Resolver-to-digital (R/D) converters for aircraft position feedback systems introduced by DDC

BOHEMIA, N.Y. – Data Device Corp. (DDC) in Bohemia, N.Y., is introducing the RD-19231 series of 16-bit resolver-to-digital (R/D) converters for high-performance aerospace, industrial, and commercial positioning systems.

Nov 6th, 2018
By Intelligent Aerospace staff
By Intelligent Aerospace staff

BOHEMIA, N.Y. – Data Device Corp. (DDC) in Bohemia, N.Y., is introducing the RD-19231 series of 16-bit resolver-to-digital (R/D) converters for high-performance aerospace, industrial, and commercial positioning systems.

The motion-control device is for applications like servo motor controls, antenna positioning, aircraft position feedback systems, machine tool and robotic positioning controls, and manufacturing process control systems.

These R/D converters for motion control offer 3.3- or 5-volt compatibility and are contained in a small 64-pin plastic quad flat pack that measures 10 by 10 millimeters. It is a drop-in replacement to all RD-19230 legacy designs, and replacement requires no modification of the circuit board.

This single SOI CMOS monolithic chip merges precision analog circuitry with digital logic, and offers accuracy to 1 arc minute. The RD-19231 offers user programmable encoder emulation, resolution, bandwidth, tracking rate, and velocity scaling.

Related: DDC debuts AC solid-state power controller for aircraft

An internal encoder emulation feature with independent resolution control enables the RD-19231 to emulate incremental optical encoder output signals.

The RD-19231 accepts two sets of bandwidth components, and its dual-bandwidth feature also enables users to switch the resolution on the fly between 10, 12, 14, or 16-bit settings with minimal upset to velocity and position information.

The RD-19231's plus-or-minus 4-volt velocity output eliminates the need for a tachometer, and can be set with a resistor. Velocity scaling, reversal error, and offset parameters may be externally trimmed for applications requiring tight specifications.

The RD-19231 series operates in temperatures ranging from -40 to 85 degrees Celsius, and is available in lead and RoHS lead-free versions. For more information contact DDC online at www.ddc-web.com.

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