A low voltage micropower digital Class D amplifier modulator for hearing aids

• Main Authors: Adrian, Victor, Chang, Joseph Sylvester, Gwee, Bah Hwee
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2010
• Subjects: DRNTU::Engineering::Electrical and electronic engineering
• Online Access: https://hdl.handle.net/10356/92040; http://hdl.handle.net/10220/6249
• Institution: Nanyang Technological University

We present a micropower digital modulator for class-D amplifiers for power-critical digital hearing aids. The modulator design embodies a proposed Lagrange interpolation (a combined first- and second-order Lagrange) algorithmic pulsewidth modulation (PWM) and a third-order DeltaSigma noise shaper. B...