{"product_id":"220v-250w-foc-bldc-motor-controller-drive-board-sensorless","title":"220V 250W FOC BLDC Motor Controller Drive Board – Sensorless","description":"\n\u003ch2\u003e220V 250W Three-Phase FOC BLDC Motor Controller Drive Board – Sensorless (No Hall)\u003c\/h2\u003e\n\u003cp\u003eThis high-performance FOC (Field-Oriented Control) sine wave motor drive board is built around the powerful \u003cstrong\u003eSNR8652M 32-bit MCU\u003c\/strong\u003e, delivering smooth, efficient, and precise control of three-phase DC brushless permanent magnet synchronous motors (BLDC\/PMSM) — all without the need for Hall sensors. Compact, feature-rich, and easy to integrate, it's the ideal solution for engineers and makers working on high-voltage motor-driven applications.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFOC Sine Wave Drive\u003c\/strong\u003e – Smooth torque delivery and quiet motor operation via field-oriented control\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eZero-Speed Closed-Loop Start\u003c\/strong\u003e – Reliable startup performance from standstill\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSensorless (No Hall) Observer\u003c\/strong\u003e – Eliminates Hall sensor wiring complexity\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePhase Compensation Algorithm\u003c\/strong\u003e – Improves motor efficiency and stability\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVelocity Closed-Loop PID Control\u003c\/strong\u003e – Accurate and stable speed regulation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLimited Power PID Algorithm\u003c\/strong\u003e – Prevents motor and drive overload\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDownwind (Freewheel) Start Algorithm\u003c\/strong\u003e – Safely starts motors already spinning\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMotor Start\/Stop, Forward\/Reverse Switching\u003c\/strong\u003e – Onboard ship-type switch and CW\/CCW steering interface\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePotentiometer \u0026amp; PWM Speed Control\u003c\/strong\u003e – 0–5V onboard pot or external PWM (1–20 kHz, 0–100% duty cycle)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFG Speed Feedback\u003c\/strong\u003e – RPM = FG Frequency (Hz) × 60 ÷ Pole Pairs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOnboard LED Status Indicators\u003c\/strong\u003e – Standby, running, and error states at a glance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e433 MHz Wireless Remote Control Receiver\u003c\/strong\u003e – Reserved wireless control interface included\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUART Serial Port\u003c\/strong\u003e – Reserved for custom serial control development\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOnboard Programming Interface\u003c\/strong\u003e – Easily update firmware via burn interface\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eBuilt-In Motor Protection\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eIGBT over-temperature protection\u003c\/li\u003e\n  \u003cli\u003ePhase-loss protection\u003c\/li\u003e\n  \u003cli\u003eLocked-rotor protection\u003c\/li\u003e\n  \u003cli\u003eOver-current protection\u003c\/li\u003e\n  \u003cli\u003eOver-voltage \u0026amp; under-voltage protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWorking Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e220V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Drive Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e250W\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMotor Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThree-Phase BLDC \/ PMSM (Sensorless)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCore MCU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSNR8652M (32-bit)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBoard Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e118 × 72 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePCB Thickness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.6 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePWM Frequency Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1–20 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpeed Control Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–5V Potentiometer or PWM Signal\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWireless Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e433 MHz (reserved)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeat Sink\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIncluded (supports up to 250W); forced cooling required above 50W\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cp\u003eThis drive board is well-suited for a wide range of 220V brushless motor applications, including:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-pressure water pumps\u003c\/li\u003e\n  \u003cli\u003eHigh-pressure gear motors\u003c\/li\u003e\n  \u003cli\u003eIndustrial fans and ventilation systems\u003c\/li\u003e\n  \u003cli\u003eAir conditioning units\u003c\/li\u003e\n  \u003cli\u003eCeiling fans\u003c\/li\u003e\n  \u003cli\u003eSmoke\/fog machines\u003c\/li\u003e\n  \u003cli\u003eHigh-pressure blenders and food processing equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThermal Management Notes\u003c\/h3\u003e\n\u003cp\u003eThe board ships with a heat sink pre-installed. For motor drive applications \u003cstrong\u003eunder 50W\u003c\/strong\u003e, natural convection with adequate ventilation is sufficient. For applications \u003cstrong\u003eexceeding 50W\u003c\/strong\u003e, active (forced-air) cooling is required. The included heat sink is rated to handle continuous operation at 250W with proper airflow.\u003c\/p\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1× FOC BLDC Motor Controller Drive Board (with heat sink)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor more information on electrical safety standards and best practices when working with motor drive systems, refer to \u003ca href=\"https:\/\/www.osha.gov\/electrical\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eOSHA Electrical Safety Guidelines\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Does this FOC BLDC motor controller work without Hall sensors?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. This drive board uses a sensorless (no Hall) FOC algorithm with an onboard noninductive observer. It does not require Hall-effect position sensors, simplifying wiring and making it compatible with standard three-phase brushless permanent magnet synchronous motors (PMSM\/BLDC) without Hall wiring harnesses.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the maximum motor power this controller can handle?\u003c\/h4\u003e\n\u003cp\u003eA: The board is rated for up to 250W at 220V AC. The included heat sink supports this full power level provided forced-air (active) cooling is applied. For motors below 50W, passive ventilation is adequate.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I control the motor speed with this drive board?\u003c\/h4\u003e\n\u003cp\u003eA: Speed can be set in two ways: (1) using the onboard potentiometer (0–5V analog input), or (2) via an external PWM signal on the dedicated PWM speed control interface (frequency range 1–20 kHz, duty cycle 0–100%). The optional 433 MHz wireless remote receiver is also reserved for future wireless speed control development.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I change the motor's rotation direction?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The board includes a CW\/CCW steering interface. Leave the interface pin floating (suspended) for clockwise (CW) rotation, or connect it to GND for counterclockwise (CCW) rotation. Direction switching is straightforward during both startup and operation.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is programming or firmware development required to use this controller?\u003c\/h4\u003e\n\u003cp\u003eA: The core FOC algorithm, closed-loop control, and protection logic are pre-loaded on the SNR8652M MCU. The board can be used out of the box for standard BLDC motor driving. An onboard UART serial port and programming interface are included for users who wish to perform secondary development or customize functionality.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Does this FOC BLDC motor controller work without Hall sensors?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. This drive board uses a sensorless (no Hall) FOC algorithm with an onboard noninductive observer. It does not require Hall-effect position sensors, simplifying wiring and making it compatible with standard three-phase brushless permanent magnet synchronous motors (PMSM\/BLDC) without Hall wiring harnesses.\"}}, {\"@type\": \"Question\", \"name\": \"What is the maximum motor power this controller can handle?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The board is rated for up to 250W at 220V AC. 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