JUYI Tech JYQD-V9.3E Sensorless 3 Phase BLDC Motor Controller Board | 10V 12V 24V 36V 10A 15A 20A Max

Product Overview

The JYQD-V9.3E is a highly efficient, compact, and open-frame 3 phase bldc motor controller board engineered specifically for three-phase sensorless brushless DC motors. Integrating advanced control circuitry, this driver board delivers exceptional stability, ultra-smooth speed regulation, and long-term reliable performance. It features a wide operating voltage range of 10V to 36V DC and supports a working current of up to 20A , making it an ideal choice for applications demanding high efficiency, flexible speed adjustments, and a space-saving design.

Key Features & Technical Highlights

• Advanced Sensorless Control: Seamlessly drives sensorless brushless DC motors with robust startup and operation algorithms.
• High Power & Efficiency: Supports a wide 10V-36V DC voltage range and up to 20A maximum output current. No forced cooling is required for motors under 100W under proper ventilation.
• Dual Flexible Speed Control: Offers versatile integration with dual modes—0-5V analog voltage control and 1-20 kHz PWM speed control (0-100% duty cycle).
• Direction & Monitoring: Features an onboard Forward/Reverse (Z/F) rotation control switch interface and a dedicated 5V speed pulse signal output (M pin, <5mA) for real-time motor speed monitoring.
• Compact Open-Frame Design: Features a minimal footprint measuring just 63 * 42.5mm , designed with a 2.54 mm control interface pitch and a 3.96 mm power interface pitch for straightforward installation.

Product Specifications Table

Typical Applications

This industrial-grade 3 phase bldc motor controller is highly versatile and widely applied in:

• Cooling fans & ventilation systems

• Miniature air pumps & liquid pumps

• Small electric tools

• Smart home appliances

• Automotive auxiliary systems

• Industrial automation equipment

Wiring & Interface Connection Notes

• GND – Control ground 
• VR – Speed control input. Supports 0–5V analog voltage control. Motor speed increases linearly with voltage. PWM control requires a common ground with the driver board. 
• Z/F – Direction control input. Connect to 5V or leave floating for one rotation direction; connect to GND for the opposite direction. 
• M – Speed pulse output. Provides 5V pulse signal for motor speed monitoring. 
• 5V – Internal 5V output for external potentiometer or switch used for speed and direction control.

• P+ / VCC – DC Power Input Positive 
• P- / GND – DC Power Input Negative 
• MA(U)/ MB(V) / MC(W) – Motor phase outputs

Why Choose JUYI TECH?

As a leading innovator in brushless DC motor driving technology, Shanghai Juyi Electronic Technology Development Co., Ltd. (JUYI Tech) delivers reliable, compact, and high-efficiency motor control solutions globally. For technical support, custom parameter adjustments (e.g., driver board capacitors adjustment for specific motor compatibility) , or bulk product inquiries, please contact our support team at sales@juyitech.com or via WhatsApp at +86 185 3822 2869.