InventorsUS Classes381/322, Specified casing or housing330/127WITH CONTROL OF POWER SUPPLY OR BIAS VOLTAGEAttorney, Agent or FirmInternational Classes H04R 25/00 H03G 3/00 Issued Patent Number:8160284
Abstract textCertain embodiments of the present technology provide improved amplification circuits and hearing aids that can utilize such amplification circuits. In an embodiment, for example, an amplification circuit includes: a first sub circuit configured to create a voltage drop when a supply voltage is above a first voltage; and a second sub circuit configured to create a reverse voltage drop when the supply voltage is below a second voltage, wherein the first and second sub circuits operate to maintain idling current within a range. Certain embodiments of the present technology also provide hearing aids that include removable dampers. |