Amplifier for vehicle and vehicle including the same

A vehicle comprising:

• a battery for supplying a voltage;
• a first direct current (DC)-to-DC converter that drops a first voltage applied by the battery;
• an amplifier that operates at a voltage applied by the battery;
• and
• a speaker that outputs sound based on controlling of the amplification,
• wherein the amplifier comprises:
• a first input port for receiving the first voltage;
• a second input port for receiving a second voltage dropped by the first DC-to-DC converter;
• at least one power Integrated Chip (power IC) connected to the speaker for using a voltage received from the first input port;
• and
• a controller for controlling the power IC using a voltage received from the second input port.

A vehicle comprising:

• a first battery that supplies a first voltage;
• a second battery that supplies a voltage lower than the first voltage supplied by the first battery;
• an amplifier that operates at voltages supplied by the first and second batteries;
• and
• a speaker that outputs sound based on controlling of the amplification,
• wherein the amplifier comprises:
• a first input port for receiving the first voltage;
• a second input port for receiving a second voltage lower than the first voltage;
• at least one power Integrated Chip (power IC) connected to the speaker for using a voltage received from the first input port;
• and
• a controller for controlling the power IC using a voltage received from the second input port.