Abstract:
An aging status diagnostic apparatus for a power conversion system and diagnosing method thereof are provided. The apparatus includes an output current sensing means detecting output current of an inverter switching module; and a measurement and diagnosis means receiving the output current, calculating one or more average values of the output current over one period, and magnitude or effective value of each harmonic of the output current, and determining whether aging of the inverter switching module has occurred. Furthermore, the measurement and diagnosis means determines that the aging of the inverter switching module has occurred if the average value of the output current over one period increases by a value equal to or greater than a predetermined range and/or an even order harmonic or a specific order harmonic based on FFT (Fast Fourier Transform) of the output current increases by a value equal to or greater than a predetermined range.
Abstract:
A method of driving a display device is provided, including storing drive data blocks in a drive data block unit, fetching the drive data blocks from the drive data block unit, storing the drive data blocks in data block setting registers, driving the display device using the drive data blocks stored in the data block setting registers, wherein the drive data blocks contain data used in configuring, controlling, sequencing, setting or initializing the display device.
Abstract:
Disclosed is a robot for transferring a substrate, wherein the robot has a robot arm, a hand part, which includes a plurality of plates. A plurality of pins protrude from the plates such that each pin may be folded downward. The pins include a rubber or resin with thermally insulating properties. By selectively folding down a certain number of the pins, contact may be minimized between the substrate and the robot, thereby preventing damage to the substrate such as thermally-induced defects and stains.
Abstract:
In general, in the circuit to measure and diagnose the cell post voltage and internal impedance in storage battery cells and find out their aging status, the impedance voltage signal which is induced by the constant current is added to the direct current voltage on the storage battery cell post. This invention provides a much better method to discriminate the battery cell voltage 1.0 V-12 V and internal impedance voltage from the various noises on the battery cell post voltage like the induced ripple voltage, and then convert them to digital values by means of a A/D converter, and input the digital signals into a CPU. As a result, it raises the degree of accuracy in measurement of the internal impedance value of the battery.
Abstract:
A display device is provided, which includes: first and second panel units; a first connector attached to one side of the first panel unit; a second connector attached to one side of the second panel unit; and a flexible printed circuit film attached to a portion of the first connector and a portion of the second connector.
Abstract:
An electronic device includes a central processing unit (“CPU”), first and second display panels, and first and second display panel drivers. The CPU provides an image signal and an input control signal. The first and second display panels respectively display images. The first and second display panel drivers drive the first and second display panels according to the image signal and the input control signal. The CPU includes an interface transmission unit outputting an interface signal to control the first and second display panel drivers. The first and second display panel drivers respectively include first and second interface receiving units receiving the interface signal from the interface transmission unit. The interface signal includes a display panel selection bit and a data bit.
Abstract:
A flat panel display device includes a display module, a protection window member and a layer disposed in an area between the protection window member and a display area of the display module. The protection window member includes a stepped portion within which the layer is disposed. The stepped portion may include a recess or a plurality of layers.
Abstract:
A flat panel display device includes a display module, a protection window member and a layer disposed in an area between the protection window member and a display area of the display module. The protection window member includes a stepped portion within which the layer is disposed. The stepped portion may include a recess or a plurality of layers.
Abstract:
An emergency power diagnosis system measures the exact value of impedance voltage (Vis) from an AC actual waveform (VSM) includes circuits and software operable to measure the effective resistance of battery internal impedance to determine the expected life of a battery string. The system is configured to determine the cause of aging progress in advance and determine by unmanned monitoring the real-time status of emergency power system at a remote site.
Abstract:
Disclosed is a robot for transferring a substrate, wherein the robot has a robot arm, a hand part, which includes a plurality of plates. A plurality of pins protrude from the plates such that each pin may be folded downward. The pins include a rubber or resin with thermally insulating properties. By selectively folding down a certain number of the pins, contact may be minimized between the substrate and the robot, thereby preventing damage to the substrate such as thermally-induced defects and stains.