Haptic exciters simulate mechanical key movement and act as audio drivers

HiWave Technologies PLC (formerly known as NXT), a provider of electronics solutions for audio and haptics, has announced combined haptic touch and audio exciters for touch panels and screens used in industrial, home automation, automotive and consumer electronic products.

Applications include pad computers, hand-held and integrated displays and controllers.

When used with HiWave driver modules, a pair of NXHX14C exciters disperses bending waves evenly over the surface of touch panels so that users experience the sensation of depressing mechanical keys when they touch the panel surface.

The simulated mechanical movement enhances the human interface, enabling faster and more accurate keystrokes.

The same transducers also convert the touch screen into a flat panel loudspeaker with nominally flat response from 200 Hz to 15 kHz.

This eliminates the need for separate loudspeakers and amplifiers, enabling more compact products with fewer components. It also reduces bill of materials and manufacturing costs.

The exciters are designed for use with touch screens up to 19” and are available in 1-W and 2-W (RMS) versions with nominal drive impedances of 4, 8, 16 or 32 ohms.

Each exciter consists of a 14-mm diameter voice coil mounted on plastic suspension. Overall height is just 11 mm.

Image courtesy: HiWave

More info at: HiWave website