Search found 442 matches
- Tue Apr 13, 2004 2:39 pm
- Forum: Robotics
- Topic: root locus diagram
- Replies: 10
- Views: 8176
Re: root locus diagram
Are you just curious or do you need to use it for something?<p>Root locus plot shows the poles and zeroes of the transfer function of a system. It's a method to analyze system stability & performance and can be used to design a compensator (system controller) that does, um, what you want it to d...
- Tue Apr 13, 2004 2:38 pm
- Forum: Robotics
- Topic: root locus diagram
- Replies: 10
- Views: 8176
Re: root locus diagram
Are you just curious or do you need to use it for something1 ? Root locus plot shows the poles and zeroes of the transfer function of a system. It's a method to analyze system stability & performance and can be used to design a compensator (system controller) that does, um, what you want it to d...
- Fri Apr 02, 2004 10:59 am
- Forum: Robotics
- Topic: dedicated motor controller protocols
- Replies: 8
- Views: 6294
Re: dedicated motor controller protocols
There used to be something called Serpos that was popular a few years back for networking motor controllers. Google may help here.<p>I think you'll find that unless you need to be interoperable with some legacy system, you're best off designing your own protocol and letting it evolve as your needs c...
- Tue Mar 02, 2004 10:30 am
- Forum: General Discussion
- Topic: Using MOSFET with MCU for switching?
- Replies: 17
- Views: 7014
Re: Using MOSFET with MCU for switching?
I second what Stephen said. However, the outputs of most modern microcontrollers will be spec'd at CMOS levels, so a 5V powered MCU will probably put out close enough to 5V to drive a logic level FET. If not, buffers can be added. Look into the IRLxxx series of HEXFETs from International Rectifier. ...
- Tue Feb 10, 2004 10:51 am
- Forum: General Discussion
- Topic: 1v to 5v output
- Replies: 10
- Views: 4825
Re: 1v to 5v output
What's the application? Like toejam said, how much current do you need? The simplest thing that comes to mind is a 1k potentiometer with one leg tied to the +5 output of a 7805 regulator and the other leg tied to a 1V (or closest value) zener diode. Using an LED instead of the zener will give you ab...
- Tue Feb 10, 2004 10:34 am
- Forum: General Discussion
- Topic: Wireless trigger
- Replies: 14
- Views: 6513
Re: Wireless trigger
The simplest way is probably to buy a cheap radio controlled car and use its receiver to control the sound chip. I've seen toys like this for less than $15 and you'd have the result quickly. Radio Shack used to sell sound chips; if they don't still carry them, DigiKey (www.digikey.com) will.
- Thu Feb 05, 2004 5:11 am
- Forum: General Discussion
- Topic: Amazing led on a hard drive
- Replies: 14
- Views: 6190
Re: Amazing led on a hard drive
It's probably an LED with integrated resistor, they're commonly used when you need a simple indicator powered directly off 5 or 12V.<p> <blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr>Originally posted by keymaker: I was burning up hard drives wi...