TIDUFK1 August   2026

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1System Description
    1. 1.1 Terminology
    2. 1.2 Key System Specifications
  8. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
      1. 2.2.1 Low Signal Amplitude
      2. 2.2.2 Sensitivity to Noise
      3. 2.2.3 Integrator limitation
      4. 2.2.4 Effect of Artificial Loads
      5. 2.2.5 Stray Magnetic Field Interference
      6. 2.2.6 Crosstalk
      7. 2.2.7 Mechanical Limitations
      8. 2.2.8 Human Errors
    3. 2.3 Highlighted Products
      1. 2.3.1 TLV4387
      2. 2.3.2 ADS131M08
      3. 2.3.3 MSPM0G1506
      4. 2.3.4 ISO6731
      5. 2.3.5 TPS70933
      6. 2.3.6 TRS3232
      7. 2.3.7 CDC6CE
  9. 3System Design Theory
    1. 3.1 Rogowski Coil
    2. 3.2 Hardware Integrator
  10. 4Hardware, Software, Testing Requirements, and Test Results
    1. 4.1 Hardware Requirements
    2. 4.2 Software
    3. 4.3 Test Setup
      1. 4.3.1 Header Information
    4. 4.4 Getting Started
      1. 4.4.1 Software Installation
      2. 4.4.2 GUI Setup
        1. 4.4.2.1 Calibration
    5. 4.5 Test Results
      1. 4.5.1  Active Power Accuracy Measurements
      2. 4.5.2  Active Power Accuracy Measurements (PF≠1)
      3. 4.5.3  Reactive Power Accuracy Measurements
      4. 4.5.4  Reactive Power Accuracy Measurements (PF≠1)
      5. 4.5.5  Voltage Variation Accuracy Measurements
      6. 4.5.6  Frequency Variation Accuracy Measurements
      7. 4.5.7  Equality of Current Circuits Accuracy Measurements
      8. 4.5.8  Phase Reversal Accuracy Measurements
      9. 4.5.9  Temperature Variation Accuracy Measurements
      10. 4.5.10 Crosstalk Accuracy Measurements
      11. 4.5.11 Effect of External Magnetic Fields Accuracy Measurements
  11. 5Design and Documentation Support
    1. 5.1 Documentation Support
    2.     Trademarks
  12. 6About the Author

4.5.10 Crosstalk Accuracy Measurements

Objective: calibrate each phase independently, apply 20A on phase one and record measured current on phase one, apply 100A on phase two with 180° phase offset (worst case), and observe the effect of crosstalk on phase one. Repeat process for phase two and phase three. Effect of crosstalk must stay below allowable limit.

TIDA-011013 TIDA-011013 Immunity to Crosstalk Figure 4-19 TIDA-011013 Immunity to Crosstalk

Observations: x-axis represents the different cases that TIDA-011013 was tested at. Cases are described in table below. TIDA-011013 was able to stay within the allowable error with external magnetic fields generated by neighboring phases at all cases.

Table 4-1 Crosstalk Test Cases
Case I1 I2 I3
1 20A 0 0
2 20A 100A 0
3 0 20A 0
4 100A 20A 0
5 0 20A 100A
6 100A 20A 100A
7 0 0 20A
8 0 100A 20A