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Re: Driving an H bridge

Greg Doyle — Wed, 10 Feb 2010 00:29:25 GMT

I'm going to build a line follower. Starting from scratch everything's a mystery, so if some of the questions appear silly it's because I've been thinking in

Re: Tryclops2

Pete Bergstrom — Tue, 09 Feb 2010 16:26:02 GMT

I enjoyed watching Rudy Kouhoupt's video: http://smartflix.com/store/video/52/Fundamentals-of-Machine-Lathe-Operation and I plan to rent some of the other

Re: Tryclops2

Martin, Jeff — Tue, 09 Feb 2010 15:44:41 GMT

Brynn, Can I get a copy of your machining videos? Jeff M ________________________________ From: tcrobots@yahoogroups.com [mailto:tcrobots@yahoogroups.com] On

Re: Driving an H bridge

Alan Kilian — Tue, 09 Feb 2010 15:31:18 GMT

... It's more common to use a PWM signal nowadays. In the olden-days it was more common to use an analog signal. There are applications that still use analog

Re: Tryclops2

Brynn D. Rogers — Tue, 09 Feb 2010 06:21:45 GMT

On Tue, 09 Feb 2010 00:06:00 -0600 Jeff Sampson wrote: > Brynn D. Rogers wrote: >> >> ... clamping kit, a set of reamers, angle block >>

Re: Tryclops2

Jeff Sampson — Tue, 09 Feb 2010 06:06:08 GMT

... You really have collected alot of stuff... ... Who is Rudy? Rudy Boschwitz? ... Have you figured out how to control the position of your brushless motors?

Digital vs. Analog Servo Control

Jeff Sampson — Tue, 09 Feb 2010 05:58:56 GMT

It is actually quite interesting to examine control techinques. There are lots of examples in the real world that may or may not be obvious. One that comes to

Re: Tryclops2

Brynn D. Rogers — Tue, 09 Feb 2010 05:42:36 GMT

I have center drills , collets, 2 and 4 flute endmills, vise (3", I should have gotten a 4") clamping kit, a set of reamers, angle block set, boring bar set,

Re: Driving an H bridge

Jeff Sampson — Tue, 09 Feb 2010 05:23:20 GMT

It is hard to find an example since everybody wants to show everything as opamps these days. But here is an example for doubting Thomas (Oh, I mean doubting

Re: Driving an H bridge

Alan Kilian — Tue, 09 Feb 2010 04:44:15 GMT

Yeah, it's the "H" part that I was confused about. I've driven motors with a class B (Push-Pull) amplifier you describe, but I've never heard of that being

Re: Driving an H bridge

Jeff Sampson — Tue, 09 Feb 2010 04:38:07 GMT

My movie is done. Actually I was watching the last episode of Defying Gravity from Netflix... It is more common these days to use a digital "h-bridge" since it

Re: Driving an H bridge

Jeff Sampson — Tue, 09 Feb 2010 03:52:09 GMT

Well... You can run a completely analog servo system or completely digital servo system. Or a mix of the two. In the digital world they simply refer to an

Re: Driving an H bridge

Alan Kilian — Tue, 09 Feb 2010 02:47:16 GMT

... I've never heard of driving an H-Bridge with an analog signal. How's that work? Transistors are all in linear-mode? -Alan

Re: Driving an H bridge

bill — Tue, 09 Feb 2010 02:27:58 GMT

... At low power levels you can use analog. This is used with small motors. At higher power leaves PWM since the on/off switching combined with the inductance

Driving an H bridge

Greg — Tue, 09 Feb 2010 02:21:42 GMT

Is it more common to use PWM to drive an H bridge or to use an analog signal?