JYQD-V9.20B 3 Phase BLDC Motor Controller by JUYI Tech | Compact 9V-30V 6A Driver Board Powered by JY03B IC

The JYQD-V9.20B is a high-efficiency, ultra-compact 3 phase bldc motor controller board expertly engineered by JUYI Tech. Built on the reliable and highly integrated JY03B IC core architecture, this sensorless brushless DC motor driver delivers exceptionable stability and advanced control features.

Featuring a flexible bare-board design, the JYQD-V9.20B supports dual-mode speed regulation via PWM or analog voltage inputs. It serves as a plug-and-play solution designed to minimize development complexity, making it an ideal choice for a variety of space-constrained commercial and industrial applications.

• Powered by JY03B IC: Leveraging the mature hardware-based sensorless control algorithms of the JY03B driver chip, providing robust phase detection and intelligent startup mechanisms.
• Flexible Dual Speed Control: Seamlessly accommodates both PWM speed control (1-20kHz frequency range) and analog voltage speed regulation.
• Integrated Speed Monitoring: Features a built-in M-pin speed pulse signal output (5V signal, <5mA current) for real-time motor velocity feedback.
• Bidirectional Direction Control: Includes an intuitive Z/F direction port that easily handles clockwise (CW) or counter-clockwise (CCW) rotation switching.
• Compact Integration-Ready Design: The bare-board form factor allows engineers to seamlessly embed the module directly into existing system hardware layouts.

Thanks to its highly reliable JY03B IC platform, this 3 phase bldc motor controller serves a massive range of professional industries:

• Fluid & Air Control: Medical and commercial water pumps, circulation pumps, household booster pumps.
• Thermal Management: Equipment cooling fans, high-pressure blowers, ventilation fans, and HVAC systems.
• Smart Electronics: Smart home appliances, automatic blinds, and intelligent robotic devices.
• Industrial Automation: Small electric tools, micro-actuators, automated assembly line components, and laboratory equipment.

The driver board includes an easy-to-use control interface:

• GND — Internal control ground
• VR — Speed control input
  • Analog control: 0–5V linear speed regulation
  • PWM control requires common ground
• Z/F — Direction control
  • Connect to 5V or leave floating → one direction
  • Connect to GND → opposite direction
• M — Speed pulse output (5V signal)
• 5V — Internal 5V output (for potentiometer/switch only)

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

Motor phase wires should be kept as short as possible to avoid signal interference.

Control interface pitch: 2.54 mm; Power interface pitch: 3.96 mm

When installing a heatsink or mounting the driver board, ensure proper electrical insulation protection.

JUYI Tech is a leading global pioneer in sensorless BLDC motor control solutions. We specialize in producing robust hardware-driven boards and integrated circuits that eliminate the need for tedious firmware programming, significantly reducing time-to-market for R&D engineers.

Contact our application support team today to order evaluation samples of JYQD-V9.20B or to receive original JY03B IC schematic support.