An integrated 12-V electret earphone driver with symmetric Cockcroft-Walton pumping topology for in-ear hearing aids

@article{Tsai2012AnI1,
  title={An integrated 12-V electret earphone driver with symmetric Cockcroft-Walton pumping topology for in-ear hearing aids},
  author={Jen-Huan Tsai and Chun-Yen Tseng and Wei-Kai Tseng and Tim K. Shia and Po-Chiun Huang},
  journal={2012 IEEE Asian Solid State Circuits Conference (A-SSCC)},
  year={2012},
  pages={45-48}
}
Electret-type earphone exhibits a great potential on in-ear hearing-aid applications for the low driving power requirement. However, to enable a static force for thin film's vibration, the input voltage swing has to be large. Instead of using HV technology, in this work we develop a 12-V bridge-type audio driving system by a standard 1.8-V 0.18-μm CMOS. The… CONTINUE READING