Fortior has officially unveiled the FU75xx series — the industry’s first dual-core motor control MCU powered by a 32-bit RISC-V core and Fortior’s proprietary 2nd-generation Motor Engine (ME2) core. This pioneering solution delivers high-speed computing and real-time control for complex robotics and motion systems. Its advanced dual-core architecture greatly enhances operational efficiency and dynamic response for a wide range of applications, including industrial servo drives, robotic joints, smart home appliances, and new energy vehicle systems.

Built for Robotics, Powering the Future

FU75xx Series

Industry’s First Dual-core MCU with 2nd-Gen ME & 32-bit RISC-V

32-bit RISC-V Ecosystem with 2nd Gen ME Core

Dual-core Architecture for Unrivaled Performance

Built on an innovative heterogeneous architecture, FU75xx combines Fortior’s 2nd-generation Motor Engine (ME2) core with a 32-bit RISC-V core to deliver an optimal solution for high-performance motor drive applications.

• ME2 Core: A hardware-integrated core with dedicated and flexible algorithm modules that support user invocation or software replacement. It doubles the functional modules and significantly improves efficiency over both pure software solutions and the 1st-gen ME core.

• RISC-V Core: Flexibly process system communication, application logic, and UI tasks

The two cores operate in parallel to tackle diverse application scenarios. In servo applications, FOC computation time can be reduced to as low as 5µs!

Robotics & Industrial Servo Performance Redefined

FU75xx sets new benchmarks for robotic joints and industrial servo applications through its high adaptability, high integration, high performance, and high stability.

Comprehensive Interfaces

FU75xx provides BiSS-C, serial encoder, incremental encoder, and Tamagawa absolute encoder interfaces via its advanced Timer modules. It further supports versatile functions including multi-channel pulse input, encoder analog output, probe input, and compare output to enable performance upgrades for robotics and industrial servo applications.

High-integration Design

FU75xx contains high-speed operational amplifiers, comparators and multi-channel ADCs, and simplified peripheral circuitry. It supports CAN FD, CAN, LIN, SPI, I²C, and UART to implement protocols such as EtherCAT, CANopen and Modbus, with ample resources reserved for industrial servo and robotic applications.

Hardware-implemented Algorithms for Motor Control

FU75xx incorporates hardware-implemented algorithm modules to effectively increase loop bandwidth. In servo applications, the current-loop bandwidth can reach up to 3kHz! These modules can also be used to implement algorithms such as vibration suppression and torque compensation, easily overcoming the tough performance challenges in robotics and industrial servo applications.

• Hardware-implemented control loop

• Fourth-stage second-order filters

• Complex vector decoupling

• Dual-sampling dual-update (DSDU)

• PDFF controllers

• M/MT methods

• CORDIC

Comprehensive Protection for Safety and Stability

FU75xx also features multiple hardware-based protection mechanisms to ensure safe and reliable operation in industrial and robotic applications.

• OCP

• Stall protection

• Phase-loss protection

• UVLO/OVLO

• Over-speed protection

• Speed deviation protection

• Current reference fault protection

Performance Upgrade for Automotive and Traditional Markets

Enhanced Control Algorithms

• Magnetic flux observer

• Optimized PLL (SMO/AO reserved)

• Advanced low-speed startup algorithm

• Enhanced PFC (up to 6kW in dual-bridge mode)

• Updated HFI

• Upgraded field-weakening algorithm

• Optimized single-shunt current sampling reduces low-speed noise to dual-shunt levels

• Frequency sweeping during operation (EMC improvement)

Dual-motor Control for High Efficiency

FU75xx integrates six independent half-bridge PWM channels with complementary outputs to enable precise and efficient dual-motor control. It features a configurable 24/48MHz system clock for high-carrier-frequency motor drive applications. When running at 48MHz, the chip achieves a maximum carrier frequency of 115kHz in single-motor mode and 35kHz in dual-motor mode. This powerful performance makes FU75xx an ideal solution for both consumer white goods and automotive electronics markets.

Typical Applications

FU75xx series boasts high integration, rich peripherals, strong extensibility, and robust algorithm for a broad range of applications. It delivers comprehensive solutions for various motor drive scenarios.

Industry and Robotics

Single/dual-encoder robot joint modules, parallel robots, dexterous hands, ZR-axis motors, integrated servo systems, etc.

Automotive Electronics

Sunroofs, sunshades, power windows, wipers, seat ventilation systems, seat slides, rotating displays, ceiling-mounted displays, electric fans, water pumps, oil pumps, heat pumps, compressors, etc.

Consumer Electronics

Washing machines, dryers, air conditioners, refrigerators, vacuum cleaners, cooling fans, etc.

Model Selections and Applications