6-72V DC Brushless Motor Driver Controller – Digital Display
6-72V DC Brushless Motor Driver Controller – Digital Display
6–72V DC Brushless Motor Driver with Digital Display & Forward/Reverse Control
Take full command of your three-phase brushless DC motor with this versatile, high-performance motor driver controller. Featuring a wide 6–72V input range, a real-time digital display, and built-in forward/reverse switching, this controller is the ideal speed regulation solution for model aircraft, water pumps, fans, and a broad range of DIY and industrial DC motor applications. Made in Mainland China.
Key Features
- Wide Voltage Compatibility (DC 6–72V): Supports a broad range of DC power supplies, making it adaptable to motors of many different rated voltages — simply match input voltage to your motor's rating.
- High Current Output (up to 15A continuous): Handles demanding, high-load applications with overload protection automatically engaging at 15A.
- Real-Time Digital Display: Onboard screen clearly shows speed percentage (0–100%) for easy, at-a-glance monitoring and debugging during operation.
- Forward & Reverse Control: Bidirectional motor direction switching gives you flexible, versatile control over your motor's running direction.
- Three-Phase Brushless Design: Low-noise, high-efficiency operation — ideal for model aircraft ESC replacement, water pump controllers, and fan speed regulation.
- External PWM Compatible: Supports external PWM input (frequency 1–10 kHz, amplitude 3.3–5V) for integration with microcontrollers and automation systems.
- Potentiometer Speed Regulation: Smooth, precise speed adjustment via the included knob/potentiometer.
- No Hall Sensor Required: Sensorless design simplifies wiring and installation.
Technical Specifications
| Input Voltage | DC 6–72V |
| Maximum Continuous Current | 15A |
| Overload Protection | 15A |
| Supported Motor Type | DC Three-Phase Brushless Motor |
| Direction Control | Forward / Reverse (Bidirectional) |
| Speed Regulation Method | Potentiometer (knob) |
| External PWM Input | Frequency: 1–10 kHz | Amplitude: 3.3–5V |
| Display Content | Speed percentage 0–100% (not actual RPM) |
| Display Screen Opening | 32mm (L) × 21mm (H) |
| Hall Sensor | Not required (Sensorless) |
| Forward/Reverse Brake Signal | Active low (low potential effective) |
| Country of Origin | Mainland China |
Important Safety Notices
- Always observe correct positive/negative polarity on input. Match input voltage to your motor's rated voltage (within DC 6–72V range).
- Do NOT connect 220V AC power — DC input only.
- When using external PWM speed regulation, disconnect the potentiometer signal line first.
- Never connect or disconnect wires while power is on.
- Avoid hard braking at full speed with high current. Reduce speed to below 50% before engaging forward/reverse braking stop ports. The brake/start-stop signal ports are low-current MCU signals — keep them isolated from high-voltage lines.
- The digital display shows speed percentage only (0–100%) — it does not display actual motor RPM.
- Color may vary slightly from photos due to monitor/lighting differences. Dimensions may vary ±1–10mm due to manual measurement.
Applications
This brushless motor controller is well suited for: model aircraft (DIY ESC), water pumps, cooling fans, electric scooters, robotics, conveyor systems, DIY electric vehicles, and any project requiring a sensorless three-phase brushless DC motor driver with variable speed control.
What's in the Box
- 1× Motor Controller Board
- 1× Digital Display Module
- 1× Potentiometer Knob
For general electrical safety guidelines relevant to DC motor controllers and electronic speed regulators, refer to the U.S. Consumer Product Safety Commission (CPSC). For technical standards related to electronic controllers and power systems, visit NIST (National Institute of Standards and Technology).
Frequently Asked Questions
Q: What types of motors are compatible with this brushless motor driver controller?
A: This controller is designed specifically for DC three-phase brushless motors (sensorless/no Hall) with a rated voltage between 6V and 72V. It is commonly used with motors in model aircraft, water pumps, fans, and similar applications. It does not support brushed DC motors, stepper motors, or AC motors.
Q: Can I control the speed of the motor using a microcontroller or Arduino?
A: Yes! This controller supports external PWM input at a frequency of 1–10 kHz with a signal amplitude of 3.3–5V, making it compatible with microcontrollers such as Arduino, ESP32, and Raspberry Pi. When switching to external PWM control, disconnect the potentiometer signal wire to avoid conflicts.
Q: What does the digital display show — actual RPM or something else?
A: The digital display shows the speed percentage (0–100%), not the actual rotational speed (RPM) of the motor. It's useful for monitoring and adjusting the output level during setup and operation.
Q: Is it safe to run this controller at full 15A current continuously?
A: The controller supports up to 15A continuous current with built-in overload protection. For long-term high-current operation, ensure adequate ventilation or heat dissipation. Avoid sudden full-speed braking at high current — reduce speed to below 50% before engaging the brake/stop function for best safety and longevity.