Author Topic: pros and cons of moters and servos  (Read 3523 times)

0 Members and 1 Guest are viewing this topic.

Offline JedTopic starter

  • Jr. Member
  • **
  • Posts: 25
  • Helpful? 0
pros and cons of moters and servos
« on: August 05, 2009, 01:43:59 PM »
what are the differences of moters and servos i am using the Axon
« Last Edit: August 05, 2009, 03:03:12 PM by Jed »

Offline SmAsH

  • Supreme Robot
  • *****
  • Posts: 3,959
  • Helpful? 75
  • SoR's Locale Electronics Nut.
Re: pros and cons of moters and servos
« Reply #1 on: August 05, 2009, 03:07:10 PM »
motors will require a h-bridge to drive them as connecting them to the axon directly will fry the pin.
servos are a dc motor, a gearbox and a h-bridge all in one nice, neat package... but they need to be modified to rotate continuously... there are hundreds of topics in the forum about this, search it.
Howdy

Offline Soeren

  • Supreme Robot
  • *****
  • Posts: 4,672
  • Helpful? 227
  • Mind Reading: 0.0
Re: pros and cons of moters and servos
« Reply #2 on: August 05, 2009, 06:08:42 PM »
Hi,

motors will require a h-bridge
Nope, they'll require some kind of driver, of which an H-bridge is just one example.
(Capital "H" in H-bridge please, that's the figure that gave the circuit its name - an h-bridge must be an H-bridge where the rightmost top transistor has gone permanently O.C. - which, by incident, is pretty rare, considering that the typical failure mode for a transistor is shorted).
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

paulstreats

  • Guest
Re: pros and cons of moters and servos
« Reply #3 on: August 05, 2009, 06:24:07 PM »
Quote
an h-bridge must be an H-bridge where the rightmost top transistor has gone permanently O.C. - which, by incident, is pretty rare, considering that the typical failure mode for a transistor is shorted

he he..

To answer the original question...

A motor is a motor.

A Servo is a device that contains a motor along with a closed loop system, driver circuitry, gearing, and 1 wire communications.

To put it short:
A servo is an all in 1 package that has restricted movement unless you are willing to modify it.

A motor is 1 single part of a drive system.

 

SMF spam blocked by CleanTalk