Title: Method of current management in a battery powered audio device
Application Number: 200610081280 Application Date: 2006.05.25
Publication Number: 1870837 Publication Date: 2006.11.29
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H04R25/00,G05F1/46
Applicant(s) Name: Oticon AS Address:
Inventor(s) Name: Danielsen Finn
Attorney & Agent: zhu mei
Abstract:
     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, and e-activate an AGC to decrease the output level whenever repetition rate of the a, b and c steps is above a predetermined level.
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