Patent ID: 11923810
Assignee: GENELEC OY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 11:
12. An audio amplifier for use with a limited power source, the audio amplifier comprising:
a power input terminal,
a signal input terminal, wherein the power input terminal and the signal input terminal are comprised in a combined input terminal,
a DC to DC converter having an input connected to the power input terminal,
an electrical energy storage device connected to an output of the DC to DC converter,
an amplifier conductively connected to the output of the DC to DC converter so as to be powered by the output of the DC to DC converter and the electrical energy storage device, the amplifier also being conductively connected to the signal input terminal so as to receive a signal for amplification,
an audio level controller connected to the signal input terminal, the amplifier, the electrical energy storage device, and the DC to DC converter, and
an output of the amplifier configured to be connected to a transducer such that the transducer may be driven by the amplifier, wherein, the audio level controller is configured to monitor energy storage levels of the electrical energy storage device and limit the signal provided to the amplifier for amplification to ensure that the energy storage levels remain above a predefined threshold.