Precision inductive voltage converter

Details Precision inductive voltage converter Precision inductive voltage converter

G - Physics

01

R

324/66

G01R 17/16 (2006.01)

Patent

CA 1129007

ABSTRACT OF THE DISCLOSURE A precision inductive voltage converter comprises an inductive voltage divider having a magnetizing winding, a positive feedback winding, a negative feedback winding, and output windings connected in series; an operational amplifier incorporating a magnetizing winding and a negative feedback winding of the inductive voltage divider, both windings being placed in a negative feedback circuit of said operati- onal amplifier; a filter whose input is connected through the positive feedback winding to an output of the operatio- nal amplifier, and output connected to an inverting input of the operational amplifier; a bipolar reference voltage source having a negligibly small dc voltage component at its output, said source being connected to an input of the inductive voltage divider; an output unit connected to an output of the inductive voltage divider und adapted to convert the output voltage of the same divider. The precision inductive voltage converter makes it pos- sible to produce precision potentiometers, calibrators, di- gital-to-analog and analog-to-digital converters, including those of accuracy grad 0,00005, simple in construction and easy in manufacture.

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