Load sensor driver apparatus

Details Load sensor driver apparatus Load sensor driver apparatus

1993-06-08

1995-02-21

Wambach, Margaret Rose

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

327 73, 327306, 327332, H03K 301

Patent

active

053919343

ABSTRACT:
A driver apparatus for driving one or more electrical loads includes an oscillator for providing an input signal. An amplifier amplifies the input signal. A power transformer has a primary winding for receiving the amplified input signal and at least one secondary winding for providing a drive signal to drive one or more electrical loads. The driver apparatus may include a center tap for the secondary windings or a precision resistive network for providing a pair of diametrically symmetrical drive signals at each secondary winding. A drive signal from one of the secondary windings is compared to a reference signal in an automatic gain control loop for application to the oscillator. An average drive signal could also be derived from one output from each secondary winding to be compared to the reference signal for forming the gain automatic control loop.

REFERENCES:
patent: 4110605 (1978-08-01), Miller
patent: 4490655 (1984-12-01), Feldman
Hal Nelson, "A Sensor System for Aircraft Weight and Balance", Scientific Honeyweller, vol. 8, No. 1, pp. 91-95 (Fall 1987).

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