Am building a Dcc model train controller using a L298 as the output stage which feeds its output onto the rails. The pulses are received by decoders in the locos, the input to which is typically a bridge recitifer.
Because there is no direct motor connection to the L298 is it still necessary to fit the Flyback diodes ?
Have seen several working designs, some fitted with these diodes, some without ...?
Diodes are a good idea, but since there is a lot of electronics between the DCC powered track and any motor, I see no harm in leaving them out. It would be good to have them if there are any other loads powered by the track.
Diodes are a good idea, but since there is a lot of electronics between the DCC powered track and any motor, I see no harm in leaving them out. It would be good to have them if there are any other loads powered by the track.The DCC model train system is not a stepper motor. Microstepping would certainly screw it up.
so use a DC PWM version of the chip, the fact remains that the L298 chip is an archaic piece of junk. ... sorry I just equated the two since they are normally used together