Abstract: The present invention relates to a small cell base station antenna apparatus, and more particularly, comprises: a radio unit (RU); one or more antenna modules installed on the radio unit so as to be capable of tilting and steering operations; and a multi-function link for mediating the installation of the one or more respective antenna modules on the radio unit, wherein the multi-function link includes male connectors that electrically connect female connectors included in the antenna modules and the radio unit, thus providing the benefits of improving the workability of indoor installation and facilitating the construction of a small cell base station.

Abstract: A converter system for a vehicle including: a bi-directional converter electrically connected between a main battery and an auxiliary battery and configured to perform power conversion; a gate driver electrically connected to the bi-directional converter and configured to apply a PWM signal for controlling a driving mode of the bi-directional converter; a converter controller electrically connected to the gate driver and configured to apply a control signal for controlling driving of the gate driver; a control switch interposed between the converter controller and the gate driver and configured to connect or disconnect a connection between the converter controller and the gate driver; and a battery management system electrically connected to the gate driver through the control switch and configured to apply a control signal to control driving of the gate driver based on an abnormality in the converter controller.

Abstract: The present invention discloses a knob cap for a high-pressure tank including a first knob cap portion having a coupling groove coupled to a knob of a liner of the high-pressure tank in a lower surface, including a peripheral wing portion extending outward to be in contact with a surface of the liner to outside of a lower portion, and having a column portion in the shape of a column extending upward in a center; and a second knob cap portion integrally coupled with the first knob cap portion, having the column portion of the first knob cap portion inserted into a hollow, and including a plurality of inner grooves in the shape of a column having an upper end opened outside of the hollow and extending downward.

Abstract: A method performed by a fault management device including a microcontroller is provided. The method includes receiving fault information from a controller connected to the fault management device. The method also includes incrementing a first counter in response to receiving the fault information. The method additionally includes incrementing a second counter and initializing the first counter, when the first counter exceeds a first reference value. The method further includes incrementing a third counter and initializing the second counter, when the second counter exceeds a second reference value. When the fault management device does not receive the fault information for a first reference time or more, the first counter decrements.

Abstract: A method performed by an electronic control unit (ECU) includes: manipulating a boot area of an ECU so that the boot area is in an abnormal state; entering a boot strap loader (BSL) area of the ECU in response to detecting that the boot area is in an abnormal state upon resetting the ECU; determining whether to perform reprogramming of the boot area based on ROM identification information stored in the BSL area; and reprogramming the boot area when it is determined to perform the reprogramming.

Abstract: A microcontroller performs a control function. The microcontroller comprises: a memory management unit (MMU) performing a soft reset process by initializing remaining areas excluding a working page area of a memory managed by the memory management unit of the microcontroller; a communication module maintaining a communication connection prior to the soft reset process as it is even after the soft reset process; and a microprocessor initialized according to the soft reset process.

Abstract: A system for charging a battery for a vehicle may include a charging control device having a power factor correction circuit configured to convert an alternating current (AC) voltage of a charging apparatus into a direct current (DC) voltage, a DC-DC converter connected to the power factor correction circuit and configured to transform the DC voltage, a capacitor connected to an output terminal of the DC-DC converter, and a relay unit provided between the capacitor and the battery; and a control unit connected to the charging control device and configured to perform initial charging control in consideration of a capacitor voltage of the capacitor when the charging apparatus and the power factor correction circuit are connected by the control unit.

Abstract: A system for charging a battery for a vehicle may include a charging control device having a power factor correction circuit configured to convert an alternating current (AC) voltage of a charging apparatus into a direct current (DC) voltage, a DC-DC converter connected to the power factor correction circuit and configured to transform the DC voltage, a capacitor connected to an output terminal of the DC-DC converter, and a relay unit provided between the capacitor and the battery; and a control unit connected to the charging control device and configured to perform initial charging control in consideration of a capacitor voltage of the capacitor when the charging apparatus and the power factor correction circuit are connected by the control unit.

Abstract: A liquid crystal display device and a method of driving a liquid crystal display device are provided. The liquid crystal display device includes a display panel, a controller configured to generate and output an inversion switch signal for controlling inversion driving of the display panel by receiving a common voltage fed back from the display panel, and a data driver configured to receive the inversion switch signal and switch an inversion driving scheme. The controller includes a waveform converter for converting the common voltage to a square wave.