SLVUCQ2A july   2023  – july 2023 TPSF12C1 , TPSF12C1-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
    5.     General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
  8. 2Hardware
    1. 2.1 EVM Description
    2. 2.2 Setup
    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 Thermal Performance
    3. 3.3 Surge Immunity
    4. 3.4 SENSE and INJ Voltages
    5. 3.5 Insertion Loss
    6. 3.6 Passive vs. Active Solution Comparison
  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

1.4 Device Information

CM filters for both commercial (Class A) and residential (Class B) environments typically have limited Y-capacitance due to touch-current safety requirements and, thus require large-sized CM chokes to achieve the requisite attenuation; ultimately resulting in filter designs with bulky, heavy and expensive passive components. The deployment of active filter circuits enable more compact filters for next-generation power conversion systems.

The EVM, a practical filter circuit realization for a single-phase power system, showcases the EMI performance improvement or size reduction achievable with the TPSF12C1, a single-phase power-supply filter IC.

The circuit advantages summarize as:

  1. Simple filter structure – with wide operating frequency range and high stability margins
  2. Reduced CM choke size – for lower volume, weight and cost. This also enables much less copper loss and better high-frequency performance due to lower choke self-parasitics and higher self-resonant frequency
  3. No additional magnetic components – only uses Y-rated sense and inject capacitors with minimal impact to peak touch current (measured according to IEC 60990)
  4. Enhanced safety – using a low-voltage AEF IC referenced to chassis ground
  5. Standalone AEF IC implementation – enables maximum flexibility in terms of placement near the filter components
  6. Surge immunity – robust to line voltage surges to meet IEC 61000-4-5 (with appropriate voltage clamping internal or external to the IC).
Note: The damping and compensation component values included with this EVM can require modification if the passive filter components (the CM chokes in particular) are changed. Refer to the TPSF12C1 Standalone Active EMI Filter for Common-mode Noise Mitigation in Single-Phase AC Automotive Power Systems data sheet and TPSF12C1 quickstart calculator for additional guidance pertaining to AEF circuit operation and loop gain, passive component selection and expected EMI performance.
GUID-E7788148-CC76-4889-9110-DCE450B1CD82-low.gif
CAUTION: Hot surface. Contact can cause burns. Do not touch.
GUID-7CDBB8AD-0357-43FF-82A1-14CF96AE0E4B-low.gif
CAUTION: High Voltage. Risk of electric shock.