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brushless fan motor
Ritscher
The Sensored Fan Brushless DC Motor is an integrated, high-performance cooling solution that combines a brushless DC motor with embedded position sensors and an optimized axial fan impeller. Engineered for applications demanding precise speed control, high reliability, and intelligent thermal management, this motor represents the pinnacle of efficiency and controllability in modern forced-air cooling systems.
Precise Closed-Loop Speed Control: Equipped with integrated Hall-effect sensors that provide real-time rotor position feedback to the controller. This enables smooth start-up from standstill, exact RPM regulation under varying loads, and excellent low-speed torque performance without cogging.
High Efficiency & Long Lifespan: The brushless design eliminates friction and wear from brushes/commutators, converting more electrical power into airflow while offering a significantly longer operational life compared to brushed fan motors.
Intelligent System Integration: The sensor feedback allows for seamless integration into smart systems. The motor's speed can be dynamically controlled via a PWM signal or communication protocols (e.g., 4-wire PWM, I²C, SMBus) based on real-time temperature data, enabling quiet operation and optimal power consumption.
Superior Reliability & Durability: Ideal for critical or hard-to-access applications. The absence of arcing brushes makes it suitable for volatile environments, and its robust construction ensures consistent performance in demanding conditions.
Quiet & Smooth Operation: Sensor-based commutation provides perfectly timed phase switching, resulting in exceptionally smooth rotation, reduced torque ripple, and lower audible and electrical noise.
Wide Operating Speed Range: Capable of stable operation from very low to very high RPMs, allowing for a broad spectrum of cooling performance from "silent mode" to "maximum boost."
Motor Type: 3-Phase, Inner-Rotor, Sensored Brushless DC Motor.
Feedback System: Integrated Hall-effect sensors (typically 3).
Control Interface: 4-wire standard (Power+, Ground, Tachometer Output, PWM Speed Control Input) for direct system integration.
Operating Voltage: Common ranges: DC 5V, 12V, 24V, or 48V.
Speed Control: PWM duty cycle modulation (e.g., 25kHz frequency) for precise speed adjustment from 20% to 100% of max RPM.
Tachometer Output (TACH): Provides a 2-pulse or 4-pulse per revolution signal for real-time speed monitoring and system diagnostics.
Protection Features: Often includes built-in locked-rotor protection, over-current protection, and reverse polarity protection.
Fan Impeller: Aerodynamically optimized axial fan blades, available in various sizes (e.g., 40mm, 60mm, 80mm, 120mm) and materials (PBT, PC).
Bearing Type: Long-life dual ball bearings or hydrodynamic bearings (FDB) for superior reliability and low noise.
This motor is the preferred choice for applications requiring intelligent, reliable, and controllable cooling:
High-End Computing & Servers: CPU coolers, GPU cooling, server chassis fans, and PSU fans where thermal management is critical.
Telecom & Networking Equipment: Cooling for routers, switches, 5G base stations, and other always-on infrastructure.
Industrial Electronics: Control cabinets, PLC enclosures, laser equipment, and power converters.
Medical & Laboratory Equipment: Precision cooling in imaging systems, DNA analyzers, and diagnostic devices where noise and reliability are paramount.
Professional AV & Prosumer Electronics: Projectors, high-fidelity audio amplifiers, and broadcast equipment.
For system designers who cannot compromise on cooling reliability or control granularity, the Sensored Fan BLDC Motor is the definitive solution. It moves beyond simple on/off functionality to become an intelligent, communicative component of your thermal management system. By offering precise speed control, real-time monitoring, and unparalleled durability, it ensures optimal device performance, minimizes acoustic footprint, and extends the lifespan of the equipment it cools. It is the smart, silent, and robust heart of advanced cooling architectures.
Note: Performance in terms of airflow (CFM), static pressure, and acoustic noise is dependent on the specific fan size and blade design. System integrators should match the motor's PWM control logic (e.g., 25kHz, 100Hz) and TACH signal type with their host controller for seamless operation.
The Sensored Fan Brushless DC Motor is an integrated, high-performance cooling solution that combines a brushless DC motor with embedded position sensors and an optimized axial fan impeller. Engineered for applications demanding precise speed control, high reliability, and intelligent thermal management, this motor represents the pinnacle of efficiency and controllability in modern forced-air cooling systems.
Precise Closed-Loop Speed Control: Equipped with integrated Hall-effect sensors that provide real-time rotor position feedback to the controller. This enables smooth start-up from standstill, exact RPM regulation under varying loads, and excellent low-speed torque performance without cogging.
High Efficiency & Long Lifespan: The brushless design eliminates friction and wear from brushes/commutators, converting more electrical power into airflow while offering a significantly longer operational life compared to brushed fan motors.
Intelligent System Integration: The sensor feedback allows for seamless integration into smart systems. The motor's speed can be dynamically controlled via a PWM signal or communication protocols (e.g., 4-wire PWM, I²C, SMBus) based on real-time temperature data, enabling quiet operation and optimal power consumption.
Superior Reliability & Durability: Ideal for critical or hard-to-access applications. The absence of arcing brushes makes it suitable for volatile environments, and its robust construction ensures consistent performance in demanding conditions.
Quiet & Smooth Operation: Sensor-based commutation provides perfectly timed phase switching, resulting in exceptionally smooth rotation, reduced torque ripple, and lower audible and electrical noise.
Wide Operating Speed Range: Capable of stable operation from very low to very high RPMs, allowing for a broad spectrum of cooling performance from "silent mode" to "maximum boost."
Motor Type: 3-Phase, Inner-Rotor, Sensored Brushless DC Motor.
Feedback System: Integrated Hall-effect sensors (typically 3).
Control Interface: 4-wire standard (Power+, Ground, Tachometer Output, PWM Speed Control Input) for direct system integration.
Operating Voltage: Common ranges: DC 5V, 12V, 24V, or 48V.
Speed Control: PWM duty cycle modulation (e.g., 25kHz frequency) for precise speed adjustment from 20% to 100% of max RPM.
Tachometer Output (TACH): Provides a 2-pulse or 4-pulse per revolution signal for real-time speed monitoring and system diagnostics.
Protection Features: Often includes built-in locked-rotor protection, over-current protection, and reverse polarity protection.
Fan Impeller: Aerodynamically optimized axial fan blades, available in various sizes (e.g., 40mm, 60mm, 80mm, 120mm) and materials (PBT, PC).
Bearing Type: Long-life dual ball bearings or hydrodynamic bearings (FDB) for superior reliability and low noise.
This motor is the preferred choice for applications requiring intelligent, reliable, and controllable cooling:
High-End Computing & Servers: CPU coolers, GPU cooling, server chassis fans, and PSU fans where thermal management is critical.
Telecom & Networking Equipment: Cooling for routers, switches, 5G base stations, and other always-on infrastructure.
Industrial Electronics: Control cabinets, PLC enclosures, laser equipment, and power converters.
Medical & Laboratory Equipment: Precision cooling in imaging systems, DNA analyzers, and diagnostic devices where noise and reliability are paramount.
Professional AV & Prosumer Electronics: Projectors, high-fidelity audio amplifiers, and broadcast equipment.
For system designers who cannot compromise on cooling reliability or control granularity, the Sensored Fan BLDC Motor is the definitive solution. It moves beyond simple on/off functionality to become an intelligent, communicative component of your thermal management system. By offering precise speed control, real-time monitoring, and unparalleled durability, it ensures optimal device performance, minimizes acoustic footprint, and extends the lifespan of the equipment it cools. It is the smart, silent, and robust heart of advanced cooling architectures.
Note: Performance in terms of airflow (CFM), static pressure, and acoustic noise is dependent on the specific fan size and blade design. System integrators should match the motor's PWM control logic (e.g., 25kHz, 100Hz) and TACH signal type with their host controller for seamless operation.
