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R3 Compact design Brushless DC Motor Controller

The R3 2308 Compact Design Brushless DC Motor Controller delivers high performance in a remarkably small footprint—ideal for space-constrained industrial and automation applications. Engineered for efficiency and reliability, it features smooth speed control, low electromagnetic interference, and robust thermal management. Its compact form factor doesn’t compromise power, supporting precise motor control in demanding environments.

APT-R3 Motor controller, Drive for a rated 3kW PMSM mid drive motor and BLDC Hub motor, special optimization for an electric motorcycle with 80kmph speed, Rich functional interfaces with CANBUS. Windows software and mobile apps supported.

Technical Parameters

Application&Features

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Communication Interface VCU Communication CANBUS
(Isolation type, default 120Ω terminal resistor)
Upper
computer
communication
UART-TTL
Motor-related Motor
temperature
sensing
interface
NTC/PTC(default parameters KTY83-122)
Position signal avoidance Hall encoder or magnetic encoder
Motor-type Permanent magnet synchronous motor,
DC brushless motor
Equipment Support Bluetooth or USB-TTL
Software Adaptation APT eMotion
Executive Standard Electrical: GB/T18488 Salt Spray: GB/T2423.17
IP Rating: GB/T4208-2017 Vibration: GB/T2423.10-2008
Input Rated Voltage 30-170 V Power devices vary across different voltage platforms
Control Mode Vector Control - FOC Sine Wave Modulation
Rated Power 1.8-2.5 KW Hardware configuration adjustable
Peak Power 3.5-5 KW Hardware configuration adjustable
Maximum DC Input Current 180 A.peak Maximum withstand capacity of the DC bus
Rated Output Current 120 A.peak Motor phase current (peak)
Maximum Output Current 350 A.peak Motor phase current (peak)
Maximum Conversion Efficiency 98% - -


Orderable Specifications

Product
Model
Voltage
range
Motor phase
current limit
DC Input current
Default limit Max. capability
R3.72S 30-85V 260A 65A 180A
R3.72M 30-85V 300A 80A 180A
R3.72L 30-85V 330A 100A 180A
R3.96M 30-118V 250A 80A 180A

Application Fields:
1. Pure electric and hybrid systems (traction or auxiliary):
• Road vehicle, utility vehicle, high-power electric motorcycle
• Off-road vehicles (tractors, bulldozers, special off-road vehicles, etc.)
• Electric boat, speedboat, and other fields of EV conversion

2. Design features:

The electrical system architecture is laid out in advance for automotive applications
Low voltage, high power, economical and efficient, very suitable for Off-road machinery


3. Technical features:
• Field-oriented vector control, in conjunction with APT-tuned algorithms, provides peak torque and optimal efficiency across the entire operating range
• Advanced Pulse Width Modulation technology provides efficient use of battery voltage, low motor harmonics, low torque ripple, and minimized switching losses
• Tunable to any BLDC or IPM motor. Fully programmable for optimal match to individual motor characteristics
• Field-Programmable, with FLASH downloadable main operating code
• Extremely wide torque/speed range, including full regeneration capability
• The unique software makes the system application easier than ever
• Benefit from the many decades of APT experience in the EV industry, quickly and simply decide your own proprietary PID parameter to differentiate your systems from your competition



  • Individual buyers
  • Corporate Procurement

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