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AC inverter & VF drives

AC drive position feedback

Products and reference designs
Block diagram

AC drive position feedback

Block diagram

Overview

Our integrated circuits and reference designs help you create accurate and more robust AC drive position feedback solutions.

Design requirements

AC drive position feedback systems often require innovative circuits to achieve:

  • High data rate.
  • Low latency.
  • Robust interface for incremental and absolute encoders.
  • Support to meet IEC61800-3 EMC immunity.

Block diagram

Find products and reference designs for your system.

AC drive position feedback

VDD VDD Connector to: digital hall, resolver, encoder Connector to:digital hall, resolver, encoder Config jumper/DIP Config jumper/DIP Indicator LEDs Indicator LEDs Resolver or SIN/COS encoder (analog) Resolver or SIN/COS encoder (analog) Absolute or incremental encoder (digital) Absolute or incremental encoder (digital) Digital processing Digital processing MCU MPU FPGA MCUMPUFPGA Encoder emulated output Encoder emulated output Temp sensor PTC/KTY Temp sensorPTC/KTY Digital input Digital input Connection to control module Connection to control module Non-isolated DC/DC power supply Non-isolated DC/DCpower supply Supervisor sequencer Supervisor sequencer DC/DC DC/DC PMIC PMIC LDO LDO Encoder power protection Encoder power protection eFuse eFuse Load switch Load switch Input user interface Input user interface Level translator buffer Level translator buffer Encoder interface Encoder interface Mux Mux Level translator Level translator RS-485/RS-422 RS-485/RS-422 Comp Comp Resolver excitation Resolver excitation DAC DAC Amp Amp SIN/COS AFE SIN/COS AFE Ref Ref Comp Comp Amp Amp ADC ADC Memory Memory Bus termination Bus termination FLASH FLASH DDR DDR Temp sense interface Temp sense interface Amp Amp Comp Comp Digital input interface Digital input interface Comp Comp Output user interface Output user interface LED driver LED driver Buffer Buffer Board-to-board protection Board-to-board protection Protection Protection Board-to-board interface Board-to-boardinterface Interface Translator Interface Translator RS-485/RS-422 RS-485/RS-422 SIN/COS AFE protection SIN/COS AFE protection Protection Protection Encoder IF protection Encoder IF protection Protection Protection Emulation IF protection Emulation IF protection Protection Protection Encoder emulation Encoder emulation Level translator Level translator RS-485/RS-422 RS-485/RS-422

Technical documentation

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Type Title Date
Application note Design for State Grid Corporation of China RS-485 Standard – THVD1500 30 Nov 2017
E-book C2000™ MCU DesignDRIVE Solutions for Industrial Motor Drives 28 Oct 2020
Application note Signal Integrity vs. Transmission Rate and Cable Length for RS-485 Transceivers 21 Sep 2017
White paper Simplify the integration of position sensors for industrial drive control system (Rev. A) 21 Nov 2019
Application note Power Multiplexing Using Load Switches and eFuses (Rev. A) 20 Jun 2017
White paper Piccolo™ C2000™ MCUs enable the next generation of low-cost, dual-axis servo dri (Rev. A) 13 Jul 2020
White paper Designing the Next Generation of Industrial Drive and Control Systems (Rev. A) 12 Sep 2016
Application brief Voltage Reference Solutions in Motor Control Drives 10 May 2022

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