• Menu
  • Product
  • Email
  • PDF
  • Order now

  • 3-Phase Non-Isolated High-Side Buck Controller Reference Design

    • TIDT373 December   2023

       

  • CONTENTS
  • SEARCH
  • 3-Phase Non-Isolated High-Side Buck Controller Reference Design
  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Dimensions
  6. 2Testing and Results
    1. 2.1 Efficiency
    2. 2.2 Standby Power
    3. 2.3 Load Regulation
    4. 2.4 Line Regulation
    5. 2.5 Thermal Images
      1. 2.5.1 43 VAC Input Voltage
      2. 2.5.2 274 VAC Input Voltage
    6. 2.6 Bode Plots
  7. 3Waveforms
    1. 3.1 Switch Node Voltage
      1. 3.1.1 40 VDC Input Voltage
        1. 3.1.1.1 No Load
        2. 3.1.1.2 100-mA Load Current
        3. 3.1.1.3 1-A Load Current
      2. 3.1.2 630-VDC Input Voltage
        1. 3.1.2.1 No Load
        2. 3.1.2.2 500-mA Load Current
        3. 3.1.2.3 1-A Load Current
    2. 3.2 Output Voltage Ripple
      1. 3.2.1 40-VDC Input Voltage
      2. 3.2.2 325-VDC Input Voltage
      3. 3.2.3 630 VDC Input Voltage
    3. 3.3 Input Voltage Ripple
    4. 3.4 Load Transients
      1. 3.4.1 40-VDC Input Voltage
      2. 3.4.2 325-VDC Input Voltage
      3. 3.4.3 630-VDC Input Voltage
    5. 3.5 Start-Up Sequence
      1. 3.5.1 With Load
        1. 3.5.1.1 43-VAC Input Voltage
        2. 3.5.1.2 630-VDC Input Voltage
      2. 3.5.2 Without Load
        1. 3.5.2.1 40-VDC Input Voltage
        2. 3.5.2.2 630-VDC Input Voltage
  8. IMPORTANT NOTICE
search No matches found.
  • Full reading width
    • Full reading width
    • Comfortable reading width
    • Expanded reading width
  • Card for each section
  • Card with all content

 

Test Report

3-Phase Non-Isolated High-Side Buck Controller Reference Design

Description

This reference design is an 3-phase input offline high-side buck controller power supply that provides an 12-V output at a maximum of 1 A. The input accepts a voltage range of 43 VAC to 255 VAC per phase. The reference design uses the UCC28C55 low-power current-mode PWM controller.

Features

  • Current-mode PWM controller
  • Very wide input voltage range: 40 VDC–623 VDC
  • Non-isolated high-side buck controller topology eliminates the need for an optocoupler

Applications

  • Electricity meter
GUID-20231211-SS0I-HW6T-PLT5-TCMPP1F8ZPNL-low.png Top of Board
GUID-20231211-SS0I-X5BD-JQDR-LBTJKCJMJS5B-low.png Bottom of Board
GUID-20231218-SS0I-6BTZ-5594-CTKCH27TZFKH-low.svg Schematic

 
Texas Instruments

© Copyright 1995-2025 Texas Instruments Incorporated. All rights reserved.
Submit documentation feedback | IMPORTANT NOTICE | Trademarks | Privacy policy | Cookie policy | Terms of use | Terms of sale