US 12,081,945 B2
Hearing device having a power source
Kåre Tais Christensen, Smørum (DK)
Assigned to Oticon A/S, Smørum (DK)
Filed by Oticon A/S, Smørum (DK)
Filed on May 27, 2022, as Appl. No. 17/827,110.
Claims priority of application No. 21176453 (EP), filed on May 28, 2021.
Prior Publication US 2022/0386045 A1, Dec. 1, 2022
Int. Cl. H04R 25/00 (2006.01); H02M 1/00 (2006.01); H02M 3/07 (2006.01)
CPC H04R 25/602 (2013.01) [H02M 1/0045 (2021.05); H02M 3/07 (2013.01); H04R 25/30 (2013.01); H04R 25/603 (2019.05); H04R 2225/31 (2013.01); H04R 2225/33 (2013.01); H04R 2225/61 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A hearing device comprising:
a power source; and
a switched capacitor DC-DC converter electrically connected to the power source and comprising:
an input part configured for receiving charge from the power source at an input voltage of an input voltage range;
an output part comprising multiple output ports, the output part being configured for supplying charge to the multiple output ports for providing at least three predefined output voltages;
at least three flying capacitors configured for redistributing charge from the power source to the multiple output ports and/or in between the output ports; and
a switching circuitry comprising a plurality of switches configured for electrically switching the switched capacitor DC-DC converter based on a switching scheme so as to provide the multiple predefined output voltages based on the input voltage,
wherein the switching scheme comprises a switching configuration comprising at least three switching sub-configurations, each switching sub-configuration being applied during an associated phase and each switching sub-configuration providing associated connections for each flying capacitor.