DC motor controller for wide range of plug & play usage with flexible functions:

EV conversations, motor boats, trolleys, forklifts, robots and other industrial applications....

Model name: Crocodile FR5050

A robust DC motor driver capable of handling up to 100A. Designed to work with a 6-50 V power source, this controller is efficient and reliable for a variety of industrial applications. Its open enclosure ensures easy access to the circuitry, facilitating customization and monitoring. Crafted with quality in Hungary, the PWM controller is suited for managing loads up to 4 HP, providing consistent performance and protection for your motor systems.The Arduino compatibility makes it a versatile choice for enthusiasts and professionals alike who require precise control over their motor's speed in a wide range of projects.

Full datasheet: 

pwrcontroller.com/wp-content/uploads/2022/06/FR5050-1.2-complete.pdf

  • H-Bridge reversible direction controller
  • 4 operation modes: normal potentiometer or hall throttle (with 0.8-4.2 V output)/joystick mode/direct PWM input (0-95%)/ RC PWM receiver input 1,5 ms +/-1 ms 
  • Fully controllable via serial communication with more adjustable parameter on TX RX connector.
  • 4 quadrant operation Drive or regenerate in forward direction. And drive or regenerate in reverse direction.
  • High speed 32 bit Cortex processor.
  • 18 kHz switching frequency
  • Duty cycle: 0-100%
  • Overheating protection. 70°C/158°F
  • Universal 0-5 V speed control input. You don't have to use the potentiometer to control the speed. You can use PLC 
    output or any analog signal or PWM signal from uPC or RC receiver PWM signal.
  • Regenerative braking (you can brake the motor and get back all the kinetic energy into the battery)
    For the highest safety the regenerative braking never replaces the normal brake!
  • Adjustable ramp speed (acceleration limit). 0-40 seconds
  • Normal current limit is adjustable between 0-50 A
  • Peak current 100 A.
  • Universal supply voltage between 6-50 V DC.
  • Dimensions: 107 x 75 x 30 mm
  • For the maximum power you have to add extra heatsink to the aluminium block!
  • 150g

Important main difference between DC motor controllers:

There are many type of controllers the most piece is a Chinese simple and super economic controller. They are great until you put a large load to theirs output or use them close to the limited maximal parameters.

-Those controllers does not have proper supply filtering with many capacitors what is very important! Without supply capacitors the most of these controllers regularly burning down. 

-They does not have proper freewheel diode system against the motor inductive current! Because of this controllers can burn and go total destruction when the speed range is lower and load current is high.

-Most of them does not have any current limit or thermal limit protection which is very important. DC motors can consume 3-5x of the nominal current when at start or when acceleration is needed. Without current measurement and limitation the power stage burn down. A digital ultra fast current monitoring can protect the motor and the controller and make system reliable.

-Most of them are using mechanic relays to change the output direction. Changing the output direction with relays can be dangerous to the controller because any accidental reversal when the motor is still spinning can cause potential destruction of the power stage.

-Most of them has only one way to use with just a potentiometer or they do not have acceleration limit, no regeneration function, no serial communication or other special controlling mode and they are not flexible to implement them in an existing industrial system. 

These controllers has all in one functions and we keep developing them if any other request or market demand occurs.

How to use these controllers? 

With the current limit potentiometer you can very fine adjust the current what the motor can maximum consumes.

If you want you can set acceleration limits, voltage turn ON/OFF points, regeneration modes.

Also if you want you can use serial communication or PWM as a control mode. Functions are highly flexible. 

After this your motor and PWM driver is fully protected against the burning down or overload. 

Additional protection is the temperature protection. The controller measures the temperature of heat sink. If that exceeds the maximum the controller will shut down.

Do we have different kind of controllers?

Yes we have!

In different power levels. Only one way drive or H-bridge reversible version.
Normal or low ultra high efficiency drives.
Some of them available in different versions only board, with heat sink or is a plastic /aluminium enclosure. 
Please check our store here or the available version list below: 

10-50V 70A/50A DC motor controller:

6-50V 100A/50A DC motor controller (H-bridge reversible output):

6-50V 150A/100A DC motor controller (H-bridge reversible output):

6-50V 200A/100A DC motor controller:

6-50V 300A/200A DC motor controller: 

6-50V 300A/200A DC motor controller (H-bridge reversible output): 

6-50V 600A/400A DC motor controller: 

10-100V 70A/50A DC motor controller: 

16-100V 70A/50A DC motor controller (H-bridge reversible output): 

16-100V 200A/100A DC motor controller:

16-100V 500A/350A DC motor controller: 

16-100V 500A/350A DC motor controller (H-bridge reversible output):  

16-200V 45A/30A DC motor controller (H-bridge reversible output):  

16-200V 140A/70A DC motor controller: 

16-200V 300A/200A DC motor controller:  

16-200V 300A/200A DC motor controller (H-bridge reversible output):  

Does it come with warranty what if you need help?

We test each controllers before shipping. Of course random failure or mistake still can happen. If there is a problem it has 6 months warranty. If you have problem or just a question please contact first.
For installation you can find many useful informations in the detailed datasheets which is available in the ad there is a download link in the description.

About Us:

We are an engineer company in Hungary design and selling power electronic sincs more than 10 years.
Our area of expertise is Power conversations, industrial controlling, embedded MCU solutions with Cortex ARM processors.
We have many different electronic designs. We can modify and custom design on request of your needs.
We sell small and medium quantities.
If you are interested please fell free to contact with us.