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Hearing device comprising switched capacitor DC-DC converter with low electromagnetic emission

A technology of DC-DC and hearing equipment, applied in the direction of conversion equipment without intermediate conversion to AC, switched capacitor network, output power conversion device, etc., can solve the problem of limiting the maximum physical distance and so on

Active Publication Date: 2018-11-13
GN HEARING AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The compact housing size limits the maximum physical distance between the magnetic induction antenna and the DC-DC power converter and its associated leads and external components

Method used

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  • Hearing device comprising switched capacitor DC-DC converter with low electromagnetic emission
  • Hearing device comprising switched capacitor DC-DC converter with low electromagnetic emission
  • Hearing device comprising switched capacitor DC-DC converter with low electromagnetic emission

Examples

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Embodiment Construction

[0034] Hereinafter, various exemplary embodiments of a head-worn hearing device (for example, a hearing aid) including a switched capacitor DC-DC converter and a magnetic induction antenna will be described with reference to the accompanying drawings. Those skilled in the art will understand that the drawings are schematic and simplified for the sake of clarity and therefore only show details necessary for understanding the invention, while others are omitted. Like reference numerals refer to like elements or components throughout. Therefore, the same elements or components will not necessarily be described in detail with respect to each drawing. Those skilled in the art will further appreciate that certain actions and / or steps may be described or depicted in a particular order of occurrence, while those skilled in the art will understand that such designations as to order are not actually required.

[0035] figure 1 A simplified schematic block diagram of an exemplary heari...

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PUM

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Abstract

The present invention relates to a head-wearable hearing device which comprises a magnetic inductance antenna having a predetermined resonance period for receipt of wireless data signals and a switched capacitor DC-DC converter configured for converting a DC input voltage into a higher or lower DC output voltage in accordance with a clock signal. The charge pump circuit is configured to charge anoutput capacitor by output current pulses where the output current pulses at least comprise first and second consecutive output current pulses having a mutual pulse delay corresponding to substantially one-half of the predetermined resonance period of the magnetic inductance antenna.

Description

technical field [0001] The present invention relates to a head-mounted hearing device comprising: a magnetic induction antenna having a predetermined resonance period for receiving a wireless data signal; and a switched capacitor DC-DC converter configured to convert a DC input voltage according to a clock signal for higher or lower DC output voltages. The charge pump circuit is configured to charge the output capacitor by output current pulses, wherein the output current pulses comprise at least successive first and second output current pulses having a mutual phase corresponding to substantially half of a predetermined resonant period of the magnetic induction antenna. pulse delay. Background technique [0002] Switched capacitor DC-DC power converters are known in the art and have previously been applied to various types of head-worn hearing devices, such as hearing aids and hearing instruments. Switched capacitor DC-DC power converters are commonly used to convert a DC...

Claims

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Application Information

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IPC IPC(8): H02M3/07H02M1/44H04R1/32
CPCH02M1/44H02M3/073H04R1/32H02M3/075H02M3/18H03H19/004H04R2225/61H04R25/554H02M3/07H04R2225/51H04R2225/33H04B5/26H04R25/505H02M3/072
Inventor 丹尼斯·厄兰德·拉森伊万·里斯·尼尔森
Owner GN HEARING AS