![]() “Haptic feedback is not just limited to a user experience though, as it can help keep the driver’s eyes on the road and reduce driver distraction.” “Haptic feedback in vehicles is becoming a lot more popular as the user experience continues to evolve inside of the vehicle,” commented Kyle Davis, Technical Research and Data Analyst for IHS Markit. “We solved that problem, and created a driver that takes the low voltage and generates the required high voltage.” The BOS1211 has been designed to support TDK’s family of 120V PowerHap piezoelectric actuators. ![]() “When you try to generate high voltage in consumer or in car applications, if you don’t have good electronics, you will basically burn all your energy to increase that voltage, and that will make the overall system inefficient even though the actuator itself is efficient,” Simon Chaput, Boréas’ founder and CEO, told EE Times. This approach compares with the more traditional haptic actuators: eccentric rotating mass (ERM) motor and linear resonant actuator (LRA). The BOS1211 IC has been developed using Boréas’ patented CapDrive technology, a scalable high-voltage piezoelectric driver architecture that takes advantage of the piezoelectric material. (Bromont, Canada) is rolling out what it claims is the first low-power high-voltage piezoelectric driver IC to enable high-definition haptic feedback in automotive human machine interfaces. Boréas’ BOS1211Īt CES 2020, Boréas Technologies Inc. Haptic technologies simulate the sense of touch by triggering forces, vibrations or motions to the drivers, and are increasingly used by the automotive industry as a way to confer a safer, more informed and more intuitive user experience. Low energy consumption of only 0.35 mJ or 0.From turning the steering wheel to pressing down the accelerator pedal, the driving experience is very tactile.Short response time of less than one millisecond.High acceleration of 3.3 g (pk) or 5 g (pk).Small dimensions of only 9 x 3.75 x 1.4 mm or 12 x 4 x 1.8 mm.Typical application areas for the new PowerHap actuators include smartphones and tablets, household appliances, game consoles, VR/AR equipment, digitizers, and handheld medical devices. Due to their outstanding performance, PowerHap actuators are technologically superior to conventional electromagnetic solutions such as ERM motors (eccentric rotary mass) and LRA actuators (linear resonant actuator). In addition to the actuator properties, PowerHap also offers strong sensing functionality by using the inversepiezo effect. A key feature is the low energy consumption of only 0.35 mJ or 0.6 mJ per feedback. PowerHap features high acceleration and large forces in a very compact design, coupled with a short response time of less than one millisecond. At the maximum operating voltage of 60 V, they can accelerate a mass of 100 grams at 3.3 g (pk) or 5 g (pk) with maximum displacements of 15 µm or 27 µm, respectively. These new actuators have smaller dimensions of 9 x 3.75 x 1.4 mm and 12 x 4 x 1.8 mm, respectively. TDK Corporation announced that it has extended its portfolio of PowerHap piezo actuators for haptic feedback with the new miniature rectangular 0904H014V0H018V060 actuators.
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