Questions tagged [l298]

Anything related to the L298 integrated circuit. The L298 is a high voltage, high current dual full-bridge driver designed to accept standard TTL logic levels and drive inductive loads such as relays, solenoids, DC and stepping motors.

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Two L298N for two stepper motors

I have two stepper motors (ripped from old scanners) and two L298N ICs. I have to connect these motors to the STM32 MCU, and I'm going to use this scheme: I want to make one board for two motors just ...
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L298 dual H-Bridge RDS(on)

I am working on a project that mandates the use of a particular Arduino motor driver shield, which makes use of an L298 dual H-bridge (datasheet here) I need to perform some power calculations in ...
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Removing jumpers from an L298N Dual H-Bridge

I've got an L298N dual H-bridge which I'm using to control two DC motors with an arduino. I want to be able to control the speed of the two motors using PWM. My understanding is that I need to ...
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L298 IC motor driver - how to wire and use correctly? [duplicate]

EDITED. I found that my supply of 3V was insufficient as there are voltage drops across the transistors. I replaced the 3V supply with 4.5V and the motor ran fine - although now my 3V motor has 2.5V ...
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Having trouble with L298N H-Bridge IC

I cannot understand how this IC works from the block diagram given in the datasheet. I understand the concept of an H-bridge, but cannot figure how this one operates. I drew on the schematic to ...
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Current limiting on a stepper controlled by L293D on an arduino board

I currently have a bipolar stepper motor connected to a l298n, with one resistor to each coil. The problem is it draws a lot of power when there is no need to, and limits the maximal power of the ...
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24V H-Bridge DC motor, why voltage drop to 3v if motor connected

I want to drive a DC motor using an L298N H-Bridge Driver IC. I'm using the schematic from this website: The motor is 24 V with about 7.5 ohm impedance (thus, it draws about 3.2 A). I'm using a 24V ...
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PWM vs. PPL in L298 motor controller

I am currently developing a small robot project. The motor driver I have uses a L298 motor driver IC. It supports two methods of control, PWM and PLL and it is configurable with on-board jumpers on my ...
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Arduino Motor Shield R3 Current sensing

I am trying to use current sensing functionality of Arduino Motor Shield R3, the shield is based on L289. The values that I read seem to be very noisy. I am using Arduino UNO A0 analogRead() function ...
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L298N shield gives relatively low ouput voltage and current

I am using a L298N shield together with an Arduino to drive a 42mm 2 phases bipolar stepper motor. The driving voltage for the motor is 12V and the logic voltage for Arduino and the L298N shield is 5V....
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L298 Flyback diode connects to ground

On the L298 datasheet (http://www.sparkfun.com/datasheets/Robotics/L298_H_Bridge.pdf), the Bidirectional motor control application example (Fig 6) shows that the need to be two diodes connecting the ...
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L298 overheating issue

I'm trying to build a motor driver which can supply ~3A per motor. Only cheap IC I could get my hands on was L298, so I decided to parallel its channels. But for some reason that I can't understand (I'...
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L298 output voltage is too low

I'm trying to use an L298N and an Arduino UNO R3 to drive a bipolar stepper motor. To simplify things, I'm just trying to get a 12v output from either output-1 or output-2 of the l298 (then I can ...
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What components do I need to build a motor controller from the L298?

I'm thinking of buying a pair of L298Ns, to control a pair of 1.6A motors. I'd like to control each motor with a signal PWM wire and a direction wire. However, I've hit a couple of problems. It is ...
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How many control pins needed for L298N H-Bridge?

I have a simple robot with two DC motors. Using the L298N Dual H-Bridge, what's the minimum number of control pins I can use to give me forward, back and turn? Here's a typical setup for the chip. It ...

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