Which causes the motor to stop instantly as the motor’s terminals are shorted, or to let the motor ‘free rush’ to a stop (coasts), as the motor is viably separated from the circuit. However, it can also be utilized to ‘brake’ the motor. The H-bridge configuration is commonly used to switch the direction of the motor. This causes anticlockwise rotation of the motor. When S2 and S3 are ON and S1 and S4 are OFF, the right side of the motor terminal is more +ve than the left terminal. This causes clockwise rotation of the motor. When S1 and S4 are ON and S2 and S3 are OFF, the left side of the motor terminal is more +ve than the other terminal. Change in the direction of rotation of motor using h-bridge The direction of rotation of the motor depends upon the switch positions. An H-bridge schematic looks like this: H-bridge circuit Diagram relays, solenoids, motors (DC and stepping motor), etc. It can also be used to control inductive loads e.g.
It is a high current dual full H-bridge driver that is constructed to receive standard TTL logic levels. The L298N motor driver is based on the H-bridge configuration (an H-bridge is a simple circuit that lets us control a DC motor to go backward or forward.), which is useful in controlling the direction of rotation of a DC motor. L298N Motor Driver Module details: L298N motor driver Module And to supply the voltage/current required to operate the motor, an external supply is connected to the motor driver module. We bridge the gap between the Arduino and motor by introducing a motor driver between them. To solve this problem the use of a motor driver is essential. Hence the output of Arduino is not enough to power up the motors. Also, the output current limit of Arduino is relatively very low. But a decent DC motor needs at least 5V or 12V. For instance, the Arduino or PIC microcontroller can output a maximum voltage of 5V or 3.3V. Why do we need a motor driver module?Īll microcontrollers operate on low-level voltage/current signals, unlike motors. The IC alone can control the DC motor but using the module makes the interfacing with Arduino easy. The motor driver module consists of a motor driver IC, which is the heart of the module. To put it in simple words, you can control the direction of DC motors by giving appropriate logic to the motor driver module. This input logic controls the direction of DC motors connected to the driver.
A motor driver module takes the low voltage input from a controller like Arduino. It is commonly used in autonomous robots and RC cars (L2938N and L293D are the most regularly utilized motor driver chips). What is a Motor Driver Module? Motor DriversĪ motor driver module is a simple circuit used for controlling a DC motor.
But first, we must answer some basic questions like what is a motor driver, why is it used in a circuit, and what is an H-bridge configuration, etc. There are yet no reviews for this product.In this article, you will learn about the L298N motor driver module in detail. Visit forum for Online Discussion on this product The driver can be used with different heat sinks for better heat dissipation and thus increase the load capacity with the driver module.įor more application refer to L298 Motor driver datasheet īy filling the tracks of PCB with solder, improves the current capacity of the motor driver module The below Configuration can be used for different load capacity. Operating PWM frequency range up to 20 KHz.By connecting two H Bridges in parallel it can drive DC motor with current capacity of 4 Amps.Bidirectional control of 2 DC motors up to 2 amps each.It can drive bipolar stepper motor up to 2 Amps.Operating supply voltage up to 46 volts.The device is available in 15- lead Multi watt package. It can be used in conjunction with stepper motor controller for driving one/two phase stepper motor. Two H bridges of L298 can be connected in parallel to increase its current capacity to 4 Amp. It can drive two DC motors or one stepper motors, relays, solenoids, etc. The L298 is a Dual Full Bridge driver that can drive up to 2Amps per bridge with supply voltage up to 46V. The pins of L298 motor driver IC are connected to 1x15 10mm berg strip for easy access to the driver IC’s pin functions. L298 motor driver is mounted on a high quality, dual layer PCB for more durability. The L298 motor driver is available in kit form for providing user with ease and user friendly interface for embedded application.