Patent attributes
The invention relates to a method of current management in a battery powered audio device. According to the invention the method comprises the following steps:a—comparing the actual supply voltage from the battery with a fixed reference voltage,b—generating a control signal whenever the supply voltage is below the reference voltage,c—use the control signal to reduce the load current in the battery powered device, whereby the supply voltage from the battery will increase,d—repeat steps a, b and c whenever the supply voltage is below the reference voltage, and register the rate at which the sequence of steps are repeated, ande—activate an AGC to decrease the output level whenever repetition rate of the a, b and c steps is above a predetermined level.
