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AC drive power stage module

Products and reference designs
Block diagram

AC drive power stage module

Block diagram

Overview

Our integrated circuits and reference designs help you create an efficient, fully protected power stage module for alternating current (AC) drives. Our analog and embedded processing products enable improved motor control performance and exceed isolation and EMC requirements per IEC standards.

Design requirements

AC drive power stage modules often require:

  • Non-isolated and isolated gate drivers with high common mode transient immunity (CMTI) and built-in protection.
  • Precise current and voltage sense for torque control in sensorless operation.
  • Robust overcurrent protection against short circuit and shoot through events.
  • Efficient non-isolated and isolated power supplies with tight regulation.
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Block diagram

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Isolated AC drive power stage

Non-isolated AC drive power stage

Technical documentation

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Type Title Date
Application note Digital Isolator Design Guide (Rev. G) PDF | HTML Sep 13, 2023
Analog design Journal Using isolated comparators for fault detection in electric motor drives PDF | HTML Mar 14, 2022
Application note The RS-485 Design Guide (Rev. D) PDF | HTML May 3, 2021
White paper Piccolo™ C2000™ MCUs enable the next generation of low-cost, dual-axis servo dri (Rev. A) Jul 13, 2020
Application note Performance of the Analog PWM Channel in Smart Gate Drivers Jan 16, 2020
Functional safety information Isolation in AC Motor Drives: Understanding the IEC 61800-5-1 Safety Standard (Rev. A) Sep 19, 2019
Application brief Voltage Reference Solutions in Motor Control Drives Jul 29, 2019
Technical article Interlocking gate drivers for improving the robustness of three-phase inverters PDF | HTML Mar 26, 2019
White paper Silicon carbide gate drivers -- a disruptive technology in power electronics (Rev. A) Feb 20, 2019
E-book C2000™ MCU DesignDRIVE Solutions for Industrial Motor Drives Nov 27, 2018
Analog design Journal Pushing the envelope with high-performance digital-isolation technology (Rev. A) Aug 22, 2018
Technical article Another chance to catch the 2016/2017 Power Supply Design Seminar PDF | HTML Aug 10, 2017
Analog design Journal How to use isolation to improve ESD, EFT and surge immunity in industrial system Jul 24, 2017
White paper Fully integrated signal and power isolation – applications and benefits Feb 10, 2017
Application note UCC21520, a Universal Isolated Gate Driver with Fast Dynamic Response (Rev. A) PDF | HTML Jul 5, 2016
White paper High Voltage Isolation Quality and Reliability for AMC130x Jun 21, 2016
Analog design Journal Common-mode transient immunity for isolated gate drivers Oct 30, 2015
Application note Analysis of Power Supply Topologies for IGBT Gate Drivers in Industrial Drives Jul 6, 2015
Application note Is Your IGBT Gate-Driver Power Supply Optimized Mar 12, 2015
White paper High-voltage reinforced isolation: Definitions and test methodologies Oct 16, 2014
Application note Sensored Field Oriented Control of 3-Phase Induction Motors Jul 1, 2013
Application note Scalar (V/f) Control of 3-Phase Induction Motors Jul 1, 2013
Product overview Breakthrough InstaSPIN™-FOC motor control technology is here Oct 17, 2012

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