The PowerHap employs cymbals on both sides of the plate as levers to amplify the contraction by a factor of 15 in the z-axis. Once activated, the piezo plates only expand minimally in the z-axis but, due to the constant volume of the piezo effect, contract simultaneously in both the x and y axes. This allows the actuators to be driven with relatively low operating voltages up to 120V. In fiscal 2019, TDK posted total sales of USD 12.5 billion and employed about 105,000 people worldwide.The PowerHap consists of multilayer piezo plates with copper inner electrodes. The company has a network of design and manufacturing locations and sales offices in Asia, Europe, and in North and South America. TDK focuses on demanding markets in the areas of information and communication technology and automotive, industrial and consumer electronics. These products are marketed under the product brands TDK, EPCOS, InvenSense, Micronas, Tronics and TDK-Lambda. In addition, TDK provides power supplies and energy devices, magnetic heads and more. The product spectrum also includes sensors and sensor systems such as temperature and pressure, magnetic, and MEMS sensors. TDK's comprehensive portfolio features passive components such as ceramic, aluminum electrolytic and film capacitors, as well as magnetics, high-frequency, and piezo and protection devices. It was established in 1935 to commercialize ferrite, a key material in electronic and magnetic products. TDK Corporation is a leading electronics company based in Tokyo, Japan.
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