Browse Prior Art Database

Hall Effect Detector and Miniswitch

IP.com Disclosure Number: IPCOM000083141D
Original Publication Date: 1975-Apr-01
Included in the Prior Art Database: 2005-Mar-01
Document File: 2 page(s) / 39K

Publishing Venue

IBM

Related People

Arnold, AJ: AUTHOR [+4]

Abstract

In Fig. 1 there is shown a ceramic substrate subassembly 10 including a printed-circuit pattern 11 and a joined Hall chip 12. Two slots 13 are provided in the substrate which receive the outer ends of an E-shaped flux concentrator core 14, positioned in the base portion of a miniswitch module 15 shown in Fig. 2.

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Hall Effect Detector and Miniswitch

In Fig. 1 there is shown a ceramic substrate subassembly 10 including a printed-circuit pattern 11 and a joined Hall chip 12. Two slots 13 are provided in the substrate which receive the outer ends of an E-shaped flux concentrator core 14, positioned in the base portion of a miniswitch module 15 shown in Fig. 2.

The substrate 10 is positioned so that the center leg of the E-shaped flux concentrator 14 is in close proximity with the Hall chip 12. The upper half of the module 15 contains a push button 16 for slideably operating a permanent magnet 17 against a bias spring 18.

By removing the upper half of the module 15, the substrate 10 and E-shaped flux concentrate assembly 14 forms a proximity detector as shown in Fig. 3. The present miniswitch design provides for improved functional efficiency and cost reduction.

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