Patent application number | Description | Published |
20080216197 | Polypeptide Having Function Related to Pyridoxine Biosynthesis, Polynucleotide Coding the Polypeptide, and Those Use - Disclosed herein are a polypeptide having a pyridoxine biosynthesis-related function, a polypeptide encoding the same, and uses thereof. | 09-04-2008 |
20090133153 | Polypeptide participating in pyridoxine biosynthesis, polynucleotide encoding the polypetide and those uses - The present invention discloses a polypeptide participating in pyridoxine biosynthesis, a polynucleotide coding the polypeptide and those uses. Particularly, this present invention discloses a polypeptide participating in pyridoxine biosynthesis, a polynucleotide coding the polypeptide, a method for inducing plant growth inhibition, a method for screening a compound inducing plant growth inhibition, and composition for inducing plant growth inhibition which comprises the compound obtained by the screening method. | 05-21-2009 |
20100037345 | Polypeptide having Methionine Synthesis Function, Polynucleotide Encoding the Polypeptide, and Those Use - Disclosed herein are a polypeptide having a methionine synthesis function, a polynucleotide encoding the same, and uses thereof. | 02-11-2010 |
20100264858 | PASSIVE CONVERTER FOR DRIVE DEVICE OF SWITCHED RELUCTANCE MOTOR - Disclosed is a passive converter for a drive device of a switched reluctance motor (SRM), in which high demagnetization voltage for the SRM is provided. The converter includes a rectifier which smoothes input voltage to supply DC voltage, a boost circuit connected with the rectifier, and an asymmetric converter connected with the boost circuit, and the boost circuit includes first to third diodes and first and second capacitors. The high demagnetization voltage is generated at current duration of a single phase or poly-phase SRM by using the passive converter for the drive device of the SRM, so that the driving | 10-21-2010 |
20100297661 | Diagnostic Composition and Kit for Renal Cell Carcinoma - Disclosed herein are a composition and a kit for diagnosing renal cell carcinoma. The composition and kit employ, as a renal cell carcinoma marker, nicotinamide N-methyltransferase, L-plastin, secretagogin, NM23A, CapG, which is an actin regulatory protein, and/or C4a anaphylatoxin. | 11-25-2010 |
20110069515 | ACTIVE BOOST POWER CONVERTER FOR SINGLE-PHASE SRM - Disclosed is an active boost power converter for driving a single-phase SRM, capable of rapidly establishing excitation current in the excitation mode and reducing tail current and negative torque in the demagnetization mode under the high-speed operation of the SRM. The active boost power converter includes a boost module and a converter module connected to the boost module. The boost module includes first and second capacitors, first and second diodes and a switch device turned on/off to connect the first and second capacitors to each other in series or parallel. The switch device includes an insulated gate bipolar transistor (IGBT). The power converter is operated with first and second input modes and first and second output modes. Voltage of the first capacitor is equal to dc-link voltage and first and second capacitors are controlled to be operated in series or parallel by simply controlling the IGBT. | 03-24-2011 |
20110131683 | Polypeptide Inducing Dwarfism of Plants, Polynucleotide Coding the Polypeptide, and Those Use - Provided are polypeptides capable of inducing dwarfism in plants, polynucleotides encoding the same, and uses thereof. | 06-02-2011 |
20120068558 | HYBRID POLE BEARINGLESS SRM - Disclosed is a hybrid pole bearingless switched reluctance motor (BLSRM). The BLSRM includes a stator provided with windings, a rotor rotating about an axis when current is conducted to the windings. The rotor includes a plurality of rotor poles extending radially outward, and the stator includes a plurality of stator poles extending radially inward. The windings include suspending windings to generate radial force for the rotor and torque windings to generate torque. The suspending windings are mutually separated from the torque windings. Through the use of the hybrid pole BLSRM, a stator pole generating the radial force can be controlled independently from the stator pole generating the torque by separately arranging the stator pole generating the radial force and the stator pole generating torque based on the analysis of radial force and torque characteristics according to the position of the stator poles. | 03-22-2012 |
20120104986 | TORQUE CONTROL METHOD FOR HIGH-SPEED SWITCHED RELUCTANCE MOTOR - Disclosed herein is a torque control method for a high-speed Switched Reluctance Motor (SRM), which controls a torque in the high-speed operation of a 2-phase SRM. In the torque control method for a high-speed SRM, a positive torque (T* | 05-03-2012 |
20120104987 | METHOD OF CONTROLLING CURRENT OF HIGH-SPEED SWITCHED RELUCTANCE MOTOR - Disclosed herein is a method of controlling the current of a high-speed Switched Reluctance Motor (SRM) using an inverter circuit including a first switching element, a second switching element, a first diode, a second diode and a reactor, wherein the first switching element and the first diode, the second diode and the second switching element are connected to a bridge circuit, and one end of the reactor is connected to the junction of the first switching element and the first diode, and the remaining end of the reactor is connected to the junction of the second diode and the second switching element; and excitation mode, free-wheeling mode- | 05-03-2012 |
20130069577 | SPEED CONTROL APPARATUS FOR THE SWITCHED RELUCTANCE MOTOR - Disclosed here is a speed control apparatus for a switched reluctance motor (SRM) including: a current control unit generating command currents for each period; a driving unit generating a pulse width modulation (PWM) signal to allow a voltage to be applied to the SRM; a magnetic flux error calculating unit calculating a magnetic flux error; a rotor position estimating unit calculating an estimation position using the magnetic flux error to output the estimation position to the magnetic flux error calculating unit; and a mode change-over unit allowing a command position corresponding to a command speed to be input to the magnetic flux error calculating unit. | 03-21-2013 |
20130088905 | DEAD-TIME COMPENSATION ALGORITHM FOR 3-PHASE INVERTER USING SVPWM - Disclosed is a dead-time compensation method of a 3-phase inverter using an SVPWM scheme. The dead-time compensation method includes generating a switching signal having dead-time with respect to the power semiconductor switches of the upper and lower arms in order to obtain a predetermined output through the SVPWM scheme, detecting medium phase current from each phase current output through the switching signal, determining polarity of the medium phase current, and generating a switching signal by calculating switching time in order to compensate for time to apply effective voltage according to the polarity of the medium phase current. Through the dead-time compensation method, the distortion of the output voltage and the reduction of voltage having a fundamental wave in the output voltage, which are caused by the dead-time, are minimized through the switching of compensating for the time to apply effective voltage based on the polarity of the load current. | 04-11-2013 |
20130113408 | METHOD FOR SUPPRESSING SPEED RIPPLE BY USING TORQUE COMPENSATOR BASED ON ACTIVATION FUNCTION - Disclosed is a method for suppressing a speed ripple occurring during an operation of an AC motor by using a torque compensator based on an activation function. The method includes the steps of calculating a speed error ω | 05-09-2013 |
20130207588 | INITIAL DRIVING APPARATUS AND METHOD OF TWO-PHASE SRM - Disclosed herein are an initial driving apparatus and method of a two-phase switched reluctance motor (SRM). The initial driving apparatus of a two-phase SRM includes: a driving unit; a current measuring unit; a memory; and a controlling unit comparing the currents measured in the current measuring unit and a difference between the currents with the data currents and the difference between the data currents stored in the memory to determine an initial position, thereby initially driving the SRM. Therefore, the two-phase SRM may be stably operated. | 08-15-2013 |