Haptic feedback actuator ready for touchscreens, joysticks

November 09, 2021 // By Peter Clarke
Haptic feedback actuator ready for touchscreens, joysticks
Vishay Intertechnology Inc. has introduced a customizable haptic feedback actuator for touchscreens, joysticks, and touch switch panels in commercial applications.

The Vishay Custom Magnetics IHPT-1411AF-AB0 operates up to +105 °C, and is suitable for rugged environments.

The IHPT-1411AF-AB0 is an electromagnetic device that converts electrical energy into a mechanical pulse or vibration for touch-based interaction that can be varied by power amplitude and duty cycle of the input voltage. The haptic coil assembly, when energized by a DC voltage pulse, creates a magnetic field that attracts the mounted dynamic core piece. When deenergized, the core piece is returned back to its original position by the customer-supplied spring assembly.

The device's fast response time of less than 5ms can be varied to produce multiple haptic effects with a nominal operating voltage of 12V and a maximum voltage rating to 16 V.

Typical end products will include LCD displays used in industrial appliances, building and factory automation and control systems, and electronic point of sale (POS) systems; medical monitoring, diagnostic, and surgical equipment; handheld radios; game or simulation controllers; and barcode scanners. Applications can also include rotary or joystick control devices, along with touch switch and button control panels.

The device can drive a 0.5kg load to 6g of acceleration with a 12V, 5ms pulse. The driving coil has an inductance of 1.8mH, typical DCR of 0.95Ω, and a coil to core dielectric withstand voltage of 150Vdc. RoHS-compliant, halogen-free, and Vishay Green, the actuator's standard lead terminations are dipped in 100 percent tin solder. Vishay can customize the IHPT-1411AF-AB0's mounting orientation, termination types, and performance to any design's specifications.

Samples and production quantities of the new haptic feedback actuator are available now, with lead times of 12 weeks.

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