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PID

Sci.Electronics.Basics is a worldwide Usenet news group that is used to discuss basic electronics questions.

We found 21 threads matching "pid"

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The most relevant threads are listed first

What for the "D" in a PID control loop?

George Herold - 2010-02-19 13:41:00
I=92ve built several PID control loops, mostly for temperature control, but sometimes for other things. I=92ve always used the all three PID parameters. I use to think that the D term was there to help reduce the ringing. (As stated in the wiki PID article.) And was needed to get critical...What for the

Scr firing

Robotnik - 2007-03-02 05:41:00
Hello all, We have been trying to build a prototype of a single-phase power controller.The amount of power to be output is controlled by a PID algorithm. The PID algorithm resides in the external flash associated with a processor. The output from PWM module of the processor controls the firin...Scr firing

Pic Question - digital output on

Dave - 2007-01-16 11:30:00
For the first time I am working on a USB project using a PIC18F4550 chip. I have written firmware for the chip that was tested and works on a development board... now I put together a circuit of my own and burned by firmware onto my own chip, and the whole thing enumerates when plugged into the...Pic Question - digital output on

Where to buy one 18 V cordless drill motor? (USA)

John Doe - 2008-10-01 19:39:00
Any good online merchants that sell the equivalent of cordless drill motors from 14.4 to 36 volts? Any online stores that sell similarly powerful DC motors in quantities of one? Partly out of curiosity. How much would you pay if you had to buy a motor separately and needed a motor like the...Where to buy one 18 V cordless drill motor? (USA)

Re: how to control the speed of dc shunt motor??

Tim Wescott - 2008-04-23 12:01:00
On Wed, 23 Apr 2008 07:58:36 -0700, khalika89 wrote: > hullo buddy out there,i've a prob because i dont know how to control the > speed of dc shunt and series motor,can anybody help me?? Control the voltage going to the motor, of course. Shunt motors are difficult because their speed is ...Re: how to control the speed of dc shunt motor??

New Resource Site on Instrumentation

2007-08-18 05:28:00
New Resource Site on Instrumentation http://www.instrumentationworld.com Instrumentation World provides information to engineers, professionals and everybody who is interested in Instrumentation, Process automation and control. We try to cover all topics related to Process Automation and ...New Resource Site on Instrumentation

New Web Site on Instrumentation Instroduced

2007-08-13 09:05:00
Instrumentation World provides information to engineers, professionals and everybody who is interested in Instrumentation, Process automation and control. We try to cover all topics related to Process Automation and Control, like Distributed Control Systems DCS, Programmable Logic Controler ...New Web Site on Instrumentation Instroduced

Re: ATTiny13 voltage and current ratings

2007-07-03 23:51:00
On Jul 3, 6:44 pm, Tim Wescott wrote: ... > > Say... you wrote "Applied Control Theory for Embedded Systems", eh? > > Are Ziegler-Nichols and Cohen-Coon covered in your text? > > No, but if I ever get a chance to do some addenda, Z-N is on my list of > things to add, and now I'm go...Re: ATTiny13 voltage and current ratings

Re: Question --- 12v to 240v inverter starting high surge startup

Ross Herbert - 2007-12-24 22:30:00
On Mon, 24 Dec 2007 09:20:14 +0800, "Norman Webb" wrote: > I have a 600W modified sine wave inverter and am trying to run a 70w bar > fridge. > > It almost starts the fridge but overloads. > I have been told that a 600w pure sinewave inverter would probably do the > job but they ar...Re: Question --- 12v to 240v inverter starting high surge startup

Re: Current Transformers

RogerN - 2009-09-26 15:00:00
"Rich Grise" wrote in message news:pan.2009.09.24.17.22.37.356060@example.net... > On Wed, 23 Sep 2009 19:59:10 -0500, RogerN wrote: > > If I could use a current sensor, and shut off the heater whenever the > > line > > current is above 15A, and not turn back on until current is ...Re: Current Transformers

Re: Shower power control

John Popelish - 2007-02-25 23:32:00
gethostbyname@gmail.com wrote: > I am looking for a way to control the power (the water temperature if > you prefer so) of my shower. > > Specifications: > Tension: 220V > Resistance: 11 ohms > Nominal current: 20A > > I found solutions using Google but they are some problems on ...Re: Shower power control

Re: PWM vs Analog Output

pLaNiX - 2006-12-24 12:35:00
Ok i got it. i have some coding/compiler difficulties using multiple pwm outputs (sending the PID output to a 8 bit port seemed a bit more easy to me :)) but the using PWM output (CCP1 CCP2A) is the best sollution as you said. Thanks for *all* replies you cleared my mind. :) John Popelish ...Re: PWM vs Analog Output

Re: Understanding electrical contacts - inkjet cartridges

species8350 - 2009-01-13 08:06:00
On Jan 12, 11:44=A0am, "Tom Biasi" wrote: > "species8350" wrote in message > > news:39f2e864-4274-4542-92c8-72b57186dc0b@p23g2000prp.googlegroups.com... > On Jan 11, 9:18 pm, "Tom Biasi" wrote: > > > > > > > "species8350" wrote in message > > > news:b251c5ea-a63d...Re: Understanding electrical contacts - inkjet cartridges

Re: Which uController to learn?

Spehro Pefhany - 2007-03-15 20:25:00
On Thu, 15 Mar 2007 22:21:33 +0000, the renowned Brendan Gillatt wrote: > On Thu, 15 Mar 2007 13:52:06 -0700, John E. > wrote: > > > PIC is king, I'm sure. But I'd like to hear from those who are using all > > brands. Whichever you use, what do you like about it? What don't you like ...Re: Which uController to learn?

Re: Second Time Derivative Of Current

Jon Kirwan - 2009-08-20 21:35:00
On Thu, 20 Aug 2009 16:19:37 -0700, John Larkin wrote: > On Thu, 20 Aug 2009 21:41:41 GMT, Jon Kirwan > wrote: > > > On Thu, 20 Aug 2009 13:05:26 -0700, John Larkin > > wrote: > > > > > On Thu, 20 Aug 2009 19:06:13 GMT, Jon Kirwan > > > wrote: > > > > > > > On Thu, 20 Aug...Re: Second Time Derivative Of Current

Re: Poles an Zeros

Tim Wescott - 2008-02-29 00:55:00
Rob wrote: > Hello, > > Could someone explain to me Poles and Zeros. > What does a Pole do and what does a zero do and how they interact > together. > How does phase, gain, and delays relate to them? > > If a book or a link could be recommended along with a what math needs > to b...Re: Poles an Zeros

Re: How I would like to change the *digital* cell phone industry.

RHF - 2007-07-21 15:19:00
On Jul 21, 10:24 am, Don Bowey wrote: > On 7/21/07 9:28 AM, in article > labolide-FDDD0E.09284621072...@news.giganews.com, "Kurt" > > wrote: > > In article , > > Don Bowey wrote: > > > > On 7/20/07 8:27 PM, in article > > > labolide-AEBDD9.20275920072...@news.giganew...Re: How I would like to change the *digital* cell phone industry.

IN MEMORY OF DR WILLIAM COHEN OF THE DSRTF "DOWN SYNDROME RESEARCH & TREATMENT FOUNDATION" ... My enty in the guest book

Greatest Mining Pioneer of Australia of all Times - 2009-08-08 19:57:00
http://www.legacy.com/obituaries/postgazette/obituary.aspx?page=3Dlifestory= &pid=3D123923703 http://www.legacy.com/gb2/default.aspx?bookid=3D3079615474935&sign=3D1&cid= =3Dsugg To Dr William Cohen =91 memory. Poor Bill is gone to the place where prayers are of no use & religion of...IN MEMORY OF DR WILLIAM COHEN OF THE DSRTF

Re: AC and meter movements

Paul E. Schoen - 2010-04-12 15:09:00
"Phil Allison" wrote in message news:hpukke$4u6$1@news-01.bur.connect.com.au... > "Alfred E. Schoen" > > > > > AC current is best measured with a CT, and there are some small > > > > inexpensive ones that will handle currents of 5 to 30 amps with a ratio > > > > of about 500:1 suc...Re: AC and meter movements

Re: Was Runaway Prius Really A Runaway? Or Just A Prank?

keithw86@gmail.com - 2010-03-12 15:31:00
On Mar 12, 2:17=A0pm, "Paul E. Schoen" wrote: > "Michael Robinson" wrote in message > > news:ifvmn.22115$mn6.12572@newsfe07.iad... > > > > > > > "Bob Eld" wrote in message > > news:hn8jnh$rsp$1@news.eternal-september.org... > > > > "Bret Cahill" wrote in message...Re: Was Runaway Prius Really A Runaway? Or Just A Prank?

Re: Discussing audio amplifier design -- BJT, discrete

Jon Kirwan - 2010-02-01 05:23:00
On Sun, 31 Jan 2010 12:38:49 -0800 (PST), David Eather wrote: > On Jan 30, 9:06 am, Jon Kirwan wrote: > > On Fri, 29 Jan 2010 13:49:16 -0800 (PST), David Eather > > > > > Yes and No. All the published circuits are made by people who want to > > > sell transistors, > > > > A...Re: Discussing audio amplifier design -- BJT, discrete