output stage based on a predetermined criteria. In addition, the method includes applying a current generated in an input stage to the switching elements determined to be switched on and off based on the switching and detecting a current flow from the plurality of switching elements based on the applied current. Further, which of the three-phase circuits at the output stage is an open phase is determined based on the detection result. | 03-12-2015 |
20150077156 | INTERFACE CIRCUIT FOR DETECTING FAULT OF RESOLVER AND METHOD THEREOF - An interface circuit for detecting a fault in a resolver is provided. More specifically, the interface circuit includes the resolver connected to an intermediate point of a stator coil of a first output terminal for a sine wave signal and an intermediate point of the stator coil of a second output terminal for a cosine wave signal to output the sine and cosine wave signals as a common mode signal. Also includes is resolver fault detection interface unit that adjusts a gain and an offset of the sine wave signal and the cosine wave signal in order to adjust the sine wave signal and the cosine wave signal received as a common mode signal to a frequency that can be suitably applied to an analog/digital terminal of a microcomputer, and to allow high-frequency components of the sine wave signal and the cosine wave signal to pass therethrough. | 03-19-2015 |