JYQD-V6.5E 36-72VDC 15A current BLDC motor driver Board for sensorless BLDC motor​

Model number :JYQD-V6.5E

Operating temp. :-20—85℃

Operating voltage :36V-72V DC

Cont.working current :15A

• PWM speed control :PWM frequency:1-20KHZ; Duty cycle 0-100%

Analog voltage speed regulation :0-5V

O.V / L.V protection: YES

Speed pulse signal output :YES

Application notes:

1. Please confirm that the voltage and power parameters of the motor not exceed the range of the driver board as specified.

2. This BLDC motor driver board is used for 3-phase brushless sensorless motor, but not suit for all 3-phase brushless sensorless motors directly. If the driving effect is not good (such as starting jitter, reversing, the motor noload working current is too large, the speed is not stable, the efficiency is low, and can’t start-up with load.) Customers can adjust the resistance and capacitance of the driver board according to the actual situation to achieve the best driving effect (see the attachment for how to do the adjustment)

3. JYQD-V6.5E driver board is bare board without housing and heatsink. If the power of the motor below 100W ,its no need to add heatsink, It only needed to ensure normal ventilation and well insulation. If the power of the motor more than 100W, it must add heatsink like the diagram as below.

4. Please take note that JYQD-V6.5E driver board has no anti-reverse connection protection, it will permanently damage the driver board if reversed polarity connection.

5. The 5V output port on the driver board prohibits connect external device. It is only applicable to the external potentiometer and switch of the board for speed regulation and reversal.

6. The “Signal” terminal on the JYQD-V6.5E driver board is the motor speed pulse output signal (push-pull output), and the maximum output current is less than 5mA.

Driver board diagram Driver board diagram with heatsink

Wiring diagram

5V -----Driver board internal output voltage

Signal ---- Motor speed pulse signal output port, 5V pulse signal.

1. Control port

Z/F---- Rotating direction control ports. Connect “5V” high level or no connect is Forward direction, connect 0 V low level or connect to GND is reverse direction.

VR ----Speed control port. Analog voltage linear speed regulation 0.1v -5V, The input resistance is 20K Ohm ,connect with GND when input PWM speed regulation, PWM frequency:1-20KHZ; Duty cycle 0-100%

GND---Used for Drive board internal control

Torque---For starting torque adjustment use, make sure remove the resistors for fixed-torque on the board before use this function (contact us if you want use this function before using)

2. Power port

MA	motor phase A
MB	motor phase B
MC	motor phase C
GND	DC-
VCC	DC +

3. Use shielded wires if the drivers board has more than 50 cm distance from the motor, otherwise it may lead to abnormal driving, affecting the normal use.

4.Control port distance: 2.54mm,Power port distance:3.96 mm

5. Pay attention to the insulation between the driver MOSFET and the heatsink or the installation plate.

Dimensional drawing

We can supply extra assy such as add heatsink, connector wires.

Changzhou Junqi Mechanical Electronics Co.,Ltd  is a professional Exporter relies on five parnter physical factories.

The main products: Auto Parts( Power window switch,Auto electric water pumps, Auto lock, Door handle, Wipper motor and window regulator motor), Stepping motor and driver, Brushless DC motor and driver, DC Gear Motor, PM Step motor, Brushless dc blower and Special power supply ( Deuterium lamp and power supply)

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Our partner factories can provide talented individuals with access to advanced technology and cutting-edge equipment, ensuring the yield of high-quality products. the partner factories have successfully passed the quality management system certification for the ISO9001, IATF16949 and ISO14001 etc. These are to ensure that all the goods received by our customers pass the inspection.