Haptic actuators come with Immersion Corp license

Vishay has added five solenoid-based haptic actuators to its IHPT range, which come with operation licenses from Immersion Corporation.

Vishay haptic transducers

There are four sizes, from 29 x 21mm to 44 x 37mm, that can provide forces up to 120N.

Not immediately obvious from the photo, each transducer us in two parts: the top left part is a separate laminated metal bar designed to be attached to the touch plate with two screws, and the rest of it is a laminated U-core with a coil designed to be screwed to a solid mount – with a device-dependent gap of ~1mm between them.


“The actuators are perfect for rugged, noisy environments where audio tones may not be adequate to communicate actuation to the user,” according to Vishay. “Vishay has an agreement with Immersion that allows customers that purchase the Vishay IHPT a pass-through license to use the IHPT with direct licensing with Immersion. This greatly simplifies IP management for the customer.”


These licences are not comprehensive – exclusions include devices for gaming, virtual reality and “sexual wellness”, according to Vishay.

One of the parts, IHPT1411AFELR73ABA (black in photo), is AEC-Q200 qualified and intended for electronic shift controls, steering wheels and other in-vehicle controls.

The other four (table below) are expected to be used in factory automation, consumer appliances and audio studios, as well as in medical, military and avionics equipment. Vishay haptic transducer circuit

Vibrations are produced by applying a pulse or pulses at between 8 and 16V amplitude, and response is in 5ms. As an example, the automotive version with a 0.75 mm gap can impart 6g acceleration to a 0.5kg load after a 12V 5ms pulse, said Vishay.

Operation is across -40 to +105°C.

Coils (see table) offer inductance down 1.8mH and 1Ω, and their dielectric can withstand 150Vdc.

IHPT… Force
out
Force
coefficient
Inductance Resistance
typical
Resistance
maximum
AEC-
Q200
..1411AFELR73ABA 80N 0.73 1.8mH 0.95Ω 1.09Ω yes
..1207AGELR39AB0 25 0.39 1.35 0.95 1.04 no
..1710ACEL1R2AB0 45 1.2 4.04 2.0 2.2 no
..1411AFELR73AB0 80 0.73 1.8 0.95 1.09 no
..1614ACEL2R7BB0 120 2.7 3.5 1.2 1.32 no

Custom version are also available.

Find the automotive qualified IHPT1411AFELR73ABA in this data sheet, and get an insight into Vishay’s Immersion license here


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