Abstract: A clock and data recovery device includes an equalizer that compensates for channel loss of input data, a phase detector that compares data output from the equalizer and a fed back clock and outputs an up signal and a down signal, a charge pump that operates according to the up signal and the down signal to output a control signal, a loop filter that removes a high-frequency component included in the control signal output from the charge pump, a voltage-controlled oscillator that changes a frequency of the clock and outputs the clock according to the control signal from which the high-frequency component is removed, and a voltage-controlled oscillator buffer that adjusts a slew rate of the clock output by the voltage-controlled oscillator according to the up signal and the down signal directly received from the phase detector and transmits the clock to the phase detector.

Abstract: A clock and data recovery device includes an equalizer that compensates for channel loss of input data, a phase detector that compares a data output from the equalizer with a clock fed back and outputs an up signal and a down signal, a charge pump that operates according to the up signal and the down signal and outputs a control signal, a loop filter that removes high-frequency components included in the control signal, a voltage controlled oscillator that changes a frequency of the clock and outputs a clock with changed frequency, and a data phase adjuster that synchronizes the clock output from the voltage controlled oscillator and the data output from the equalizer by adjusting a phase of the data output from the equalizer by receiving the up signal and the down signal output from the phase detector.

Abstract: Disclosed herein are a transition part assembly which is improved in efficiency of cooling a high-temperature region formed on a side surface of a transition part of a gas turbine, and a combustor including the same. The transition part assembly includes a transition part, a collision sleeve, a cooling hole, and a guide which is formed inside the collision sleeve so as to guide air to a side surface of the transition part.

Abstract: Disclosed herein are a transition part assembly which is improved in efficiency of cooling a high-temperature region formed on a side surface of a transition part of a gas turbine, and a combustor including the same. The transition part assembly includes a transition part, a collision sleeve, a cooling hole, and a guide which is formed inside the collision sleeve so as to guide air to a side surface of the transition part.

Abstract: There is provided a spindle motor, including: a sleeve fixed to a base member; a shaft rotatably inserted into the sleeve; and a rotor hub fixed to a top end portion of the shaft to be rotated together therewith and provided with an extension wall to form a liquid-vapor interface together with an outer circumferential surface of the sleeve, wherein the extension wall is provided with a protrusion portion protruded in an inner radial direction so as to reduce leakage of a lubricating fluid.