Telecom rectifiers

Products and reference designs

Telecom rectifiers

Block diagram

Overview

Our integrated circuits and reference designs help you design highly reliable, cost-effective merchant telecom rectifiers with ultra-high energy efficiency, high power density and redundancy.

Design requirements

Innovative merchant telecom rectifiers often require:

  • High efficiency with soft-switching techniques, bridgeless PFC topologies or GaN devices.
  • Small size and high-power density.
  • High system reliability with less thermal stress.
  • Digital solution with CAN, RS-485 or Bluetooth®/NB IoT for scalability and connectivity.

Block diagram

Find products and reference designs for your system.

Analog-controlled telecom rectifier

48VDC~58VDC 48VDC~58VDC AC mains AC mains HVDC HVDC Primary Primary Secondary Secondary HVDC HVDC CLK CLK DAT DAT Power metering Power metering Metering MCU Metering MCU Isolator Isolator AMP AMP PFC stage PFC stage Gate driver Gate driver HV GaN /HV FET HV GaN /HV FET PFC controller PFC controller Temp sensor Tempsensor AMP AMP Isolated DC/DC stage Isolated DC/DC stage DCDC controller DCDC controller Gate driver Gate driver HV GaN /HV FET HV GaN/HV FET SR driver SR driver MV-FET MV-FET OPTO OPTO VREF VREF COMP COMP Temp sensor Tempsensor AMP AMP Output protection Output protection Oring controller Oring controller COMP COMP MV-MOSFET MV-MOSFET Housekeeping Housekeeping Housekeeping MCU Housekeeping MCU I2C I2C CAN CAN NB-IoT NB-IoT 485 485 ESD ESD VREF VREF Auxiliary power supply Auxiliary power supply Flyback controller Flyback controller VREF VREF LDOs LDOs DCDC DCDC OPTO OPTO DCDC DCDC LDOs LDOs HV-FETs HV-FETs AC/DC EMI filter AC/DC EMI filter Rectifier Bridge Rectifier Bridge EMI Filter EMI Filter

Technical documentation

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Type Title Date
Technical article Do you have the correct PFC to meet the new standard of harmonic current emissions 30 Jun 2023
Analog Design Journal Digital current balancing for an interleaved boost PFC 30 Apr 2013
Application note UCC21520, a Universal Isolated Gate Driver with Fast Dynamic Response (Rev. A) PDF | HTML 29 Jun 2018
White paper High Voltage Isolation Quality and Reliability for AMC130x 27 Jun 2016
Technical article Power Tips: Improve power supply reliability with high voltage GaN devices PDF | HTML 27 Jul 2023
Application note PFC THD Reduction and Efficiency Improvement by ZVS or Valley Switching 23 Oct 2014
White paper Design considerations of GaN devices for improving power converter efficiency 20 Nov 2017
Application brief Overcurrent Protection in High-Density GaN Power Designs 19 Oct 2018
Test report 3.6kW Single-phase totem-pole bridgeless PFC reference design with e-meter functionality (Rev. B) PDF | HTML 18 Jul 2024
Technical article How to use Hall-effect current sensors in telecom rectifiers and server PSUs PDF | HTML 14 Jul 2023
EVM User's guide Using the LMG341xEVM-018 Half-bridge and LMG34XX-BB--EVM breakout board EVM (Rev. A) 11 May 2022
Application note Digitally Controlled Bridgeless Power Factor Correction (BL PFC) using C2000 MCU (Rev. A) PDF | HTML 11 May 2022
Application note Using a Single-Output Gate-Driver for High-Side or Low-Side Drive (Rev. B) PDF | HTML 08 Sep 2023
Technical article GaN reliability standards reach milestone PDF | HTML 08 Jun 2023
More literature Design and Optimization of a High-Performance LLC Converter 04 Nov 2013
Application brief External Gate Resistor Selection Guide (Rev. A) 01 Apr 2020

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