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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 UCC21520, a Universal Isolated Gate Driver with Fast Dynamic Response (Rev. A) PDF | HTML 29 Jun 2018
E-book C2000™ MCU DesignDRIVE Solutions for Industrial Motor Drives 28 Oct 2020
Functional safety information Isolation in AC Motor Drives: Understanding the IEC 61800-5-1 Safety Standard (Rev. A) 28 Jul 2022
White paper Silicon carbide gate drivers -- a disruptive technology in power electronics (Rev. A) 28 Feb 2019
White paper High Voltage Isolation Quality and Reliability for AMC130x 27 Jun 2016
Analog Design Journal Pushing the envelope with high-performance digital-isolation technology (Rev. A) 22 Aug 2018
Product overview Breakthrough InstaSPIN™-FOC motor control technology is here 21 Feb 2013
Application note Performance of the Analog PWM Channel in Smart Gate Drivers 17 Jan 2020
Application note Digital Isolator Design Guide (Rev. G) PDF | HTML 13 Sep 2023
White paper Piccolo™ C2000™ MCUs enable the next generation of low-cost, dual-axis servo dri (Rev. A) 13 Jul 2020
Application note Is Your IGBT Gate-Driver Power Supply Optimized 12 Mar 2015
White paper High-voltage reinforced isolation: Definitions and test methodologies 12 Aug 2019
Application brief Voltage Reference Solutions in Motor Control Drives 10 May 2022
Application note The RS-485 Design Guide (Rev. D) PDF | HTML 10 May 2022
Analog Design Journal Using isolated comparators for fault detection in electric motor drives PDF | HTML 06 Sep 2022
Application note Analysis of Power Supply Topologies for IGBT Gate Drivers in Industrial Drives 06 Jul 2015
White paper Fully integrated signal and power isolation – applications and benefits 04 Apr 2017
Analog Design Journal Pushing the envelope with high-performance digital-isolation technology 02 Nov 2015
Analog Design Journal Common-mode transient immunity for isolated gate drivers 02 Nov 2015
Analog Design Journal How to use isolation to improve ESD, EFT and surge immunity in industrial system 02 Aug 2017
Application note Sensored Field Oriented Control of 3-Phase Induction Motors 01 Jul 2013
Application note Scalar (V/f) Control of 3-Phase Induction Motors 01 Jul 2013

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