Abstract: To prevent arcing discharge of a liquid crystal device. Provided is a liquid crystal device including a liquid crystal layer, a first substrate, a second substrate and an insulating film, wherein the liquid crystal layer is arranged between the first substrate and the second substrate, the first substrate includes electrode 1, the second substrate includes electrode 2, the insulating film is arranged between electrode 1 and electrode 2, and the insulating film is a cured product of a thermosetting polymer composition.

Abstract: A battery backup system includes a battery pack, a charger, a discharger, a voltage detection and control circuit, a first protection switch, a second protection switch and a third protection switch. The battery pack provides a backup power to a DC bus. The charger, connected to the battery pack, receives an external power. The discharger has an input end and an output end. The voltage detection and control circuit detects whether the voltage of the DC bus is greater than first or second voltage drop point. The first, the second and the third protection switches respectively are connected between the battery pack and the input end, between the DC bus and the output end, and between the charger and the input end. The first protection switch is turned on/off according to whether the voltage of the DC bus is less than or greater than the first voltage drop point.

Abstract: A battery backup system includes a battery pack, a charger, a discharger, a voltage detection and control circuit, a first protection switch, a second protection switch and a third protection switch. The battery pack provides a backup power to a DC bus. The charger, connected to the battery pack, receives an external power. The discharger has an input end and an output end. The voltage detection and control circuit detects whether the voltage of the DC bus is greater than first or second voltage drop point. The first, the second and the third protection switches respectively are connected between the battery pack and the input end, between the DC bus and the output end, and between the charger and the input end. The first protection switch is turned on/off according to whether the voltage of the DC bus is less than or greater than the first voltage drop point.

Abstract: To prevent arcing discharge of a liquid crystal device. Provided is a liquid crystal device including a liquid crystal layer, a first substrate, a second substrate and an insulating film, wherein the liquid crystal layer is arranged between the first substrate and the second substrate, the first substrate includes electrode 1, the second substrate includes electrode 2, the insulating film is arranged between electrode 1 and electrode 2, and the insulating film is a cured product of a thermosetting polymer composition.

Abstract: A power output management apparatus of a battery and a management method thereof are provided. The management method includes: enabling a power output mode and discharging a battery to a load via a discharge circuit in the power output mode; calculating the output power of the discharge circuit during the discharge; comparing the output power and a target power to generate a comparison result; and setting the output power being adjusted step by step by a unit compensation amount via the discharge circuit according to the comparison result.

Abstract: A power output management apparatus of a battery and a management method thereof are provided. The management method includes: enabling a power output mode and discharging a battery to a load via a discharge circuit in the power output mode; calculating the output power of the discharge circuit during the discharge; comparing the output power and a target power to generate a comparison result; and setting the output power being adjusted step by step by a unit compensation amount via the discharge circuit according to the comparison result.

Abstract: A hybrid power convertor includes an input to receive an input voltage, an output to export an output voltage, a control module, a switching module, a buck module and a boost module. The control module has a first comparison terminal coupled to the input, a second comparison terminal coupled to the output, a mode-control terminal, a boost-control terminal and a buck-control terminal. The switching module is coupled to the input and the mode-control terminal, and has a buck input terminal and a boost input terminal. The buck module is coupled to the buck input terminal, the buck-control terminal and the output terminal, and the buck module is able to perform a switching convertor mode and a linear regulator mode. The boost module is coupled to the boost input terminal, the boost-control terminal and output terminal, and the boost module is able to perform a boost convertor mode and a linear-like regulator mode.

Abstract: A hybrid power convertor includes an input to receive an input voltage, an output to export an output voltage, a control module, a switching module, a buck module and a boost module. The control module has a first comparison terminal coupled to the input, a second comparison terminal coupled to the output, a mode-control terminal, a boost-control terminal and a buck-control terminal. The switching module is coupled to the input and the mode-control terminal, and has a buck input terminal and a boost input terminal. The buck module is coupled to the buck input terminal, the buck-control terminal and the output terminal, and the buck module is able to perform a switching convertor mode and a linear regulator mode. The boost module is coupled to the boost input terminal, the boost-control terminal and output terminal, and the boost module is able to perform a boost convertor mode and a linear-like regulator mode.

Abstract: A direct current voltage conversion device includes a buck converter receiving a direct current input voltage and outputting a direct current first voltage according to a first control signal, a series resonant converter outputting an alternating current second voltage according to a second control signal and a third control signal, a transformer that receives the alternating current second voltage, a rectifier, and an output capacitor electrically coupled with the rectifier. The rectifier generates a direct current output voltage according to a fourth control signal and a fifth control signal, which is outputted across the output capacitor.

Abstract: A bobbin structure includes a hollow cylindrical body, a first blocking member extending outward from one end of the cylindrical body, a second blocking member extending outward from another end of the cylindrical body that is opposite to the one end, and a ring sleeved onto the cylindrical body between the first and second blocking members and movable relative to the cylindrical body for repositioning.

Abstract: A direct current voltage conversion device includes a buck converter receiving a direct current input voltage and outputting a direct current first voltage according to a first control signal, a series resonant converter outputting an alternating current second voltage according to a second control signal and a third control signal, a transformer that receives the alternating current second voltage, a rectifier, and an output capacitor electrically coupled with the rectifier. The rectifier generates a direct current output voltage according to a fourth control signal and a fifth control signal, which is outputted across the output capacitor.