Hearing aid device and operating method for automatically switching voltage supply to a connected external device
First Claim
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1. A hearing aid device comprising,a hearing aid housing;
- an audio connection at said hearing aid housing configured for connection to an external device exhibiting an external device load at said audio connector;
a voltage supply in said hearing aid housing; and
a load detection and control device connected in said hearing aid housing between said voltage supply and said audio connector, for detecting said external device load at said audio connector and for automatically controlling a supply of voltage from said voltage supply to said audio connector dependent on the detected external device load.
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Abstract
In a hearing aid device and operating method with automatic switching of the hearing aid voltage supply for an external component connected to an audio input of he hearing aid via a single audio voltage supply contact. A load detection device measures the electrical load at the audio input and switches either the unregulated voltage of the hearing aid battery or the regulated voltage of a voltage regulator in a preamplifier of the hearing aid to the audio input dependent on the measured load.
82 Citations
10 Claims
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1. A hearing aid device comprising,
a hearing aid housing; -
an audio connection at said hearing aid housing configured for connection to an external device exhibiting an external device load at said audio connector; a voltage supply in said hearing aid housing; and a load detection and control device connected in said hearing aid housing between said voltage supply and said audio connector, for detecting said external device load at said audio connector and for automatically controlling a supply of voltage from said voltage supply to said audio connector dependent on the detected external device load. - View Dependent Claims (2, 3, 4, 5)
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6. A method for operating a combination of a hearing aid device and an external device, comprising the steps of:
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electrically connecting an external device to a hearing aid device; supplying said external device with voltage from a voltage source in said hearing aid device; detecting an electrical load that said external device produces on said voltage supply; and automatically electronically controlling supply of said voltage from said voltage supply to said external device dependent on the detected electrical load. - View Dependent Claims (7, 8, 9, 10)
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Specification