Author Topic: Lock-Antiphase PWM  (Read 5148 times)

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Offline hendrachubbyTopic starter

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Lock-Antiphase PWM
« on: March 14, 2009, 11:00:50 AM »
Hello,

Any one can help me to use lock-antiphase to control dc motor ? It seems that this method has advantage to brake the motor.

I found in this page:
http://www.modularcircuits.com/h-bridge_secrets2.htm

Offline Soeren

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Re: Lock-Antiphase PWM
« Reply #1 on: March 14, 2009, 03:33:45 PM »
Hi,

Any one can help me to use lock-antiphase to control dc motor ?
Well, you don't mention in what way you need help with it, but it's not much different from any other H-bridge application, except for the logic control. Besides, you can implement several current steering strategies in the same H-bridge.


It seems that this method has advantage to brake the motor.
Better to power brake IMO, since the method you wanna use is outrageous wastefull at anything but full speed (in which the few advantages it might have for slightly obscure applications is void and null anyway).
Don't let that be your sole strategy, or master strategy for that matter, it will do you no good unless you need hyper precision of a level which is way beyond amateur robotics.

Anyhow, don't take my word for it. Test all possible strategies and find out for yourself what you wanna use - that way you'll learn far more than just getting answers from other people - experience is never given, it's (hard) earned.


What exactly is your question? (I don't think you're asking for a simple yes/no answer here, even if that's what you did).
Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

 

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