Abstract: A non-insulated charger can be capable of reducing a common mode leakage current of the non-insulated charger, and the non-insulated charger can include a filter configured to remove interference electromagnetic waves from an AC voltage, a power factor adjustment circuit configured to reduce power loss through power factor adjustment with respect to the AC voltage from which the interference electromagnetic waves have been removed and convert the AC voltage into a first DC voltage, and a converter configured to convert the first DC voltage into a second DC voltage differing from the first DC voltage and having a circuit structure in which both an input side and an output side have a form of a full bridge to reduce a common mode leakage current.

Abstract: A multi-output power conversion apparatus capable of integrally operating an auxiliary battery includes a high voltage battery configured to output a first power and a power conversion unit. The power conversion unit is configured to convert the first power into a second power and to convert the second power into a third power with multiple outputs to supply it to each of a plurality of electric part loads with different power consumption magnitudes.

Abstract: In a method of increasing power conversion efficiency of a charger-converter integrated device, the method can include performing, by a controller, a first switching operation on a primary bridge circuit of the charger-converter integrated device, and performing synchronization, by the controller, by performing a second switching operation on a secondary bridge circuit of the charger-converter integrated device. The synchronization can be achieved by adding a calculated specific value to a second duty cycle of the secondary bridge circuit for obtaining a first duty cycle of the primary bridge circuit.

Abstract: A power factor correction (PFC) circuit switching method can include coupling a PFC circuit and AC power to enable a controller to perform an initial charging operation on an output capacitor to firstly increase an output capacitor voltage, enabling the controller to secondly increase the output capacitor voltage in response to whether the firstly-increased output capacitor voltage reaches a first preset reference voltage, and enabling the controller to switch first and second poles configured in the PFC circuit at different duty ratios in response to whether the secondly-increased output capacitor voltage reaches a second preset reference voltage.

Abstract: An AC power output device includes a switching component connected to each of a plurality of batteries and configured to turn ON or OFF an electrical connection between a corresponding battery and another battery depending on an operational state, a filter component configured to receive an output voltage from the plurality of batteries, to adjust a polarity of the output voltage from the plurality of batteries according to an operational state, and to output the voltage of the adjusted polarity, and a controller configured to control the operational states of the switching component and the filter component so that the AC power is output from the plurality of batteries.

Abstract: An AC power output device includes a switching component connected to each of a plurality of batteries and configured to turn ON or OFF an electrical connection between a corresponding battery and another battery depending on an operational state, a filter component configured to receive an output voltage from the plurality of batteries, to adjust a polarity of the output voltage from the plurality of batteries according to an operational state, and to output the voltage of the adjusted polarity, and a controller configured to control the operational states of the switching component and the filter component so that the AC power is output from the plurality of batteries.

Abstract: A display device may include a display unit disposed on a substrate and a mirror substrate facing the substrate with respect to the display unit. The mirror substrate may include a first mirror layer extending continuously on a surface of a transparent substrate and a plurality of mirror patterns on the first mirror layer. The first mirror layer is formed on both a region in which the plurality of mirror patterns are formed and a region in which the plurality of mirror patterns are not formed. External light is incident to and reflected by the first mirror layer, thus reducing an image haze and enhancing a display quality of the display device. In addition, the first mirror layer and the plurality of mirror patterns may be formed by using a single halftone mask to simplify the manufacturing process and increase a productivity of the mirror substrate.

Abstract: A multi-output power conversion apparatus capable of integrally operating an auxiliary battery includes a high voltage battery configured to output a first power and a power conversion unit. The power conversion unit is configured to convert the first power into a second power and to convert the second power into a third power with multiple outputs to supply it to each of a plurality of electric part loads with different power consumption magnitudes.