Hello. I am building a smart car project and I am using a L298 as motor driver. The problem is that I don t have enough power in motors to move the car on the ground.
I have used 4 batteries (6v in total).
If I connect the motor directly to one battery I have enough power.
I have read that L298 is not a great option for a smart car but I don t have enough time to order another driver. If I use more batteries the chances to increase the power grows or not?
Can I use converters or others module between l298 and motor to increase the power?
I have 2 L298 drivers. Could I use them in parallel to increase the power?
If I can t find a solution could you suggest another driver which is not too expensive?
I am using 2 cheap motors and a chassis from a RC car.
Thanks
Welcome to the world of hobby engineering. Where specifications are important. In order to give you informed advice we need to know more about the motors. "Cheap" is not a spec. Rated voltage and stall current are. To choose a proper driver, those specs are, at a minimum, required. I agree, wholeheartedly, that the L298 is not a good choice, but without more information, can't recommend anything specific. Pololu has a great selection of DC motor drivers.
Those specs are also important in choosing a power supply.
The L298 and it's smaller sibbling the L293 'loose' about 2-4volt depending on motor current draw,
so your motor will get ~3volt less than the battery supply.
Easy solution is to compensate for that by using a ~9volt supply for a 6volt motor.
Add two more AA batteries in series with the four you have now.
Note that the two extra batteries are just there to heat up that ancient chip.
Next time buy a more modern mosfet-based motor driver.
Leo..