With the rapid progress of technology, the automotive industry is undergoing an unprecedented revolution.
In this transformation, brushless DC motors are gradually replacing brushed DC motors
to become the power core of small actuators due to their significant advantages such as high efficiency,
low noise, and long lifespan. To meet this market demand,
Fudan Microelectronics has launched a new automotive-grade low-voltage brushless DC motor drive
control development board based on automotive-grade MCU chips,
aiming to provide automotive engineers and innovation enthusiasts with a universal,
efficient, and convenient BLDC motor solution verification platform to quickly build system prototypes
and conduct solution verification and evaluation in the early stage of project development.
In this transformation, brushless DC motors are gradually replacing brushed DC motors
to become the power core of small actuators due to their significant advantages such as high efficiency,
low noise, and long lifespan. To meet this market demand,
Fudan Microelectronics has launched a new automotive-grade low-voltage brushless DC motor drive
control development board based on automotive-grade MCU chips,
aiming to provide automotive engineers and innovation enthusiasts with a universal,
efficient, and convenient BLDC motor solution verification platform to quickly build system prototypes
and conduct solution verification and evaluation in the early stage of project development.
Fudan Micro is committed to establishing an automotive motor control ecosystem,
which not only has a variety of automotive-grade MCUs suitable for BLDC motor control,
hardware development and evaluation kits,
and an online motor debugging platform,
but also can provide customers with a free and easy-to-use motor control software algorithm library.
Fudan Micro'smotor control algorithm library covers sensing square wave, sensing FOC,
sensorless square wave, and sensorless FOC schemes, which can assist engineers
in quickly implementing efficient BLDC motor control schemes.
01 Hardware Design
Fudan Micro's automotive motor development kit is suitable for sensor-based and sensorless applications
based on brushless DC motors/permanent magnet synchronous motors.
This kit aims to achieve rapid prototype design and motor control application evaluation
without waiting for the final hardware design, thereby shortening the project development cycle.
This kit includes a core board based on the 32-bit Fudan Micro FM33 series automotive-grade MCU
and a 3-phase low-voltage power module driver board.
The core board and the driver board adopt a pluggable design to facilitate
the verification of the scheme based on different models of MCUs.
hardware development and evaluation kits,
and an online motor debugging platform,
but also can provide customers with a free and easy-to-use motor control software algorithm library.
Fudan Micro'smotor control algorithm library covers sensing square wave, sensing FOC,
sensorless square wave, and sensorless FOC schemes, which can assist engineers
in quickly implementing efficient BLDC motor control schemes.
01 Hardware Design
Fudan Micro's automotive motor development kit is suitable for sensor-based and sensorless applications
based on brushless DC motors/permanent magnet synchronous motors.
This kit aims to achieve rapid prototype design and motor control application evaluation
without waiting for the final hardware design, thereby shortening the project development cycle.
This kit includes a core board based on the 32-bit Fudan Micro FM33 series automotive-grade MCU
and a 3-phase low-voltage power module driver board.
The core board and the driver board adopt a pluggable design to facilitate
the verification of the scheme based on different models of MCUs.
Hardware Principle of the Motor Control Development Kit
Electrical Characteristics of the Development Board:
1 Input Voltage: 12 - 40V
2 Current: Max 40A
3 Communication Mode: LIN/CAN/UART
4 Hall Sensor, Encoder Interface, Supports Sensing Square Wave and Sensing FOC Control
5 Back EMF Sampling Circuit, Supports Single/Double/Three-Resistor Sampling for
Sensorless Square Wave and Sensorless FOC Control
6 Undervoltage, Overcurrent, Overvoltage, Stall, and Other Fault Detection and Protection Circuits
7 Key Components of the Development and Evaluation Kit are All Domestic Chips:
Operational Amplifier DIA2602SO8, LDO DIA7865, DCDC STC2430, MOS NCEAP6090AGU
02 Software Design
Fudan Micro provides a complete set of software algorithms for users, including the following:
1. Control Algorithms: Sensing Square Wave, Sensing FOC/Sensorless FOC, and other algorithms.
2. Protection Algorithms: Overcurrent, Phase Loss, Overvoltage, Undervoltage, Stall, Power, and other protection algorithms.
3.Basic Algorithms: Adaptive Filtering, Seven-Segment/Five-Segment SVPWM, Coordinate Transformation, and other algorithms.
Taking the non-inductive FOC algorithm as an example, the functional algorithms
that can be evaluated by the development kit are shown in the following figure.
03 MCU Introduction
Fudan Micro's automotive series MCU chips were officially mass-produced in Q3 2021 and passed the AEC-Q100 assessment.
Currently, the FM33LG0xxA/LE0xxA/FT0xxA/FG0xxA and other series of automotive MCUs have been mass-produced and released,
and they can all be evaluated/developed by replacing the core board of the development kit.
04 Automotive Motor Applications
