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Dc Motor Driver

Dc Motor Driver info

DC motor drivers are necessary like all motor drivers because of the inability of microcontrollers or other processors to provide high voltages and currents enough to drive electrically heavy loads such as motors. There are two types of DC motors: brushed and brushless. These motors need different driving mechanisms because of their commutators. In brushed DC motors commutation is done by the brush in the motor, so driving these motors are relatively easy. In brushless DC motors there is not a brush to commutate the current, so this job has to be done electrically. Therefore driving brushless DC motors are a bit complex compared to driving brushed DC motors.

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Driving brushed DC motors is straightforward in principle but not quite so simple in practice. For the simplest small applications you can run the motor directly from a power source and use a potentiometer to control the speed and a switch to reverse its direction. If the motor is to be part of an embedded application you need a driver IC and some control logic. Brushed DC motor drivers consist of circuits called H-bridges. H-bridges are H-shaped circuits that are used to drive brushed DC motors bidirectional.

Brushless DC motors need sophisticated electronic control circuitry as well as some way to continuously determine the position of the rotor. The position of the rotor can be determined either by a Hall effect sensor or by measuring changes in the back EMF at each of the armature coils as the motor rotates. Whereas the speed of brushed DC motors is determined by the applied voltage, the speed of brushless DC motors is determined by the frequency at which it is switched. The motors are driven by PWM pulses.

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Features:It can be used in the control part of 12-40V DC motors. It can supply a maximum of..
$7.00
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$30.00
You can drive your brushless motors with the 40A Electronic Speed Control (Motor Driver) card. &nbs..
$12.00
Easy-to-use motor driver. Supports motors that draw up to 40 amps from a maximum of 10-55V. It is v..
$55.00
Easy-to-use motor driver. It supports motors that draw up to 5 amp current from 0 to 60v maximum. I..
$15.00
The DRV2605 from TI is a fancy little motor driver. Rather than controlling a stepper motor or DC mo..
$10.00
The BTS7960B motor driver card is a high power and high current driver card for sumo and land robots..
$20.00
High-current switching is the driver module for IRF520 MOSFETs that you can use just like a relay ca..
$1.50
You can easily run your program without having to install an extra circuit when driving motor driver..
$6.00
This mini module with integrated L9110 motor driver on its own is a beautifully designed module that..
$6.50
Ideal for motorized drive modules, battery powered smart cars, toy cars, robots. The supply voltage ..
$3.00
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$7.00
Product description:With this controller, you can easily control the DC motor speed between 6..
$6.00
Baby Orangutan B-328 Robot Controller is a complete control solution for small robots, all packed in..
$19.00
TB6612FNG Dual Motor Driver is a motor driver breakout board to drive two bidirectional DC motors or..
$4.50
L9110S Motor Driver is a compact board that can be used to drive very small robots. This tiny module..
$1.80
L298N Dual H Bridge Motor Driver is a motor controller breakout board which is typically used for co..
$3.00
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$20.00
Pololu Simple High-Power Motor Controller 24v23 is a versatile, general-purpose motor controller for..
$40.00
Pololu High-Power Motor Driver 18v15 is a discrete MOSFET H-bridge designed to drive large DC brushe..
$30.00