Brushless Motor Controller DC 12-36V 500W PWM Driver Board

This is a high-performance PWM (Pulse Width Modulation) driver board specifically engineered to control brushless DC motors across a wide voltage range of 12V to 36V with maximum power handling of 500W. Professional engineers, roboticists, and industrial automation specialists use this controller for precise speed regulation and directional control in applications requiring efficient motor management. It solves the critical problem of smooth motor acceleration, deceleration, and variable speed control while protecting the motor from overcurrent and voltage fluctuations.

Product Overview

The Brushless Motor Controller operates on the principle of electronic commutation, replacing mechanical brushes with solid-state switching to deliver power to motor windings at precisely timed intervals. The PWM technique modulates the duty cycle of the switching frequency to achieve smooth speed control from 0-100% without energy loss through resistive braking. This board features a microcontroller-based design with integrated MOSFETs capable of handling sustained 500W loads, making it ideal for e-bikes, electric scooters, drone propulsion systems, and industrial machinery requiring variable speed operation.

What distinguishes this model is its wide input voltage acceptance from 12V to 36V, allowing compatibility with various battery configurations including 3S to 10S lithium-ion packs, lead-acid batteries, and industrial power supplies. The controller includes built-in protection circuits for reverse polarity, over-temperature shutdown, and phase detection algorithms that automatically identify motor winding configuration, eliminating manual setup complexity. The compact PCB design with professional-grade components ensures reliability in demanding environments while maintaining thermal efficiency through optimized heat dissipation pathways.

Key Specifications

Specification	Details
Product Type	Brushless DC Motor PWM Controller
Input Voltage Range	12V to 36V DC
Maximum Power Output	500W continuous
Control Method	PWM (Pulse Width Modulation)
Switching Frequency	16 kHz typical
Motor Type Compatibility	3-phase brushless motors
Hall Sensor Input	Yes, 3-wire Hall effect sensors
Reverse Polarity Protection	Built-in MOSFET protection
Over-temperature Protection	Automatic shutdown at 85°C
Current Sensing	Integrated shunt resistor
Brand	Original/Authentic
Origin	Original/Authentic
Warranty	7 days on manufacturing defects
Shipping	1-5 days from Bengaluru
Delivery	7-8 days across India
Support	24/7 via Email and WhatsApp

Key Features

• Wide Voltage Range: Operates seamlessly from 12V to 36V, compatible with multiple battery configurations and power sources without requiring separate controllers
• High Power Density: 500W continuous power handling with peak capability up to 600W for short durations, enabling control of high-performance motors in demanding applications
• PWM Speed Control: Smooth variable speed regulation from 0-100% using pulse width modulation, delivering precise torque control without mechanical losses
• Hall Sensor Integration: Three-wire Hall effect sensor input with automatic commutation detection, eliminating the need for external sensor modules or complex calibration
• Thermal Management: Integrated temperature sensor with automatic shutdown at 85°C to prevent component damage and extend operational lifespan in continuous-duty applications
• Reverse Polarity Protection: Built-in MOSFET-level protection prevents catastrophic failure from accidental battery reversal or incorrect wiring
• Compact Design: Miniaturized PCB footprint allows integration into space-constrained applications like e-bikes, drones, and portable robotics projects
• Low Electromagnetic Interference: 16 kHz switching frequency minimizes noise generation and RF interference in sensitive electronic systems

Applications and Use Cases

• Electric Bicycles and Scooters: Controls hub motors and mid-drive motors with variable speed regulation based on throttle input, enabling efficient energy management for extended range
• Drone and Quadcopter Propulsion: Manages three-phase brushless motors with precise RPM control for stable flight dynamics and responsive altitude adjustment
• Industrial Machinery: Powers conveyor systems, mixing equipment, and automated production lines requiring smooth acceleration and deceleration profiles
• Robotics and Autonomous Vehicles: Provides directional control and speed modulation for mobile robot platforms, enabling complex motion algorithms and obstacle navigation
• Water Pumping Systems: Controls submersible and surface pump motors with soft-start capabilities to reduce mechanical stress and extend pump lifespan
• HVAC Systems: Manages variable-speed fan motors in heating and cooling applications for energy-efficient temperature regulation

How to Use

Installation begins with identifying the motor's three phase wires and three Hall sensor wires. Connect the phase wires (typically labeled U, V, W) to the corresponding motor output terminals on the controller, ensuring secure crimped connections to minimize resistance. The Hall sensor wires should be connected to the dedicated Hall input header with correct polarity: red to positive, black to ground, and the signal wire to the Hall pin. Apply power through the positive and negative DC input terminals, observing correct polarity to activate the controller's protection circuits. The controller will automatically detect the motor's winding configuration within the first rotation cycle.

For speed control, connect your throttle source (potentiometer, PWM signal, or digital control) to the designated speed input pin. If using a potentiometer, connect the wiper to the analog input and the ends to power and ground. For PWM throttle input from a microcontroller or wireless receiver, apply the signal directly to the PWM input pin with voltage levels matching the controller's 5V logic standard. Test the motor rotation direction by briefly applying power and observing rotation; if direction is reversed, swap any two of the three phase wires. Always mount the controller on a heatsink or thermally conductive surface when operating above 300W to maintain junction temperature below the 85°C shutdown threshold, ensuring reliable long-term performance.

Frequently Asked Questions

Can this controller work with 48V systems or higher voltages?

No, this controller is specifically rated for 12V to 36V DC input only. Using voltages above 36V will exceed the MOSFET ratings and cause immediate failure or fire hazard. For 48V systems, you will need a dedicated 48V-rated controller with appropriately rated power semiconductors. Never attempt to operate this board beyond its maximum voltage specification.

What is the difference between Hall sensor and sensorless brushless controllers?

This Hall sensor-based controller uses three Hall effect sensors to detect rotor position, providing precise commutation timing and enabling smooth operation from standstill. Sensorless controllers estimate rotor position through back-EMF analysis, requiring the motor to reach minimum speed before commutation begins, making them unsuitable for high-torque low-speed applications. Hall sensors offer superior starting torque, better low-speed control, and are mandatory for applications like e-bikes requiring immediate response to throttle input.

How do I connect a potentiometer for variable speed control?

Connect a 10kΩ linear potentiometer's wiper terminal to the analog speed input pin, the clockwise terminal to the 5V reference output, and the counter-clockwise terminal to ground. Rotating the potentiometer will vary the duty cycle from 0% to 100%, smoothly controlling motor speed. Ensure the potentiometer has a 10kΩ nominal resistance for optimal linearity and to prevent excessive current draw from the controller's voltage reference circuit.

What happens if the motor stalls or is mechanically blocked?

When the motor stalls, phase current increases dramatically as back-EMF drops to zero. The integrated current sensing circuit will detect this overcurrent condition and reduce the PWM duty cycle to limit current to safe levels, protecting both the controller and motor windings. If the stall persists beyond 2-3 seconds, the controller will enter a soft shutdown mode and require power cycle reset. Continuous stalling can cause thermal shutdown if the controller cannot dissipate heat adequately.

When will I receive my order?

Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.

What is your return and warranty policy?

We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.

Are bulk discounts available?

Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.

Why Buy from The Engineer Store

• Genuine Products: Sourced directly from authorized distributors with authentication
• Expert Team: Our technical team validates every product before listing
• Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
• Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata
• Payment Options: COD, UPI, credit/debit cards, net banking, EMI available
• Technical Support: 24/7 expert guidance via email and WhatsApp
• Returns: 7-day return policy on manufacturing defects only

Buy Brushless Motor Controller DC 12-36V 500W PWM Driver Board Online in India

Purchase the Brushless Motor Controller DC 12-36V 500W PWM Driver Board online at The Engineer Store, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on Brushless Motor Controller DC 12-36V 500W PWM Driver Board with fast shipping and expert support.

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