Magnetic terminal switch circuit

Published:2012/11/6 20:55:00 Author:Ecco | Keyword: Magnetic terminal , switch | From:SeekIC

The differential magnetic sensing element GV3 can constitute terminal switch with accuracy <0.001mm. The circuit can be supplied by 20V power supply or 5V power supply shared with TTL circuit. Circuit current is about 1A. Figure A shows a mechanical structure of the terminal switch, b shows the circuit structure. Diode BAY61 is used to separate the feedback circuit and bridge circuit. The capacitor connected to the op amp input terminal is used to reduce possible interference voltage.



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