 | | Re: Burning hot motor driver chips.
|
|
Anthony can correct me if I'm wrong, but generally the phrase "converting an R/C car" means, taking a Radio Controlled model car, modifying and/or removing the radio receiver and motor driver circuitry, and replacing it with a computer. The generic (...) (27 years ago, 1-Oct-97, to lugnet.robotics.handyboard)
|
| |
| | Burning hot motor driver chips.
|
|
After not doing anything with my HB for a few months, I decided to buy a cheap RC car and use it as a platform. Anyway, I get a car that takes 6 AA batteries because I figure that the main motor is probably 9v (maybe that was a faulty assumption). (...) (27 years ago, 9-Nov-97, to lugnet.robotics.handyboard)
|
| |
| | Re: Burning hot motor driver chips.
|
|
Anthony, (...) Yes it sounds like it. (...) It does. The L293D still works after it cools off, doesn't it? (...) I suspect you are going to need more than just two piggy backed L293D. (...) You might have a look at Ben Wirz website, he sells various (...) (27 years ago, 9-Nov-97, to lugnet.robotics.handyboard)
|
| |
| | Re: Burning hot motor driver chips.
|
|
Hello, RC car motors pull a lot of current, from 2A to 8A. The L293D chip goes up to 1A peak (for some miliseconds) before it shuts down. I suggest bypassing the L293D chips and using something like the LMD18200. (URL) Good luck, Marco A.A. de (...) (27 years ago, 10-Nov-97, to lugnet.robotics.handyboard)
|
| |
| | Re: Burning hot motor driver chips.
|
|
Anthony, As you've no doubt heard, RC motors take much more current than the Handyboard can supply. To control RC motors your only choice is to create a separate H-bridge to drive the motors. You can do this fairly inexpensively with power (...) (27 years ago, 10-Nov-97, to lugnet.robotics.handyboard)
|
| |
| | Re: Burning hot motor driver chips.
|
|
What does "RC" stand for anyway? I don't think it's Radio Control...is it? ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of Mechanical Engineering The Cooper Union for the (...) (27 years ago, 10-Nov-97, to lugnet.robotics.handyboard)
|
| |
| | Re: Burning hot motor driver chips.
|
|
(...) I believe that's correct: Radio Controlled devices, RC devices. Marco A.A. de Oliveira assfalk@eece.unm.edu ---...--- Autonom. Robotics (SMART) Project UNM/NASA ACE Center ---...--- (URL) ---...--- (...) (27 years ago, 11-Nov-97, to lugnet.robotics.handyboard)
|
| |
| | Re: Burning hot motor driver chips.
|
|
So am I correct to assume that an RC motor had a built in RF reciever? ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of Mechanical Engineering The Cooper Union for the (...) (27 years ago, 11-Nov-97, to lugnet.robotics.handyboard)
|
| |
| | Re: Burning hot motor driver chips.
|
|
(...) Well, that's partially correct. The RC cars usually have a speed control/ steering module that incorporates the RF receiver. This module supplies PWM signals to the drive motor and also controls a steering servomotor. Marco A.A. de Oliveira (...) (27 years ago, 11-Nov-97, to lugnet.robotics.handyboard)
|
| |
| | Re: Burning hot motor driver chips.
|
|
So I guess RC servos/motors are regular servo motors and DC motors that have been stripped from RC cars? Are they any diferent from regular servo/DC motors? If not, then why lable them as "RC"? Since the RF component isn't there anymore... :-/ (...) (27 years ago, 11-Nov-97, to lugnet.robotics.handyboard)
|
