Patent application number | Description | Published |
20090033233 | Plasma display and its driver and driving method thereof - A plasma display includes an electrode, a first switch, a second switch, a third switch, an inductor, and a diode. The first switch is coupled to the electrode. The second switch is coupled between the electrode and a first power source to supply a first voltage. The third switch is coupled between the electrode and a second power source to supply a second voltage. The inductor is coupled between a second terminal of the first switch and a third power source to supply a third voltage. The diode is coupled in parallel with the inductor. The first switch includes a first and second transistors coupled in series, the first and second transistors being coupled back-to-back. | 02-05-2009 |
20130193948 | LOW POWER CIRCUIT FOR REDUCING LEAKAGE POWER USING NEGATIVE VOLTAGE - A power circuit for reducing a leakage power using a negative voltage is provided. The power circuit includes a current source including a transistor including a gate. The power circuit further includes a current source control circuit connected to the gate of the transistor, and configured to apply a positive voltage to the gate of the transistor if the current source is to operate in an active mode, and apply the negative voltage to the gate of the transistor if the current source is to operate in an inactive mode. | 08-01-2013 |
20130194036 | ENVELOPE DETECTION APPARATUS DYNAMICALLY CONTROLLED IN RESPONSE TO INPUT SIGNAL AND ENVELOPE DETECTION METHOD THEREOF - An envelope detection apparatus dynamically controlled in response to an input signal and an envelope detection method thereof are provided. The envelope detection apparatus includes an envelope detector configured to output an envelope of an input signal. The envelope detection apparatus further includes a detection band determination unit configured to determine a detection band based on the input signal. The envelope detection apparatus further includes a detection band controller configured to control a detection band of the envelope detector based on the determined detection band. | 08-01-2013 |
20130194146 | ANTENNA HAVING BROAD BANDWIDTH AND HIGH RADIATION EFFICIENCY - An antenna having a broad bandwidth and a high radiation efficiency is provided. The antenna includes a conductor, and a dielectric substrate disposed on the conductor. The antenna further includes a slot portion formed on the dielectric substrate, and a cavity formed in the dielectric substrate that corresponds to the slot portion. | 08-01-2013 |
20130249643 | RADIO FREQUENCY (RF) FILTER AND RF TRANSCEIVER USING BULK ACOUSTIC WAVE RESONATOR (BAWR) - A filter and a transceiver in a radio frequency (RF) band, using a bulk acoustic wave resonator (BAWR), are provided. The RF filter includes at least one low temperature coefficient of frequency (TCF) BAWR. The RF filter further includes at least one high quality factor (Q) BAWR including a high Q compared to the at least one low TCF BAWR, the at least one low TCF BAWR including a low TCF compared to the at least one high Q BAWR. | 09-26-2013 |
20130299941 | INDUCTOR - An inductor is provided. The inductor includes first and second bonding pads on a semiconductor substrate, a lead pin on a board trace, a first bonding wire being configured to connect the first bonding pad and the lead pin, and a second bonding wire configured to connect the second bonding pad and the lead pin, the second bonding wire being connected to the first bonding wire in parallel. | 11-14-2013 |
20140015331 | APPARATUS AND METHOD FOR WIRELESS POWER RECEPTION - An apparatus and a method for wireless power reception are provided. A wireless power receiver includes a receiving unit configured to wirelessly receive a power. The wireless power receiver further includes a power consuming unit configured to consume the power, until a voltage applied to a load reaches a predetermined value, so that an amount of a power transferred from the receiving unit to the load is less than or equal to an initial accommodation power amount of the load. | 01-16-2014 |
20140240191 | 2-PORT ANTENNA HAVING OPTIMUM IMPEDANCES OF A TRANSMITTER AND A RECEIVER - An antenna is described including a slot formed in a cavity, a substrate configured to cover a portion of the cavity and the slot, and a first port and a second port configured to supply power to the antenna using a first feeding line and a second feeding line. Each of the feeding line and the second feeding line is connected to the slot in a vertical direction and disposed to be separate from one another. A first input impedance of the antenna from the first port differs from a second input impedance of the antenna from the second port. | 08-28-2014 |
Patent application number | Description | Published |
20110296218 | BATTERY MANAGEMENT SYSTEM, METHOD OF CONTROLLING THE SAME, AND ENERGY STORAGE SYSTEM INCLUDING THE BATTERY MANAGEMENT SYSTEM - A battery management system (BMS), a method of controlling the same, and an energy storage system including the battery management system. The BMS may reduce costs by stably supplying power to an insulating unit in a power-saving mode even when an isolator has no built-in direct current (DC)-DC converter. | 12-01-2011 |
20120089261 | GRID CONNECTED POWER STORAGE SYSTEM AND INTEGRATION CONTROLLER THEREOF - A grid connected power storage system is disclosed. According to some aspects, an integration controller controlling a grid-connected power storage system may include a controller configured to change parallel data to be transmitted to a plurality of external devices to serial bit streams, change serial bit streams received from the plurality of external devices to parallel data, and output a path control signal that instructs a communication path of the serial bit streams. According to some aspects, a communication unit configured to change a communication path and a ground path of the serial bit streams according to the path control signal, and transmit and/or receive the serial bit streams through the changed communication path is provided. A number of isolators and interfaces for data communication with a plurality of external devices is reduced such that the structure of an integration controller may be simplified, and the size and production cost of the integration controller can be reduced. | 04-12-2012 |
20130154369 | ENERGY STORAGE SYSTEM AND CONTROLLING METHOD OF THE SAME - An energy storage system including: a battery; a power conditioning system coupled to the battery, switches coupleable to an internal load of the power conditioning system, the battery, a grid, or an external load; and a controller to: receive energy usage cost information of the grid and residual capacity information of the battery; determine which of an energy of the battery or the grid is to be provided to the external load, and to determine which of the energy of the battery or the grid is to be provided to the internal load, according to the energy usage cost information and the residual capacity information; and control the switches according to the determination to provide the energy of the battery or the grid to the external load, and to provide the energy of the battery or the grid to the internal load. | 06-20-2013 |
20140347013 | BATTERY MANAGEMENT SYSTEM AND METHOD OF DRIVING THE SAME - A battery rack includes: a plurality of battery packs; a plurality of slave battery management systems, each of the slave battery management systems being coupled to a corresponding one of the battery packs, being powered by an operating power, and being configured to use the corresponding one of the battery packs for the operating power in response to receiving a corresponding one of a plurality of operating power changing signals; and a master battery management system coupled to the slave battery management systems and configured to transmit the operating power changing signals to the slave battery management systems. | 11-27-2014 |
20140354236 | BATTERY MANAGEMENT SYSTEM AND DRIVING METHOD THEREOF - A battery management system (BMS) includes a first switch, a master BMS, and a slave BMS. The first switch is coupled to a charging and discharging path of a battery pack, which includes at least one battery cell. The master BMS is electrically coupled to the first switch to control operation of the first switch. The slave BMS obtains information of the battery pack, determines a status of the battery pack based on the information, and controls operation of the first switch based on the status of the battery pack. | 12-04-2014 |