Controller Definition and 183 Threads

Hello... I was trying to make a circuit to control the intensity of light of a lamp...i thought about using a reohstat in series with the lamp, but i want to try a circuit which changes the frequency of the current entering to the lamp. How do we make such circuit, taking into consideration we...

I am an Electrical & Electronic Engineering student who has previously used a PIC micro controller for one of my previous college's projects, in that case we didn't have a choice we had to use that particular micro controller, partly because all the class using the same would be easier to teach...

Homework Statement "An air traffic controller spots two planes at the same altitude converging on a point as they fly at right angles to each other. One plane is 120 miles from the point and is moving at 400 miles per hour. The other plane is 160 miles from the point and has a speed of...

I am designing a controller for an elevator. The elevator can be at one of two floors: Ground or First. There is one button that controls the elevator, and it has two values: Up or Down. Also, there are two lights in the elevator that indicate the current floor: Red for Ground, and Green for...

I want to tune my PID controller. For this I could either do this on-line using the controller on the system, or I could try to obtain the systems' transfer function and then simulate it off-line together with the PID controller to tune it to the desired behavior. I suspect the system is...

Helo, I am currently designing a controller whice goal is stabilizing (by means of feedback) a known plant. The design is carried out with matlab. Now, there is an option of using the gui "sisotool" for the controller design. The problem is that i want the closed loop system to meet...

I'm making a circuit around the stepper motor controller L297 on a breadboard, and I've got it working so far. I haven't connected it to the H-bridge and so obviously not to the motor either. But I'm checking the logic levels using 4 LEDs connected to the outputs and they corrospond with the...

Hi, I am supposed to build a controller for a 5 wire servo. I'm having trouble finding information online that appeals to electrical engineering folks. What are the 5 wires? I suspect there is power and ground, but that leaves 3 unknown connections :eek: I have a basic understanding...

Good day everyone I'm implementing a speed controller for a DC motor 220 v 2.7 A 1500 rpm. I've already made and tested the firing circuit and the motor works fine in an open loop. Now big problem the parameters of the motor are unknown and impossible to find. No time for mechanical...

I need to design a lead/lag controller for the following 3rd order close loop transfer function using the root locus method: (11.35)(1.62) ------------------------------- (s^2 + 1.84 s + 11.35)(s + 1.62) The design requirement is...

Hello, I am designing and eventually constructing a high current DC motor controller to be used in an electric vehicle for a senior design class. Right now I am at the stage of selecting the PWM source for the MOSFET drivers. A team member wants to use dedicated PWM TTL chips, I wish to use a...

My team is looking to control a TFT LCD monitor, similar to the computer monitors we use everyday. We were thinking of taking the LCD out of the monitor (or buying a brand new LCD screen) so we're looking to control the pure LCD, not the VGA input/output, but heard from some other people that it...

I was just thinking with christmas right around the corner I wanted to do something a little different than the usual lights on the eves. I would like to build a light controller that cues different sections of my lights to music, kind of like this but Ill probably tone it back a little bit...

I need to heat styrene to its forming temp of around 325 degrees F. I have a heating gun that operates at too many amps to use safely at home. So I found these temp controllers that don't use a lot of energy, but can get hotter then my blow dryer can, yet not as hot as the 700 degree heat gun I...

I need an external controller to program the ad9959 dds evaluation board instead of using USB port.

Hi, I have some problem to design a traffic controller. the traffic lights are placed at an intersection of two streets, one street running north-south (called NS) and another street running east-west (called EW). there is 5 clock cycles for Red light, 1 clock cycle for Yellow light , and 4...

i want to use my lpt ports as I/O. for example to run a relay, or react to an outside contact. i need a program which can check the state of ports, or output to ports, and make conditions according to the inputs... is there some kind of program for this? or maybe a c++ directory? thanks

I want to make a modded GameCube controller for "Super Smash Bros.: Melee" I play the game fairly competitively, going to tournaments here and then. It would be very helpful if I could have a "short-hop" button. This would hopefully be implemented on the y button. What this button needs...

i'm using p type mosfets for an r/c cars h bridge controller (the two n types have been replaced with p types because of their lower internal resistance) and was wondering if there is a way to do it without voltage pump circuits that stills alllows a P.W.M. torque controller.

I was wondering how much would a USB controller cost in the USA, I'm looking for something simple but with a built in micro-controller, and if it could be shipped to outside the US? Thanks.

Hi! I have to use a Honeywell-Mellen controller UDC 3200. To heat up to 1000°C with 5°/C min. I was programming as follwing: SRAMP Time:250 EU/HR: 8500 GAIN: 60.0 but is is still fast heating ? Have you any idea how to do it? Thank you in advance!

I just took over a project for a person that left the company. The project was supposed to be fully documented, but the documentation seems to have come up missing. The application involves using a microcontroller as a PID controller. I will have a desired speed, and the actual speed. I...

I recently made a Type K thermocouple (Chromel-Alumenel type) and am trying to see if it is working correctly. I do not have the necessary equipment or time to use cold junction compensation, so I was told by my professor to just test the temperatures and voltage readings at room temperature (20...

heya, recently i had to have a buddy of mine kill my comp and install windows 98se, now i got mostly everything working except the audio device, i think maybe even my video isa bit screwy...anyway igotta p3, 733mhz, 158mb ram, intel graphics controller which Used to work withan intel 82810...

Hi! I try to simulate buck,boost and buck-boost converters in Matlab/Simulink with PID controller but I don't know how calculate PID parameters Sad Anybody knows how I calculate this parameters ? Or maybe someone haves buck,boost or buck-boost example circuit in Matlab/Simulink ? Or maybe...

Plz can anyone here tell me something general things about DC series motor Drum Controller? I've been trying to find it out but all in vain! Plz help

http://www.1up.com/do/newsStory?cId=3143782 This is quite a departure from the standard controller. Instead of pressing a button to swing a sword, you actually swing the controller.

I've been having some trouble figuring out why a controller that I've designed using MATLAB is giving me trouble. I"m using a polynomial equations approach to the design problem. It seems that the Z transform of the controller's transfer function has near zero values in the numerator. I'm not...

Shucks Howdy y'all. Well, I have to make a large servo (the motor will pull about 10 amps) which I can do using a PIC od an AVR; however, I'd like to get my hands on a dedicated servo controller if possible. Does anyone out there in internet land know where I can get my hands on a servor...

Finally, this will be the first hardware RAID controller that I will own and will use in my own workstation. Software RAID does get tiring after awhile, especially if you have an ungodly amount of small drives in a system (6 * 9gb U160 SCSI drives - reliable, fast, however, small). With...

Hello, I am finishing my first semester as an electrical engineer. Thus, we have to do a final project. The problem is that I didn't have to much time in the lab to finish it up, so it is a little bit difficult to solve it theoretically. If anyone can help, I would be grateful. The project...

Why is it that a proportional controller will always result in an offset error?

I'm working on a hybrid engine project but its hard to find any info on the controller... does anyone know what are the common inputs/outputs and does the conroller itself regulate the power source (engine/motor) or is there a separate system to do this? Another thing what is the best way to...