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Single & multiaxis servo drives

Servo drive power stage module

Products and reference designs
Block diagram

Servo drive power stage module

Block diagram

Overview

Our integrated circuits and reference designs help you create a compact, efficient and fully-protected servo drive power stage module. Our analog and embedded processing products enable improving motor control performance and exceed isolation and EMC requirements per IEC standards.

Design requirements

Servo 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 accurate position and torque control.
  • Robust overcurrent protection against short circuit and shoot through events.
  • Efficient non-isolated and isolated power supplies with tight regulation.
Explore applications similar in function and design

Block diagram

Find products and reference designs for your system.

DC-fed servo power stage

IGBT-based servo power stage

IPM-based servo power stage

Multi-axis servo power stage

IGBT-based servo power stage

24V & other rails 24V & other rails DC LINK DC LINK Safe torque off input Safe torque off input Brake resistor Brake resistor PWM & FLT PWM & FLT Multiple rails Multiple rails Connection to control module Connection to control module 3 phase AC mains (200-690V) 3 phase AC mains(200-690V) Gate driver supply Gate driver supply Temp sense Temp sense Gate driver supply Gate driver supply Brake control Brake control Brake control Brake control DC LINK DC LINK AC motor AC motor 24V Aux 24V Aux Holding brake Holding brake Grid sense Grid sense Grid sense Grid sense Diagnostics / monitoring Diagnostics / monitoring High side smart switch High side smart switch Isolation Isolation DC/DC DC/DC Grid voltage sense Grid voltage sense Amp Amp ISO Amp ISO Amp MCU MCU Isolation Isolation ADC ADC Ref Ref LDO LDO Regen brake power stage Regen brake power stage Isolated gate driver Isolated gate driver 3-phase power stage 3-phase power stage Isolated gate drivers Isolated gate drivers Logic gates Logic gates IGBT IGBT Non-isolated AC/DC power supply Non-isolated AC/DC power supply Rectifier Rectifier Isolated DC/DC main Isolated DC/DC main PWM controller PWM controller REF REF FET FET DC link current & voltage sense DC link current & voltage sense Ref Ref Amp Amp Comp Comp Isolation Isolation Iso Amp Iso Amp Iso Delta Sigma Iso Delta Sigma Temp monitoring Temp monitoring Amp Amp Iso Amp Iso Amp Comp Comp Input power protection Input power protection EFuse EFuse Oring controller Oring controller FET FET Isolated DC/DC hot side Isolated DC/DC hot side PWM controller PWM controller FET FET LDO LDO Non-isolated DC/DC power supply Non-isolated DC/DC power supply DC/DC DC/DC Supervisor sequencer Supervisor sequencer PMIC PMIC LDO LDO Clocking Clocking CLK distribution CLK distribution Signal conditioning Signal conditioning Ref Ref Amp Amp Comp Comp Logic gates Logic gates ADC ADC Holding brake power stage Holding brake power stage High/low side switch High/low side switch Isolation Isolation DC/DC DC/DC Dynamic brake power stage Dynamic brake power stage Relay driver Relay driver Non isolated gate driver Non isolated gate driver Thyristor Thyristor Dynamic brake relay Dynamic brake relay FAN power stage FAN power stage Isolation Isolation Switch / LDO Switch / LDO Wired interface Wired interface CMOS CMOS CAN CAN LVDS LVDS RS485 RS485 Isolation Isolation Ethernet Ethernet Digital processing Digital processing MCU ASIC FPGA MCUASICFPGA Motor current & voltage sense Motor current & voltage sense Fluxgate / hall Fluxgate / hall Iso delta sigma Iso delta sigma Iso Amp Iso Amp LDO LDO Fan Fan

Technical documentation

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Type Title Date
Technical article Anything but discrete: How to simplify 48-V to 60-V DC-fed three-phase inverter de PDF | HTML 31 Jul 2023
Technical article 3 tips when designing a power stage for servo and AC drives PDF | HTML 30 Jun 2023
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
E-book Ein Techniker-Leitfaden für Industrieroboter-Designs 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
White paper Design considerations of GaN devices for improving power converter efficiency 20 Nov 2017
Technical article Getting the most out of your power stage at the full temperature range – part 2 PDF | HTML 18 Jul 2023
Application note Performance of the Analog PWM Channel in Smart Gate Drivers 17 Jan 2020
E-book E-book: An engineer’s guide to industrial robot designs 16 Nov 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
Technical article Interlocking gate drivers for improving the robustness of three-phase inverters PDF | HTML 11 Sep 2023
Application note High Voltage Half Bridge Design Guide for LMG3410 Smart GaN FET (Rev. A) 11 May 2022
Application note The RS-485 Design Guide (Rev. D) PDF | HTML 10 May 2022
Application brief Voltage Reference Solutions in Motor Control Drives 10 May 2022
White paper Advancing Power Supply Solutions Through the Promise of GaN 10 Feb 2017
Technical article Getting the most out of your power stage at the full temperature range – part 1 PDF | HTML 08 Aug 2023
Analog Design Journal 전기 모터 드라이브의 오류 감지를 위해 절연 콤퍼레이터 사용 PDF | HTML 07 Aug 2024
Analog Design Journal Verwendung isolierter Komparatoren zur Fehlererkennung in Elektromotorantrieben PDF | HTML 07 Aug 2024
Technical article How to keep your motor running safely PDF | HTML 07 Aug 2023
Analog Design Journal Using isolated comparators for fault detection in electric motor drives PDF | HTML 06 Sep 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 Optimizing GaN performance with an integrated driver 05 Apr 2016
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 Sensorless Field Oriented Ctrl of 3-Phase Perm. Magnet Synch. Motors-HVDMC Kit 01 Jul 2013

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