Switch Sensor

Kiran A

Intellectual 610 points

Other Parts Discussed in Thread: LDC1312, LDC0851

Hello ,

We need to identify position of below switches:

1) Rotary switch

2) Push Button Switch

Please suggest possible sensors to identify the same.

over 6 years ago

0 Luke LaPointe over 6 years ago

TI__Genius 13335 points

Hello Kiran,

Inductive sensing can be used for both rotary switch applications and push button switch applications. I would recommend to take a look at our design collateral:

Application notes: http://www.ti.com/lsds/ti/sensing-products/inductive-sensing/inductive-sensing-technical-documents.page?familyId=3244&docCategoryId=1

TI Designs and Evaluation Tools: http://www.ti.com/lsds/ti/sensing-products/inductive-sensing/inductive-sensing-tools-software.page

Specifically I would start with the following reference designs:

Rotary:

Absolute position:
- 1 degree reference dial: http://www.ti.com/tool/tida-00508
Incremental position:
- 32 position incremental encoder using LDC1312: http://www.ti.com/tool/tida-00615
- 32 position incremental encoder using LDC0851: http://www.ti.com/tool/tida-00828

Push Button:

16 Button Snap Dome Keypad: http://www.ti.com/tool/tida-00509
16 Button Stainless Steel Keypad: http://www.ti.com/tool/tida-01102

Regards,
Luke LaPointe

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Switch Sensor