Piezo actuators to create audio or haptic feedback on any surface
Dragonfly™ by FLORA is the world’s first full range (60 – 20 kHz) ultra thin piezo actuator. It can be easily mounted onto any surface to transform it into either a full range speaker or a haptic device with a broad operating frequency range. This makes it a viable alternative to the traditional electrodynamic loudspeaker and haptic technology.
Piezo actuators have served as alarms and speakers for decades, offering advantages such as a slim profile and low power consumption. Yet, their effectiveness hinges on their capability to reproduce low frequencies. Unfortunately, conventional piezo speakers struggle to produce audio frequencies below 400Hz, leading to minimal or even nonexistent bass output.
Dragonfly™ is meticulously designed and optimized by top minds in Silicon Valley, employing state-of-the-art DOE and numerical simulation techniques. This effort has resulted in a flat frequency response ranging from 60 to 20 kHz. Furthermore, it provides customization capabilities to adjust the frequency response range and output power to align with the specific needs of any application.
Piezo materials are typically brittle and can face reliability challenges stemming from drops, handling, cyclic use, and environmental stress. To address these concerns, Dragonfly™ incorporates robust protective layers for full encapsulation. Furthermore, advanced structural optimization through numerical simulation and design of experiments (DOE) ensures the piezo layers remain crack-resistant, even under extreme deflection.
Thanks to its innovative and highly optimized design (patent pending), Dragonfly™ surpasses both conventional electrodynamic (cone) speakers and other piezo speakers in every aspect.
In this video, it is demonstrated that a piezoelectric speaker including two Dragonfly™ units attached to an unoptimized plastic panel can achieve a comparable level of audio performance to that of a popular electrodynamic Bluetooth speaker. This showcases the impressive capabilities of the Dragonfly™ in delivering high-quality audio output.
Being ultra thin, lightweight, and efficient, Dragonfly™ audio offers distinct advantages that pave the way for a multitude of potential applications. It provides hardware designers with an exceptional opportunity to create innovative audio solutions that were previously beyond reach.