Mechanical-electronic position sensor

Details Mechanical-electronic position sensor Mechanical-electronic position sensor

2005-04-14

2009-06-23

Ip, Paul (Department: 2837)

Electricity: motive power systems

Synchronous motor systems

Brushless motor closed-loop control

C318S432000, C318S434000, C318S466000, C318S652000

Reexamination Certificate

active

07550938

ABSTRACT:
A mechanical-electronic position sensor in which the wiper voltage of a potentiometer actuated by a plunger is measured, processed by a microcontroller, and is available as an analog output signal via an output stage. In the event that watchdog signals fail to appear because of a malfunction of the microcontroller, two monitoring stages deactivate the output stage. The monitoring stages themselves are tested by regularly interrupting the watchdog signals for a short time while the output stage is maintained active.

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