TIDUEZ8 May   2021

 

  1.   Description
  2.   Resources
  3.   Features
  4.   Applications
  5.   5
  6. 1System Description
    1. 1.1 Insulation Monitoring
    2. 1.2 Isolation Capacitance
    3. 1.3 IEC 61557-8 Standard for Industrial Low-Voltage Distribution Systems
    4. 1.4 Key System Specifications
  7. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Highlighted Products
      1. 2.2.1 TPSI2140
      2. 2.2.2 AMC3330
      3. 2.2.3 TPS7A24
      4. 2.2.4 REF2033
      5. 2.2.5 TLV6001
    3. 2.3 Design Considerations
      1. 2.3.1 Resistive Bridge
      2. 2.3.2 Isolated Analog Signal Chain
        1. 2.3.2.1 Differential to Single-Ended Conversion
        2. 2.3.2.2 High-Voltage Measurement
        3. 2.3.2.3 Signal Chain Error Analysis
      3. 2.3.3 PCB Layout Recommendations
  8. 3Hardware, Software, Testing Requirements, and Test Results
    1. 3.1 Hardware Requirements
      1. 3.1.1 Connectors
      2. 3.1.2 Default Jumper Configuration
      3. 3.1.3 Prerequisites
    2. 3.2 Software Requirements
    3. 3.3 Test Setup
    4. 3.4 Test Results
  9. 4Design and Documentation Support
    1. 4.1 Design Files
      1. 4.1.1 Schematics
      2. 4.1.2 BOM
    2. 4.2 Documentation Support
    3. 4.3 Support Resources
    4. 4.4 Trademarks
  10. 5About the Authors

Default Jumper Configuration

Prior to working with the TIDA-010232 board, make sure that the correct jumper settings are applied. Figure 3-1 shows the default jumper configuration.

Table 3-1 Jumper Settings
HEADER JUMPER SETTING
R18 and R33 Insert the jumper to enable the differential output of the AMC3330 to be fed to the J1 connector, in case isolation voltage is sampled with a fully-differential input ADC with higher resolution than the 12-bit ADC in the LAUNCHXL-F280049C.
R50 Insert a jumper to enable the REF2033 voltage reference as common-mode voltage in the differential-to-single ended conversion for the high-voltage bus monitoring. Specifically meant for AC bus monitoring where there is a negative sign side signal. Make sure the R34 jumper is not placed simultaneously and the resistors R39, R33, R42, and R34 are sized accordingly to the differential-to-single desired gain.