Electrical resistors – Mechanically variable – Movable contact electrically adjustable over length of...
Patent
1993-06-17
1994-09-06
Lateef, Marvin M.
Electrical resistors
Mechanically variable
Movable contact electrically adjustable over length of...
34087038, 345157, 345161, H01C 1016, G06F 3033
Patent
active
053452143
ABSTRACT:
A position indicator for producing a variable maximum, variable resistance for supplying a variable amplitude signal to a computer indicating the degree of displacement of a controlled element along an axis includes a variable resistance resistor; a variable displacement element coupled to the variable resistor for varying the resistance of the variable resistor according to displacement of the element along an axis; a first fixed resistance resistor connected to first and second terminals of a transistor, the transistor being connected in series with the variable resistor to form a first series circuit; a second fixed resistance resistor, a potentiometer having a fixed resistance and a variable position contact, and a third fixed resistance resistor connected in series as a second series circuit that is connected in parallel to the first series circuit; and an amplifier having a first inverting input terminal and a second non-inverting input terminal connected to the variable resistor and the variable position contact, respectively, and an output terminal connected to a control terminal of the transistor.
REFERENCES:
patent: 3644911 (1972-02-01), Wiles et al.
patent: 4977397 (1990-12-01), Kuo et al.
Lateef Marvin M.
STD Electronic International Ltd.
LandOfFree
Variable range position indicator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Variable range position indicator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable range position indicator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1332146