Electronic circuit for the adjustment of the output power and / or frequency characteristic of the power amplifier for a hearing aid

摘要

The hearing aid has a microphone (11), a signal processing unit, and a power amplifier with output stages (1). Each output stage is provided with a separate output (6), where each output is connected with a controllable switching device (2) for limiting a maximum power output and/or frequency response. The switching device is provided for electrically and selectively connecting the outputs of the assigned output stages with earpieces (3). An independent claim is also included for a method for adjusting power output and frequency response.