Motor Driver Boards, Modules

Part Number	Description / PDF	Quantity
VFD7A5MS21AFSHA Delta Electronics	VFD-MS300, 2HP 1.5KW 230V 7.5A H	0
VFD015E23A Delta Electronics	VFD-E, 2HP 230V, MICRO VECTOR DR	1
VFD11AMS21ANSAA Delta Electronics	VFD-MS300, 3HP 2.2KW 230V 11A HD	1
VFD38AMS43ANSAA Delta Electronics	VFD-MS300, 25HP 18.5KW 480V 38A	1
VFD38AMS43AFSAA Delta Electronics	VFD-MS300, 25HP 18.5KW 480V 38A	1
VFD4A2MS43ANSAA Delta Electronics	VFD-MS300, 2HP 1.5KW 480V 4.2A H	7
VFD150C43A Delta Electronics	VFD-C2000, 20HP 460V, FOC & TRQ	2
VFD1A6MS21AFSAA Delta Electronics	VFD-MS300, 1/4HP 0.2KW 230V 1.6A	2
VFD220C63B-21 Delta Electronics	VFD-C2000, 30HP 690V, FOC & TRQ	0
VFD007E43A Delta Electronics	VFD-E, 1HP 460V, MICRO VECTOR DR	5
VFD370C43S Delta Electronics	VFD-C2000, 50HP 460V, FOC & TRQ	0
ASD-B2-3023-B Delta Electronics	B2 SERVO DRIVE, 3KW, 230V 3PH IN	1
VFD185C43A Delta Electronics	VFD-C2000, 25HP 460V, FOC & TRQ	1
VFD9A0MS43ANSHA Delta Electronics	VFD-MS300, 5HP 3.7KW 480V 9.0A H	0
VFD1850C43A Delta Electronics	VFD-C2000, 250HP 460V, FOC & TRQ	0
VFD900C23A Delta Electronics	VFD-C2000, 120HP 230V, FOC & TRQ	0
VFD004EL21A Delta Electronics	VFD-EL, 1/2HP 230V, MICRO DRIVE	1
VFD4000C63B-21 Delta Electronics	VFD-C2000, 535HP 690V, FOC & TRQ	0
VFD550C63B-00 Delta Electronics	VFD-C2000, 75HP 690V, FOC & TRQ	0
VFD5A5MS43AFSHA Delta Electronics	VFD-MS300, 3HP 2.2KW 480V 5.5A H	0

Motor Driver Boards, Modules

1. Overview

Motor driver boards/modules are electronic devices that act as intermediaries between control systems (e.g., microcontrollers) and motors. They convert low-power control signals into high-power electrical currents to drive motors efficiently. These components enable precise regulation of motor speed, direction, torque, and position. Their importance spans across automation, robotics, industrial machinery, and consumer electronics, where accurate motion control is critical for system performance.

2. Main Types & Functional Classification

Type	Functional Features	Application Examples
H-Bridge Drivers	Bi-directional control using transistor bridges, basic speed regulation	DC motor direction control in robotic arms
Stepper Motor Drivers	Microstepping, position accuracy, torque control	3D printers, CNC machines
Servo Controllers	Feedback loop integration, precise angular positioning	RC vehicles, industrial automation
Brushless DC (BLDC) Drivers	Electronic commutation, high efficiency, variable speed	Drones, HVAC systems
Integrated Smart Modules	Embedded control logic, thermal protection, communication interfaces	Autonomous vehicles, medical pumps

3. Structure & Components

A typical motor driver contains:

Power Transistors: MOSFETs or IGBTs for switching high currents
Control IC: Processes PWM signals and manages commutation
Heat Sink: Aluminum-based PCB or external fins for thermal management
Protection Circuits: Overcurrent, overtemperature, and voltage spike suppression
Connectors: Screw terminals for motor wiring and control interfaces (UART/SPI)

4. Key Technical Specifications

Parameter	Importance
Max Continuous Current	Determines motor power capacity (e.g., 5A for NEMA 23 stepper)
Voltage Range	Must match motor supply (e.g., 8-45V for industrial BLDC drivers)
Efficiency (Typical >90%)	Impacts thermal performance and energy consumption
Control Resolution	Microstepping levels (e.g., 1/16-step for precision engravers)
Protection Features	Overcurrent/voltage, thermal shutdown (critical for reliability)
Communication Protocols	CAN, Modbus support for industrial IoT integration

5. Application Fields

Industrial: CNC machining centers, conveyor belt systems
Consumer: Smart home appliances, gaming consoles
Medical: MRI scanner positioning, insulin pumps
Automotive: Electric vehicle powertrains, EPS systems
Robotics: Collaborative robot joint control

6. Leading Manufacturers & Products

Manufacturer	Representative Product	Key Specifications
TI (Texas Instruments)	DRV8825	2.5A RMS, 1/32 microstepping, thermal shutdown
STMicroelectronics	L6470	3.0A peak, SPI interface, stall detection
ON Semiconductor	MC33926	3.0A continuous, bidirectional control
Maxon Motor	EPOS4 Compact	50A peak, EtherCAT interface, encoder feedback

7. Selection Guidelines

Match driver current/voltage ratings to motor specifications
Select control mode (PWM, analog, digital) based on system requirements
Consider environmental factors (temperature, vibration)
Verify required protection features (IP rating for harsh environments)
Evaluate integration needs (footprint, communication protocols)
Balance cost vs. performance for volume production

8. Industry Trends

Emerging trends include:

Integration: System-on-Chip (SoC) drivers combining control and power stages
Smart Diagnostics: Built-in current sensing and predictive maintenance algorithms
Wide Bandgap Semiconductors: SiC/GaN transistors enabling higher switching frequencies
Wireless Control: Bluetooth/Wi-Fi-enabled drivers for IoT applications
Miniaturization: Chip-scale packaging for space-constrained applications