Category Archives: bike motor controller

48V 500W dual drive hub motor controller

Posted by on April 1, 2025 No comments

48V 500W dual drive bike motor controller

More info about this hub motor controller

Features:
Suitable for Electric for electric bike & scooter
>>. MOSFET: 6 PCS + 6 PCS
>>. With LCD: YES
>>. Rated Voltage: DC 48 Volts
>>. Min. Voltage: DC 40 ± 0.5 V
>>. Power: 500 Watts
>>. Casing material: aluminium
>>. Maximum Current: 15 A + 15 Amps
>>. Thermal: aluminum shell and the substrate – Black color
>>. 3 phase 120° brushless motor
>>. Operating Conditions: -20~45 °C
>>. Waterproof design
>>. Size: 164 mm L × 53 mm W × 33 mm H
>>. Weight: 0.65 kg

With LCD
Display: speed, mileage, battery gauge…

Functions:
. Mute when start
. Speed limit
. Power cut brake
. Blockage protection
. Current limit protection
. E-ABS brake
. Short circuit protection
. Avoid out of control
. 1:1 pedal assist function
. Undervoltage protection

Additional features:
* Cruise
* Reverse
* Pedal assist ( 1 – 5 )
* Mph / kmh
* ….

looking an electric bike controller for 48V 1000W hub motor

Posted by on March 13, 2025 Comments Off on looking an electric bike controller for 48V 1000W hub motor

I am using a brushless and gearless DC hub motor that is 48V 1000W. I am looking for a suitable bike motor controller for my project.

I want to implement regen braking, cruise, reverse, setting a speed limit etc.
Will this 48V 500W controller works for this 1000W motor?

I am quite hesitant to choose the 48V 1000W brushless motor controller displayed in the web here as I am afraid that the high power may drain too much power from the battery.

I am using a 48V 10Ah battery. It should be sufficient to power the 1000W BLDC hub motor but to power both the motor and controller, it may overstrain the battery.

Can you confirm that your brushless motor controller can set max speed limit, regen brake, reverse and cruise control?
Basically, I just need to buy the three button switch and every of the button can be used to perform on/off operation such as horn, lights, cruise, regen brake etc right?
What is the default max speed limit in the brushless motor controller? Do you change and set the max speed from the LCD display, controller or both? After I set the max speed and I do not want the max speed to be change, is it possible?
The hub motor can still work with the brushless motor controller, even with or without the LCD screen right?

Do you have a similar brushless and gearless hub motor like the one that is:

1) 14″ inch – 16″ inch (including solid rubber tyre)
2) Power is at least 750 W to 1000W max
3) Can implement regen brake, cruise, reverse, set max speed limit

If you have, can I have some details for these hub motors? I need them work with LCD brushless motor controller.

bldc motor interaction principle

Posted by on March 12, 2025 Comments Off on bldc motor interaction principle

Based on the principle of rotation of the motor for the Fleming left hand rule, when a wire placed in a magnetic field, if the current through the wire, the wire will cut the wires generate the magnetic field lines move. Current into the coil creates a magnetic field using the current magnetic effect, the solenoid magnet at a fixed continuously rotating device that can convert electrical energy into mechanical energy. And a permanent magnet or by another group of the magnetic field generated by the coil to generate power bldc motor interaction principle is the stator does not move, the force generated by interaction of the rotor according to the direction of movement. bldc motor controller is on the alternating current through the stator windings, a rotating magnetic field, rotating magnetic field attracts the rotor rotates bldc motor with the basic structure include “armature”, “field magnet,” “slip ring”, “brush” . Armature: You can rotate around the axis of the soft iron core wound multi-turn coil. Field magnet: the strong magnetic field of permanent magnet or an electromagnet. Collector ring: coil about two to two semi-circular termination of slip ring, with the coil rotation for changing the current direction of the change to the device. Each half-circle rotation (180 degrees), the coil current to change direction once. Brushes: carbon usually made of slip ring brush contact with a fixed location to be connected to power.

Leaf New 48V LCD brushless motor controller

Posted by on March 11, 2025 Comments Off on Leaf New 48V LCD brushless motor controller

48V 1000W Electric Bicycle Brushless Motor Controller For E-bike & Scooter — 12-MOSFET

Features:
Suitable for Electric for electric bike & scooter
Rated Voltage: DC 48 Volts
Min. Voltage: DC 40 ± 0.5 V
Rated power: 1000 Watts
Casing material: aluminium
Maximum Current: 26 A ± 1 Amps
Thermal: aluminum shell and the substrate

3 phase 120° brushless motor
Operating Conditions: -20~45 °C
Waterproof design
Size: 171 mm L × 82 mm W × 42 mm H
Weight: 0.66 kg

Working with LCD
Display: speed, mileage, battery gauge…

Functions:
Mute when start
Speed limit
Power cut brake
Blockage protection
Current limit protection
E-ABS brake
Short circuit protection
Avoid out of control
1:1 pedal assist function
Under voltage protection

Additional features:
* Cruise
* Reverse
* Regen brake
* Pedal assist ( 1 – 5 )
* Mph / kmh
* ….

LCD bldc motor controller for e-bike

Posted by on March 8, 2025 Comments Off on LCD bldc motor controller for e-bike

There are two types of hub motor wheels are used for e-bikes. One type is hub bldc motor , the other is brushed hub motor. Because the brushed motor had some disadvantage of high noise, shorter-use life, low efficiency..

These days hub bldc motor wheels are used for electric bikes widely and had replaced brushed hub motor.

So more and more motor controller are showed in market. For example: cruise brushless controller , regen brushless controller, programmable brushless controller, lcd bldc motor controller…

Convert a bike to an e-bike, we should choose a hub bldc motor wheel with brushless controller and throttle, brake lever,on/off switches,disk brake,front&rear lights,horn..etc accessories

European like 250w hub bldc motor and North America prefer 750w / 1000w bldc motor. How to purchase a good brushless controller to drive this bldc motor .

Generally 250w bldc motor need to be driven by 6-MOSFET brushless controller, and a 9-MOSFET motor controller dirves a 750w bldc motor,a 12-MOSFET brushless controller dirves a 1000w bldc motor.

Now nearly all types of brushless controller for e-bikes have cruise, alert, reverse, limited speed..etc. function.

If you buy 1 set 48V DIY kit, you had better to choose 48V 12-MOSFET/15-MOSFET brushless controller. Please don’t order 9-MOSFET motor controller to drive your 1000W brushless controller, it’s the heart of e-bike. 1000W bldc motor will bring larger current and high temperature, 9-MOSFET can’t afford.

For the bulk .of motor controller, larger, better. Larger bulk has better cool system.

In past, there was a guy sold regen motor controller, but nearly all sold regen controllers were broken in 30 days. Because when you brake, this regen controller will bring twice current to stop your e-bike, thus larger current would break MOSFET directly.

Now programmable controller is still showed in market. This brushless controller seem has nice face, but its head is small, can’t stuff more MOSFET. Use this brushless controller to drive 750w / 1000w bike system and break this nice face controller is normal. Don’t be arrest by programmable. You will find nothing for actual use when you use.

We have LCD cruise controller, more MOSFET, don’t worry your motor controller will be broken.
LCD bldc motor brushless controller for e-bike.

Bldc motor, motor controller , brushless controller supplier: Leaf Motor Technology Co.,Ltd

36V 500W / 36V 750W brushless motor controller

Posted by on March 8, 2025 Comments Off on 36V 500W / 36V 750W brushless motor controller

DC motor controller has two types:brushed & brushless controller.
The principle of brushed motor controller is much simple.But brushless motor controller should control brushless motor phase,limit starting current,control speed,PWM control etc.
MOSFET is an important part of controller.More MOSFET,controller is more expensive.
Generally 6-MOSFET brushless controller is used to control 36V 250W bldc hub motor.
36V 750W brushless motor should be controlled by 12-MOSFET controller.
Now we use 15-MOSFET to control 48V 1000W brushless motor.
Never worry break controller.

Model:LCC-001 36V 500W / 36V 750W brushless motor controller
Working with LCD
Special Features:
1.EABS System
2.1 + 1 Assistance
3.Idle Running Protection
4.Dynamic Motor Lock System
5.Motor Shaft Lock Protection
6.Power Tube Protection
7.Cruise Speed Control
8.Self-check Protection
9.Speed Limit
10.Remote Control Anti-theft

This 36V 500W electric bike conversion kit,Product list:
1.1 pcs of 20″36V 500W rear motor wheel (fast speed);
2.1 pcs of 36V 500W controller with LCD (display speed,battery gauge,mileage..);
3.1 pcs of 36V twist throttle with battery gauge;
4.1 pcs of brake lever;
5.1 pcs of three – button ON/OFF switch is used to control horn,front&rear lights,etc.
6.1 pcs of threaded-adapter is used to fix disk brake

48V 500W dual drive controller

Posted by on February 20, 2025 Comments Off on 48V 500W dual drive controller

48V 500W Electric Bicycle Dual Drive Controller For E-bike & Scooter.
It’s fit to drive 48V 500W brushless with hall sensor hub motors.

Features:
Suitable for Electric for electric bike & scooter
>>. MOSFET: 6 PCS + 6 PCS
>>. With LCD: YES
>>. Rated Voltage: DC 48 Volts
>>. Min. Voltage: DC 40 ± 0.5 V
>>. Power: 500 Watts
>>. Casing material: aluminium
>>. Maximum Current: 15 A + 15 Amps
>>. Thermal: aluminum shell and the substrate – Black color
>>. 3 phase 120° brushless motor
>>. Operating Conditions: -20~45 °C
>>. Waterproof design
>>. Size: 164 mm L × 53 mm W × 33 mm H
>>. Weight: 0.65 kg

Working with LCD
Display: speed, mileage, battery gauge…

Functions:
. Mute when start
. Speed limit
. Power cut brake
. Blockage protection
. Current limit protection
. E-ABS brake
. Short circuit protection
. Avoid out of control
. 1:1 pedal assist function
. Undervoltage protection

Additional features:
* Cruise
* Reverse
* Pedal assist ( 1 – 5 )
* Mph / kmh
* ….

motor controller cut off voltage

Posted by on February 8, 2023 Comments Off on motor controller cut off voltage

Each motor controller has min cut off voltage and max working voltage.

For example:
48v Controller’s cut off at 40v. Less than 40v, not work.
36v Controller’s cut off at 30v. Less than 30v, not work.

For 48v electric bike motor kit system.We recommend reach set cut off voltage to over 42v by LCD. Less than 42v,should charge battery. It’s good for battery.

These days,all kinds of lithium batteries was made by 13 series connection or 14 series connection cells to be 48v, 52v.

Each cell – min about 2.8v , max about 4.2v
13 series – 4.2v x 13 = 54.6v
14 series – 4.2v x 14 = 58.8v

Overdischarge and overcharge both Not good for battery.
For example: if set it to 40v (controller’s cut off voltage is 40v)

2.8 x 14 = 39.2v (about 40v)

If 14 series connection cells ‘s min voltage to be 2.8v at the same time. That’s good.

But ride half a year, cut off voltage still 40v.
If No. one cell ‘s min voltage is 2.7v, second is 2.9v, third cell is 2.9v….
Total voltage is 40.4v ( 2.9 x 13 + 2.7v)

If first cell’s voltage to be 2.7v, it’s overdischarge, battery can’t to be charged. Battery is broken.
So we recommend charge battery when it reach about 42v or over.

If min 42v
No. one cell ‘s min voltage is 2.9v, second is 3.0v, third cell is 3.0v….
Total voltage is 41.9 v ( 3.0 x 13 + 2.9v)

New battery doesn’t have this issue. If ride 1-2 month, we recommend charge battery @ 42v or over.

For example: cell phone, only leave 20%,need to charge. If use out all that will break cells, also very hard to charge.

So we recommend set cut off voltage by LCD that over controller’s cut off voltage.

Why choose leaf motor controller

Posted by on February 6, 2023 Comments Off on Why choose leaf motor controller

Three years ago, leaf motor started to design controllers,manufacture controllers,test controllers,modify and re-test. Day by day. three years past,compare with other controllers,leaf three mode controllers are the best.

In market,there are square wave, sine wave, two kinds of brushless controllers that drive brushless with hall sensor motor.Every one knows,hall sensor is electronic component.It works in the rotating rotor.It’s easy to be broken.

If one hall sensor is broken, the electric bike can’t work. Need to replace hall, but it’s very hard to replace hall.Not easy. Replace the whole of winding rotor, it’s too expensive.

In past,leaf sell KT controller,met hall sensor issue, should replace the whole of winding rotor to customer.

The price for one hall sensor is less than $1USD
But, the whole of winding rotor over $100USD includes shipping cost.
Replace winding rotor waste too much.

Sine 2019,leaf motor started to manufacture theirselves controllers.
Leaf Brand New electric motor controller with Sine wave, Square wave, No hall, three modes compatible.

What are three modes?
* First mode: Sine Wave Status – Motor without noise,Very quiet ! 
If one of motor hall sensor is broken, controller still can work in Sine Wave Status.

* Second mode: Square wave Status – Motor with a little noise, < 60db, speed is about 8% faster than Sine Wave Status. If two of motor hall sensors are broken, controller can work in Square Wave Status. * Third mode: No hall Status - Motor with a little noise, < 60db, speed is about 8% faster than Sine Wave Status. If all of three hall sensors are broken, controller can work in No hall Status. If your motor's hall sensors are broken, don't need to replace hall sensors. Just use this controller that can recover your motor to work. If you don't know how to match motor wires to controller.  Just plug two blues together, controller into learning status and looking for correct working way. After 1-2 seconds, it can find correct working way,then disconnect these two blue wires' plugs. From now on,it always works with this kind of correct way.   

48V 52V 1000W electric hub motor controller with LCD screen

Posted by on December 7, 2022 Comments Off on 48V 52V 1000W electric hub motor controller with LCD screen

48V 52V 1000W electric hub motor controller runs very well. It gives the performance we hoped for.

Nevertheless, we are struggling connecting the regen brake. I would very much appreciate if you could help us to figure out how those wires are to be connected in order to have the engine giving us regen brake when cruising downhill.

Let me summarize:
I assume the yellow, green and red colors represent the colors of the knobs on the switch for each function right?
We have managed to have cruise and reverse working, but we do now know how to connect the Regen brake to the switch to enjoy electronic brake from the motor.

There are 4 cables from the controller for those 3 functions:
Black
Green
Blue
Yellow

When we connect green cable to blue or black the cruise works.
When we connect yellow cable to blue or black the reverse works.

But how do we have the Regen Brake working?
Can you please what color of the cable is for the regen? (is it blue?) and what other color from those 4 should it be connected with to make it work please? Thank you.
I truly would appreciate your help, we do not need reverse on a bike, but the regen would be very welcome.
Thanks a lot, in advance for your help.

How to use three button switch?
1.We cut off that yellow wire.It’s for reverse/backward.This function is very dangerous for e-bike. If for e-tricycle,hope this reverse function,just re-connect this yellow wire.
(We cut off yellow wire.. so no reverse/backwards function for e-bike. If install motor on tricycle, also need this reverse function,please re-connect this yellow wire. Reverse works)
This yellow button be left / middle,motor works forward. Be right side,motor works backward / reverse… (Cut off blue wire,No reverse function)

2.Green button is used to control cruise, while motor is running,also over some speed,example: over 1/3 max speed,at this time,press green button one time,then loose throttle,LCD display “C”,motor will works the same speed. Re-press this green button one time or press brake lever or turn throttle to max,motor will stop.

3.Red button be up,regen on. Be down,regen off. This regen will charge battery while press brake lever (We cut off red wire..)No recommend use this function.