Circuit arrangement for controlling a rotary-magnet measuring in

Details Circuit arrangement for controlling a rotary-magnet measuring in Circuit arrangement for controlling a rotary-magnet measuring in

1986-09-16

1988-05-31

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Nonlinear

307490, 324123C, 328142, G01R 1510

Patent

active

047484063

ABSTRACT:
A circuit arrangement for controlling a rotary-magnet measuring instrument (6) by an input voltage via a controlled source of current has a first amplifier (difference amplifier 1) with a first negative-feedback resistor (R.sub.2) and a first input resistor (R.sub.1). In order to linearize the approximately S-shaped characteristic curve of the rotary-magnet measuring instrument (6), the controlled source of current is developed with a characteristic curve which is defined as consisting of three straight line segments of differing slope. For this, a second amplifier (difference amplifier 8), controlled as a function of the input voltage and a semiconductor path controlled by it (2nd npn-transistor 12) which lies in series with the first input resistor (R.sub.1) are provided. One input (10) of the second amplifier is connected to a constant voltage divider (divider resistors R.sub.3, R.sub.5) and via a second negative-feedback resistor (R.sub.4), to the controlled semiconductor path and the first input resistor (at point Y). The resistances of the second negative feedback resistor (R.sub.4) and of the constant voltage divider (divider resistors R.sub.3 , R.sub.5) are small as compared the resistance of the first input resistor (R.sub.1).

REFERENCES:
patent: 4147989 (1979-04-01), Brolde
patent: 4395678 (1983-07-01), Pelta

Affiliated with

Also associated with

Rating

Circuit arrangement for controlling a rotary-magnet measuring in does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit arrangement for controlling a rotary-magnet measuring in, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit arrangement for controlling a rotary-magnet measuring in will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1876683