Novel, High Efficiency Full-Bridge Rectifier Reference Design
TIDA-00858
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Key Document

Description

TIDA-00858 implements a high efficiency novel approach to Full Bridge Rectifier. This TI Design replaces diodes with four N-Channel MOSFETs, combined with LM74670-Q1 Smart Diode Controllers in a Full Bridge Rectifier configuration.  The LM74670-Q1 solution is highly effective zero IQ replacement of lossy diodes. This design can produce a rectified DC voltage without diode forward voltage drop for AC input voltage up to 45V. This LM74670-Q1 solution based full bridge rectifier can handle AC input of 300Hz frequency and up to 100A output current with less thermal management compared to schottky diode rectifier.

Features
  • Supports AC input voltage up to 45V
  • Fast Response to Dynamic Current Reversal: <5µsec
  • More efficienty solution for high current rectifiers
  • Supports AC input frequency up to 300Hz
  • Zero IQ and smaller reverse leakage current compared to diodes rectifier

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Schematic/Block Diagram

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Test Data

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Design Files

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TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD18532KCS  60V, N ch NexFET MOSFETâ„¢, single TO-220, 4.2mOhm  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
LM74670-Q1  0.48-V to 42-V, zero IQ automotive ideal diode rectifier controller with 70uA gate drive  Power switches  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD18532KCS Download
LM74670-Q1 Download

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Technical documentation

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User guides (1)
Title Type Size (KB) Date
PDF 949 30 Nov 2015
Design files (6)
Title Type Size (KB) Date
ZIP 168 30 Nov 2015
ZIP 1450 30 Nov 2015
PDF 250 30 Nov 2015
PDF 58 30 Nov 2015
PDF 34 30 Nov 2015
PDF 134 30 Nov 2015

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