SLOA338
March 2025
TSD5402-Q1
1
Abstract
Trademarks
1
Introduction TO RESOLVER and LVDT sensors
2
Conventional Excitation Amplifier
3
Excitation Amplifier Using Class-D Amplifiers
4
Class-D Resolver Excitation Design Details
4.1
Components Selection for the Power Stage
4.2
Input Filter Components Selection
5
Practical Experiments
5.1
Test Setup
5.2
Output Waveforms for Default Conditions
5.3
Amplifier Transfer Function
5.4
Using PWM for Generating the Reference Signal
5.5
Thermal Image and Comparison Against the Linear Design
5.6
Output Spectrum
5.7
Total Harmonic Distortion (THD)
5.8
Fail Events
6
Summary
7
References
7
References
Texas Instruments,
Applying the ALM2403-Q1 Single-Chip Resolver Solution to Reduce System Costs, and Improve the Reliability and Performance of Automotive and Industrial Applications
application report.