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A4 High efficiency Brushless DC Motor Controller

The A4 2313 High-Efficiency Brushless DC Motor Controller delivers powerful, precise, and reliable performance for modern applications. Built for smooth operation, it offers high efficiency, stable speed control, low noise, and excellent heat management. Its compact design and intelligent protection system ensure long-lasting durability. This controller provides an intuitive, efficient solution for users seeking advanced motor control in a wide range of projects.

APT-A4 Motor controller, fit for peak 8kW PMSM and BLDC Hub motor, electric motorcycle drive with high efficiency and wide voltage range, CANBUS ready for intelligent deployment. 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 Built-in Bluetooth capability
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 3-5 KW Hardware configuration adjustable
Peak Power 5-7.5 KW Hardware configuration adjustable; heat sink adjustable
Maximum DC Input Current 200 A.peak Maximum withstand capacity of the DC bus
Rated Output Current 150-200 A.peak Motor phase current (peak); heat sink adjustable
Maximum Output Current 500 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

A4.72S

30-85V

350A

120A

200A

A4.72M

30-85V

400A

135A

200A

A4.72L

30-85V

450A

150A

200A

A4.72U

30-118V

500A

170A

200A

A4.96M

30-118V

400A

150A

200A

A4.120M

30-135V

350A

120A

200A

A4.144M

30-170V

250A

80A

200A

Application field:
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,t, 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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