Mobile robot motor control

Products and reference designs

Mobile robot motor control

Block diagram

Overview

Our integrated circuits and reference designs help you create a compact, efficient and fully protected power stage module for mobile robots. Our analog and embedded processing products enable improved motor control performance and support functional safety requirements.

Design requirements

  • Small form factor gate drivers enabling high-power density power stage.
  • Precise current and voltage sense for accurate position and torque control.
  • Reliable overcurrent protection against short circuit and shoot through events.
  • Efficient non-isolated power supplies with tight regulation.

Block diagram

Find products and reference designs for your system.

Mobile robot motor control

DC Link (24 – 100Vdc) DC Link (24 – 100Vdc) Digital processing Digital processing MCU MPU MCUMPU Brake resistor Brake resistor Connection to control module Connection to control module Brake control Brake control Connector to: Angle encoder Connector to:Angle encoder PMSM motor PMSM motor Holding brake Holding brake Enable holding brake Enable holding brake Encoder AFE Encoder AFE Amp Amp Amp Amp ADC ADC DAC DAC Ref Ref Comp Comp Protection Protection DC Link current & voltage sense DC Link current & voltage sense Ref Ref Amp Amp Comp Comp 3-phase power stage 3-phase power stage FET’s FET’s Non isolated integrated drivers / Half bridge drivers Non isolated integrated drivers / Half bridge drivers Regen brake power stage Regen brake power stage Non- Isolated Gate Driver Non- Isolated Gate Driver Holding brake power stage Holding brake power stage High/low side switch High/low side switch DC/DC DC/DC Wired interface Wired interface CAN CAN RS485 RS485 Ethernet Ethernet Protection Protection Motor current & voltage sense Motor current & voltage sense Ref Ref Comp Comp Fluxgate / Hall Fluxgate / Hall Delta Sigma Delta Sigma Amp Amp Non-isolated DC/DC power supply Non-isolated DC/DC power supply DC/DC DC/DC LDO LDO PMIC PMIC Clocking Clocking BAW oscillator BAW oscillator Clock distribution Clock distribution Clock buffer Clock buffer Self-diagnostics/safety monitoring Self-diagnostics/safety monitoring Temperature sensor Temperature sensor Voltage supervisor Voltage supervisor Watchdog Watchdog RESET RESET Comparator Comparator MCU MCU

Technical documentation

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Type Title Date
E-book Ein Techniker-Leitfaden für Industrieroboter-Designs 28 Oct 2020
E-book E-book: An engineer’s guide to industrial robot designs 16 Nov 2020

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