GENERAL DESCRIPTION

The AD2S105 performs the vector rotation of three-phase 120 degree or two-phase 90 degree sine and cosine signals by transferring these inputs into a new reference frame which is controlled by the digital input angle φ. Two transforms are included in the AD2S105. The first is the Clarke transform which computes the sine and cosine orthogonal components of a three-phase input. These signals represent real and imaginary components which then form the input to the Park transform. The Park transform relates the angle of the input signals to a reference frame controlled by the digital input port. The digital input port on the AD2S105 is a 12-bit/parallel natural binary port.

FEATURES

Current Conditioning

Complete Vector Transformation on Silicon

Three-Phase 120° and Orthogonal 90° Signal Transformation

Three-Phase Balance Diagnostic–Homopolar Output

DQ Manipulation

Real-Time Filtering

APPLICATIONS

AC Induction Motor Control

Spindle Drive Control

Pump Drive Control

Compressor Drive Control and Diagnostics

Harmonic Measurement

Frequency Analysis

Three-Phase Power Measurement