[NSRCA-discussion] Servo Signals

[Jay Marshall]

Because they use a digital processor, rather than an analog processor, in
the electronics. This allows easy tailoring of the control system parameters
even to the extent of different performing servos to have the same hardware
inside.

 

Is this too much information?

 

Jay Marshall 

-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Vicente
"Vince" Bortone
Sent: Tuesday, June 23, 2009 8:03 AM
To: General pattern discussion
Subject: Re: [NSRCA-discussion] Servo Signals

 

Jim,

 

I don't know anything about electronics.  I am sure that the following
question if very simple for you:  Why the digital servos are called digital?

 

Thanks,

 

Vicente "Vince" Bortone

 


----- Original Message -----
From: "James Oddino" <joddino at socal.rr.com>
To: "General pattern discussion" <nsrca-discussion at lists.nsrca.org>
Sent: Tuesday, June 23, 2009 12:12:23 AM GMT -06:00 US/Canada Central
Subject: Re: [NSRCA-discussion] Servo Signals

What do they say in the Capital 1 commercials, not literally?  Transmitters
communicate with receivers digitally in PCM mode and analog in PPM mode.
Receivers communicate with servos analogy (?) with PWM.  The servos are
analog.

 

Jim O

 

 

On Jun 20, 2009, at 7:23 PM, Bob Richards wrote:

 


--- On Sat, 6/20/09, Richard Lewis <humptybump at sbcglobal.net> wrote:

 

And....Interestingly enough.....It does not matter what kind of fancy
whopping digital super latest and greatest TX/RX system you have, the
signals to the servos are still firmly rooted in good old 1970's
technology....:)  And...Your super whopper digital brushless whatever servo
still has an analog pot for position feedback....:)

 

I for one am eager to see a leap in servo technology.....Bidirectional
serial comms to the servos with the servo being able to feed back torque,
amps, position, rate, etc.....and encoder/resolver position feedback in the
servos to really catch up with the world we live in......

 

Amen to that. We have digital servos and digital receivers, yet they talk to
each other via an analog method and use analog feedback.

 

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