Audio system of a vehicle

摘要

An audio system of a vehicle includes a mainframe, a panel computer, and a power converting circuit. The mainframe includes a power signal output terminal. The power converting circuit includes a charging unit, a switch unit, and a battery unit. When the power signal output terminal is electrically connected to the power converting circuit, the power signal output terminal outputs a first DC voltage to the power converting circuit, the power converting circuit converts the first DC voltage to a second DC voltage, which is provided to the panel computer, and the first DC voltage charges the battery unit via the charging unit and the switch unit. When the power signal output terminal and the power converting circuit are disconnected, the battery unit outputs the first DC voltage, and the power converting circuit converts the first DC voltage into the second DC voltage, which is provided to the panel computer.

主权项

1. An audio system configured for a vehicle comprising:
a mainframe comprising an audio signal positive output terminal and a power signal output terminal, the audio signal positive output terminal being configured to output an audio signal; a panel computer comprising an audio signal positive input terminal, the audio signal positive input terminal being configured to receive the audio signal, the panel computer being configured to convert the audio signal to an sound signal and to output the sound signal; and a power converting circuit comprising a charging unit, a switch unit and a battery unit; wherein when the power signal output terminal is electrically connected to the power converting circuit, the power signal output terminal outputs a first Direct Current (DC) voltage to the power converting circuit, the power converting circuit converts the first DC voltage to a second DC voltage which is provided to the panel computer, the first DC voltage charges the battery unit via the charging unit and the switch unit; and when the power signal output terminal and the power converting circuit are disconnected, the battery unit outputs the first DC voltage, the power converting circuit converts the first DC voltage to the second DC voltage which is provided to the panel computer.