Circuit arrangement for two-stage, ultra-high vacuum-compatible limit switch, has switch unit consisting of electrically conductive, mechanical actuator, control circuit, and output with ground connection

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This patent describes a circuit arrangement for a two-stage limit switch that operates in ultra-high vacuum conditions. The system includes a mechanical actuator, a control circuit, and an output connected to the ground. The control circuit is designed to detect and signal short circuits or interruptions in connected circuits, using three resistors for balanced voltage management.

Use CasesContent extracted from patent full text and abstract with AI.

• Industrial systems requiring reliable position or safety limits in ultra-high vacuum environments, such as semiconductor manufacturing equipment.
• Scientific apparatus in vacuum chambers where electrical limit switches are needed to control or protect moving components.
• Aerospace or research facilities requiring robust electromechanical limit detection under vacuum.
• Automated processes in cleanroom environments where contamination must be avoided.

BenefitsContent extracted from patent full text and abstract with AI.

• Enables reliable limit switch operation in ultra-high vacuum, where conventional switches may fail.
• Provides clear electrical indication of short circuits or interruptions, enhancing system safety.
• Voltage balancing through resistors improves reliability and accuracy of signal detection.
• Mechanical actuator design allows for straightforward integration with existing moving systems.
• Ground-connected output increases electrical safety and compatibility.

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Patent Abstract

The circuit arrangement has a switch unit consisting of an electrically conductive, mechanical actuator, a control circuit, and an output with ground connection. The control circuit has an input for feeding the supply voltage, a signal generator for the case of short circuit of a circuit and a signal generator for the case of discontinuation of another circuit. Three resistors are provided for voltage balance, where the former resistor is connected upstream in front of the two circuits.