SLVUCM2A january   2023  – july 2023 TPSF12C3 , TPSF12C3-Q1

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specifications
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 EVM Description
    2. 2.2 Setup
      1. 2.2.1 High-Voltage Testing
      2. 2.2.2 EVM Connections
      3. 2.2.3 Low-Voltage Testing
    3. 2.3 Header Information
    4. 2.4 EVM Performance Validation
    5. 2.5 AEF Design Flow
      1. 2.5.1 AEF Circuit Optimization and Debug
  9. 3Implementation Results
    1. 3.1 EMI Performance
    2. 3.2 Insertion Loss
    3. 3.3 Surge Immunity
    4. 3.4 SENSE and INJ Voltages
  10. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 Bill of Materials
    3. 4.3 PCB Layout
      1. 4.3.1 Assembly Drawings
      2. 4.3.2 Multi-Layer Stackup
  11. 5Compliance Information
    1. 5.1 Compliance and Certifications
  12. 6Additional Information
    1.     Trademarks
  13. 7Related Documentation
    1. 7.1 Supplemental Content
  14. 8Revision History

1.1 Introduction

The TPSF12C3QEVM evaluation module (EVM) is designed to conveniently evaluate the performance of the TPSF12C3 active filter IC. The EVM helps to improve the CM EMI signature in three-phase AC power systems.

The TPSF12C3 provides a low shunt impedance path for CM noise in the frequency range of interest for EMI measurement and helps to meet prescribed limits for EMI standards, such as:

  • CISPR 11, EN 55011 – Industrial, Scientific and Medical (ISM) applications
  • CISPR 25, EN 55025 – Automotive applications
  • CISPR 32, EN 55032 – Multimedia applications

Enabling up to 30 dB of CM noise reduction at the lower end of specified frequency ranges (for example, 100 kHz to 3 MHz) significantly reduces the footprint, volume, weight and cost of the overall filter, especially the CM chokes that are designed to attenuate lower-order harmonics – and hence are large size.

While rejecting the line-frequency component at 50 Hz or 60 Hz, the TPSF12C3 senses the high-frequency CM noise-voltage disturbance on each power line using three or four Y-rated sense capacitors and injects a noise-canceling current back into the power lines using a Y-rated inject capacitor. The GND terminal of the EVM requires a direct, low-inductance connection to the chassis ground or Earth terminal of the filter circuit.