A −91 dB THD+N, Class-D Piezoelectric Speaker Driver Using Dual Voltage/Current Feedback for Resistor-Less LC Resonance Damping
S Karmakar, M Berkhout… - IEEE Journal of Solid …, 2022 - ieeexplore.ieee.org
This article presents a Class-D audio amplifier for capacitive piezoelectric speaker loads.
Employing a dual voltage feedback (VFB)/current feedback (CFB) topology, the amplifier is …
Employing a dual voltage feedback (VFB)/current feedback (CFB) topology, the amplifier is …
A 0.4-mA-quiescent-current, 0.00091%-THD+ N class-D audio amplifier with low-complexity frequency equalization for PWM-residual-aliasing reduction
YZ Qiu, SH Chien, TH Kuo - IEEE Journal of Solid-State …, 2021 - ieeexplore.ieee.org
This article proposes a low-complexity frequency equalization technique for pulsewidth
modulation (PWM)-residual-aliasing reduction in closed-loop Class-D audio amplifiers to …
modulation (PWM)-residual-aliasing reduction in closed-loop Class-D audio amplifiers to …
A 0.00055% THD N Class-D Audio Amplifier With Capacitive Feedforward PWM and Wide-Band Aliasing Reduction
K Zhou, J Zhou, Y Tang, J Li, Z Hong… - IEEE Journal of Solid …, 2024 - ieeexplore.ieee.org
Linearity of Class-D audio amplifier based on conventional closed-loop pulsewidth modulat
ion (PWM) is deteriorated by large swing of loop filter and input-dependent comparator …
ion (PWM) is deteriorated by large swing of loop filter and input-dependent comparator …
21.2 A 0.81 mA,-105.2 dB THD+ N Class-D Audio Amplifier with Capacitive Feedforward and PWM-Aliasing Reduction for Wide-Band-Effective Linearity Improvement
K Zhou, J Zhou, Y Tang, J Li, Z Hong… - 2024 IEEE International …, 2024 - ieeexplore.ieee.org
In Class-D audio amplifiers (CDAs), nonlinearity of power stages and pulse-width-
modulation (PWM) modulators poses a main challenge in pursuit of high-fidelity audio …
modulation (PWM) modulators poses a main challenge in pursuit of high-fidelity audio …
A-91 dB THD+ N Resistor-Less Class-D Piezoelectric Speaker Driver Using a Dual Voltage/Current Feedback for LC Resonance Damping
S Karmakar, M Berkhout… - … Solid-State Circuits …, 2022 - ieeexplore.ieee.org
Piezoelectric speakers are gaining popularity on account of their improving form-factor and
audio quality, making them a good fit for many audio applications such as in televisions …
audio quality, making them a good fit for many audio applications such as in televisions …