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- Newsgroups: rec.models.rc
- Path: sparky!uunet!usc!howland.reston.ans.net!zaphod.mps.ohio-state.edu!malgudi.oar.net!news.uakron.edu!VM1.CC.UAKRON.EDU!D2KAK
- From: D2KAK@VM1.CC.UAKRON.EDU
- Subject: Re: Do most servos input a "pulse width modulated" sig?
- Message-ID: <16B5DACFE.D2KAK@VM1.CC.UAKRON.EDU>
- Sender: news@news.uakron.edu
- Organization: The University of Akron
- Date: Thu, 21 Jan 1993 17:18:06 GMT
- Lines: 17
-
- Almost all servos now on the market are three wire types using a
- positive and negative (+5volts & Ground) and signal wires.
- The servo will respond to a Positive on pulse between .9 and 1.9 msec
- in duration. The off time is usually not critical as long as its around
- 2.5 msec or so. The signal will look something like this:
- +5 Volt ___ ___
- 0 Volt ________| |_______| |_________
- I hope this
- I hope this diagram shows up all right!
- The servo will normally center at about 1.5 msec for Futaba and J.R.
- and 1.4 msec for older Kraft radios. (Kraft Sport Series centered at
- 1.9 msec). How many of you remember Kraft radios?
-
- Hope this helps.
- Kraig Krumm (AMA59622)
- The University of Akron
- Electronic Systems
-