Slide device

Recently, there has been increasing demand for input devices with high operability to match advances in the functions and multiple functions of electronic equipment.
An input device with high operability is one that emulates certain human senses by producing analog output.
Here, we introduce an analog input slide device that uses a Hall element and is ideal for zooming camera lenses and scrolling screens, etc.

Slide device using Hall elements

• Analog output of displacement of the input key can be obtained and high operability is achieved.
• It is possible to miniaturize and reduce the thickness of the control element.
• Durability is high because of non−contact detection.
• Because magnetism is detected, it is more resistant to tiny particles of dirt, dust, or oil.

Principle

When the magnet is inclined or moved sideways, the magnetic flux density penetrating two Hall elements changes, and output voltage proportional to the inclination and displacement of the magnet is obtained by reading the difference between the two output voltages.

Example of composition

Here are two typical examples of slide device composition using Hall elements.

This example is composed of two Hall elements that detect the magnetic field in the vertical direction, and one magnet.
By inclining the magnet, higher operability and high output voltage can be obtained.

This example comprises two Hall elements that detect the magnetic field in the horizontal direction, and one magnet.
The device can be made thinner because a method of sliding the magnet horizontally is used.

Recommended applications

Because the Hall elements used in a slide device should be small, highly sensitive to and having high linearity to the magnetic field, and stable under different temperatures, etc., the following products are recommended:

Introduction of products > Hall element > Line−up > HQ series

Compositions and product selection

Please contact us about layouts, sizes, etc.