Electronics

Motor Drives Reference Designs For Different Applications


3-Phase Brushless DC Motor Drive

Type: 3-phase BLDC motor

Power: 90-264V AC

Wattage: 10W

OEM Brand: ROHM

Key Attraction

Reference design for a low-powered BLDC motor drive that can take input from a regular AC home socket (90 to 264 volts) and is capable of running a small 10W motor at 12V DC.

Highlights

The REFMOT201 is a reference design by ROHM for a 3-phase brushless DC motor drive. The design enables direct input of AC power to a BLDC motor unit by installing an AC-DC converter circuit in the drive circuit for a 3-phase BLDC motor. The design has a 3-phase motor driver plus AC-DC converter (12V output) integrated into a single board. The main advantage of this reference design is its higher efficiency, higher power density, and better torque-to-weight ratio. These features enable the drive to have a smaller footprint and lower volume. The reference design offers precise control over motor speed and torque, making it ideal for applications where accuracy is critical. The low-powered reference design offers higher reliability and low noise and vibration, making it suitable for use in low-powered consumer electronics, such as toys and small fans.

Application

The reference design is suitable for low-powered consumer electronics and toys.

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12V BLDC Motor Drive for Automotive Applications

Type: BLDC

Power: 12V

Wattage: 200W

OEM Brand: TI

Key Attraction

Reference design for a low-powered BLDC motor driver that features an onboard temperature, voltage, and current sense, which allows adding fault-protection and diagnostics features easily to the motor drive.

Highlights

TIDA-00901 is a reference design from the Texas Instruments for a 200W BLDC motor drive. It simplifies the design complexity as it doesn’t require any position sensor, such as a quadrature encoder or a hall effect sensor. This design includes an analogue circuit that works with a microcontroller, a C2000 LaunchPad to control the speed of a 3-phase BLDC motor. The design is suitable for harsh automotive environments, such as operation at a wide range of temperatures from –50°C to +150°C. The motor drive can work with a 12V battery and has a wide range of operating voltage from 4.4V to 45V. It is compatible with the existing MotorWare software, thus further simplifying the development process and providing a 3.3V supply for LaunchPad operation.

Applications

The reference design is suitable for use in e-bikes, toy cars for kids, etc.

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Low Powered E-Scooter Motor Drive

Type: BLDC

Power: 18V to 24V

Wattage: 350W

OEM Brand: Microchip

Key Attraction

Reference design for e-bike motor controller that can take input from 18V to 24V and deliver a maximum power of 350W. The design is capable of driving both a BLDC motor as well as a PMSM motor of up to 350W power.

Highlights

The dsPIC33CK64MP105 DSC motor controller from Microchip is a high-efficiency design suitable for e-mobility solutions. It is suitable for low-powered e-scooter and e-bikes. The reference design can take input from 18V to 24V and deliver a maximum power of 350W. It is capable of driving both a BLDC motor as well as a PMSM motor of up to 350W power. The brain of this design is digital signal controller (DSC), dsPIC33CK. The single-core dsPIC33CK DSCs accelerate digital signal processor (DSP) performance for time-critical applications. This design also employs six MOSFETs with low RDS(on), which enhances safety as the MOSFETs can handle high phase currents without excessive conduction losses. The design offers high efficiency, compact dimensions, and low cost while providing high performance.

Applications

The reference design is suitable for use in e-bikes, electric lawnmowers, etc.

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3-Phase PMSM Drive

Type: PSMS

Power: 1.5 KW

Wattage: 230V AC

OEM Brand: Renesas

Key Attraction

This reference design for a 3-phase PMSM drive with a 32-bit microcontroller includes a low-voltage MOSFETs power stage and a communication stage. The design is suitable for motor drives for drones, compressors, air-conditioners, fans, air extractors, pumps, and industrial drives, etc.

Highlights

The YROTATE-IT-RX111 is a motor drive for a 3-phase permanent magnet synchronous motor (PMSM) or AC brushless motor that employs an advanced sensorless field oriented control algorithm. The design is compatible with other existing motor control reference platforms with external power stages delivering up to 1.5kW at 230V AC. The reference design features a microcontroller (MCU) from Renesas 32-bit RX MCU family. The main advantage of the design is that it is simple and economical. The reference design allows the user to monitor and tune various parameters using the graphical user interface provided by the company. The design is highly customisable and allows the user to select the best switching frequency and control frequency to adapt the control dynamics suitable to the application requirements. This enables any designer to make the right compromise between system dynamics, CPU load, and overall efficiency.

Applications

The reference design can be used to make motor drives for drones, compressors, air-conditioners, fans, air extractors, pumps, and industrial drives, etc.

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22kW Industrial Motor Drive

Type: 3-phase induction motor

Power: 400V AC

Wattage: 22KW

OEM Brand: Infineon

Key Attraction

This reference design is for a 22kW industrial motor drive for 3-phase 400V AC grids. The motor driver can take input from 380 to 480V AC. The reference design is highly customisable and can be used for both low-powered and high-powered applications.

Highlights

The REF-22K-GPD-INV-EASY3B is a reference design of an industrial-grade motor drive from Infineon. The motor drive is suitable for 3-phase 400V AC grids and has a nominal power of 22kW. It includes a power module, current sensor, gate driver IC, and a 1.7kV SiC-MOSFET. The reference design features two microcontrollers and can be divided into five separate boards: power board, EMI filter, high-voltage logic board, low-voltage interface board, and DC-link board. This makes the reference design highly customisable with respect to specification and size. Furthermore, it allows for better isolation between different sub-systems, making the reference design safer and more reliable. The design also features software that enables full control and communication via touch screen and PC-GUI. The reference design can take 3φ input of 380 to 480V and provide a wide range of output from 0 to 456V with a rated current of up to 45A. The reference design can be used for both low-powered motor control as well as high-power applications, such as conveyor belts and compressors.

Applications

The reference design can be used for both low- powered motors like refrigerator compressors and high-powered motors for conveyor belts, and running large compressors for warehouse chillers.

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