Advancements in the audio industry surge the demand for Class D Amplifiers
Inkwood Research
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The audio industry is revolutionizing with OTT platforms, noise-free parties, integrated sound technology gadgets, and other evolutionary ideas gaining momentum. As a result, new technology in sound devices is advancing rapidly. In this regard, Class-D audio amplifiers are receiving special attention in the industry.
A Class-D audio amplifier refers to a switching or a Pulse Width Modulation (PWM) amplifier. Here, the audio signal modulates a PWM carrier signal that drives the output devices, with the final stage being a low pass filter that removes the high PWM carrier frequency.
Additionally, these amplifiers are available in distinct shapes and sizes, with some having digital inputs and others analog inputs. In terms of functioning, they rapidly switch between the supply rails, fed by a modulator that encodes the audio input into a pulse train using pulse width, pulse density, or related approaches.
The high demand for Class-D audio amplifiers is mainly owing to:
·????????Augmented use of audio devices?
·????????Increased demand for electronic and gasoline vehicles.
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Diodes Incorporated?launched the PAM8965 Class-D audio power amplifier with an inbuilt synchronous boost converter in October 2021. This high-efficiency gadget is designed for AI-enabled speakers and portable musical instruments, where high output power, long battery life, and compact design are vital considerations.
Besides, companies such as?Marshall Amplification,?Qualcomm,?Analog Devices,?Diodes Incorporated, and others are heavily investing in Class-D audio amplifiers and related devices such as headphones, earbuds, speakers, audio infotainment systems, home theatres, and so on. This is because of the high efficiency and easy availability of raw materials.