Abstract: A battery management system includes a microcontroller, a switch circuit, a DC-to-DC converter and an automatic termination circuit. The switch circuit is adapted to be connected to a battery of an electric vehicle, and is configured to receive an operation command indicating that the microcontroller should be powered or not be powered. The DC-to-DC converter is connected to the switch circuit and the microcontroller. The automatic termination circuit is connected to the microcontroller and the switch circuit, and is configured to receive the operation command, detect an operation state of the microcontroller, obtain a time length based on the operation command and the operation state of the microcontroller, and, when the time length is greater than a predetermined threshold, output a termination command for receipt by the switch circuit so as to cause the switch circuit to break an electrical connection between the battery and the DC-to-DC converter.

Abstract: A wall of a building includes a wall body that is recessed to form multiple installation spaces, and a water supply unit that is disposed inside the wall body, and that includes multiple water pipes connected to the installation spaces and multiple actuated valves mounted to the water pipes. Each of the actuated valves, when opened, allows flow of water supplied via one of the water pipes to an installation space. The wall further includes a power supply circuit and multiple power units. Each of the power units includes a power storage module, a battery management system, and an emergency module. The battery management system controls a corresponding actuated valve to open when an operating value is higher than a predetermined value. The emergency module controls the corresponding actuated valve to open when the emergency module loses connection to the battery management system.

Abstract: The invention provides a battery module for improving safety, which comprises at least one fixing frame, a plurality of battery cells, a plurality of conductive sheets and a plurality of protection units. The battery cells are arranged on the fixing frame. Each conductive sheet is connected with two battery cells in series, each of the protection units is respectively connected with two conductive sheets, and the battery cells connected with the conductive sheets are connected in parallel via the protection unit. When the temperature of the protection unit is greater than a preset temperature, the protection unit will be blown, thereby preventing the battery cells from charging the defective battery cell, resulting in the defective battery cell to melt or explode.

Abstract: The invention provides a battery module for improving safety, which comprises at least one fixing frame, a plurality of battery cells, a plurality of conductive sheets and a plurality of protection units. The battery cells are arranged on the fixing frame. Each conductive sheet is connected with two battery cells in series, each of the protection units is respectively connected with two conductive sheets, and the battery cells connected with the conductive sheets are connected in parallel via the protection unit. When the temperature of the protection unit is greater than a preset temperature, the protection unit will be blown, thereby preventing the battery cells from charging the defective battery cell, resulting in the defective battery cell to melt or explode.

Abstract: A battery powered device includes a battery pack, at least one switch, a power management chip, and a pre-powered circuit. The pre-powered circuit comprises a buck and current-limiting module. The buck and current-limiting module comprises at least one zener diode and at least one current-limiting resistor. When the switch is turned off, the battery pack will be powered to a system device by the pre-powered circuit. Thus, the battery pack can be powered to the system device by the pre-powered circuit even if the battery powered device is operated in a standby mode. Besides, the power management chip can be operated in the standby state when the battery powered device is powered by the pre-powered circuit, so as to reduce the consumption of the battery energy and therefore extend the powered time of the battery powered device.

Abstract: The invention provides a battery powered device, which comprises a battery pack, at least one switch, a power management chip, and a pre-powered circuit. The pre-powered circuit comprises a buck and current-limiting module. The buck and current-limiting module comprises at least one zener diode and at least one current-limiting resistor. When the switch is turned off, the battery pack will be powered to a system device by the pre-powered circuit. Thus, the battery pack can be powered to the system device by the pre-powered circuit even if the battery powered device is operated in a standby mode. Besides, the power management chip can be operated in the standby state when the battery powered device is powered by the pre-powered circuit, so as to reduce the consumption of the battery energy and therefore extend the powered time of the battery powered device.

Abstract: An apparatus for processing an audio input signal is provided and includes an audio processing circuit and an audio compressing circuit. The audio processing circuit receives the audio input signal, and enhances a first frequency part of the audio input signal to output a bass-enhancement signal. The audio compressing circuit is coupled to the audio processing circuit, and reduces a gain of a second frequency part of the bass-enhancement signal to output an audio output signal.

Abstract: An apparatus for processing an audio input signal is provided and includes an audio processing circuit and an audio compressing circuit. The audio processing circuit receives the audio input signal, and enhances a first frequency part of the audio input signal to output a bass-enhancement signal. The audio compressing circuit is coupled to the audio processing circuit, and reduces a gain of a second frequency part of the bass-enhancement signal to output an audio output signal.