[TriEmbed] ABC's of Electronics (V, I, Z)

[Dwight Morgan]

I would like to hear both of these talks as well as others. Is the robotics meeting link on the TriEmbed site?

Sent from my iPhone

> On Jun 9, 2015, at 3:57 PM, Rodney Radford via TriEmbed <triembed at triembed.org> wrote:
> 
> I have been thinking of giving a talk on motor types and motor control at a future robotics meeting (we meet in the same room on the 1st Monday of the month).  
> 
> I would cover:
> 
>     * Basic types of motors
>           + R/C servo (both positional and continuous)
>           + DC brushed
>           + DC brushless (only to describe how they work, but not delve into detail as this is a full talk by itself)
> 
>      * Basic control circuits:
>            + Simple R/C servo (varying pulse width to control position)
>            + Simple on/off of a DC brushed motor (no change direction)
>            + Using PWM to control speed (open loop)
>            + Using a relay to change motor direction
>            + Replacing the relay with an H-bridge
> 
> That should be enough for one session...  but the plan is to lead up to the next session where I want to get into closed-loop motor speed and position control:
> 
>     * Sensing motor speed/direction
>          + analog feedback (generator)
>          + optical break or Hall effect sensors
>          + quadrature encoders, quadrature + home sensors
>     * Basic types of motor control algorithms
>          + on until set point, then off
>          + proportional (the P of PID)
>          + PI (add the integral term)
>          + PD (add the derivative term)
>          + PID (all together)
>      * More complicated controls
>          + PIDs within PIDs (oh my)
>          + changing PID parameters on the fly
> 
> The plan is to show each of the P, PI, PD, and PID graphically, which is what I am working on now - a motor control board that implements PID but also allows me to graph the motor response curve so we can see what happens as we change (or eliminate/add) each parameter.
> 
> This talk may be of interest to the TriEmbed group - if so, you could either attend the robotics meeting, or I could give it again.
> 
> I could do the first talk now, but I am about 2-3 months away from having what I want for the second talk.
> 
> Is there any interest?
> 
> 
>> On Tue, Jun 9, 2015 at 2:44 PM, Shane Trent via TriEmbed <triembed at triembed.org> wrote:
>> Now that is an art!
>> 
>> Sent from my iPhone
>> 
>> On Jun 9, 2015, at 1:08 PM, Craig Cook via TriEmbed <triembed at triembed.org> wrote:
>> 
>> >> I would be interested in giving a mini-talk on electronics terminology.
>> >> After all, you can't spell Geek without "EE."  :-)
>> >>
>> >> Here are some possibilities, but I need your input...
>> >
>> > How about "how to read a datasheet?"
>> >
>> > Sounds like a great talk
>> >
>> > Thanks
>> >
>> >
>> > Craig
>> >
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