The control tag has no wiki summary.
19
votes
5answers
2k views
Poles and Zeros in English
Can someone explain, or provide a good reference to an explanation of Poles and Zeros for say, a power supply compensator, or any control system for that matter. I'm not really looking for a ...
19
votes
7answers
2k views
What is the advantage of a Z transform derived PID implemenation?
I've seen many PID articles, such as this, use a Z transform of the generic PID equation to derive some crazy difference equation which can then be implemented in software (or in this case an FPGA). ...
18
votes
5answers
2k views
How to learn PID Control?
I want to learn PID (Proportional–Integral–Derivative) control mainly for temperature.
I would like to learn preferably through an easy project to do.
Could you please recommend something which ...
14
votes
3answers
11k views
Switching DC with MOSFET: p-Channel or n-Channel; Low Side Load or High Side Load?
I think, it is time I understand working principle of MOSFET transistors...
Suppose that;
I want to switch voltage on a resistive load by a MOSFET transistor.
Any control signal between -500V ...
10
votes
3answers
2k views
Controlling High Voltage device with Arduino
I want to control lava lamps using Arduino. I think it shouldn't be hard project, but I have no experience with hardware projects so I'm not sure witch design will feet best for me.
I consider using ...
7
votes
4answers
455 views
Scaling PID (Proportional Integral Derivative) Output
I have implemented a PID function using the formula,
correction = Kp * error + Kd * (error - prevError) + kI * (sum of errors)
What should I do to keep my output ...
7
votes
1answer
255 views
Conversion of PID controller components with state feedback into single transfer function and discrete state-space form
I've been wrestling with this problem for about a week now, as a part of a year-long project. We're designing a controller for a specific reactor based on a model. After looking at this for a while, I ...
6
votes
3answers
3k views
Control differences between ac induction motor and brushless dc motor?
I have a fairly solid background in industrial AC motor control (soft starters, VFDs, etc.) but something that I'm certainly NOT well versed in is brushless DC motors... the type found in every hard ...
5
votes
1answer
179 views
Using impulse response to control the system
This post by Olin Lathrop is rather inspiring.
The system response is the convolution of the control input with this
impulse response, computed every control sample, which is every 500 ms
in ...
5
votes
1answer
362 views
Controlling a power strip with a toggle switch. Flight sim design
I am building a cockpit. It will function basically as a flight simulator but for a different game. Mechwarrior online. a Mechpit. Here is my problem.
Toggle switch 1 when flipped on turns on the ...
4
votes
3answers
3k views
Using the iPhone to control a remote controlled car via Arduino
So i started this project a while back where i made a remote controlled car that i could control with the directional buttons on my keyboard via an Arduino -> now the next step i want to do is to get ...
4
votes
3answers
467 views
How is precise control over motor as in Segway achieved?
When I read about Segway I always wonder how such precise control over the wheel motors can be achieved.
I mean if the rider wants to go one foot forward, then one foot back, he leans forward, the ...
4
votes
4answers
209 views
PID regulator steady state error problem
I'm working with a PI controller that regulates temperature through a pwm duty cycle.
It generally controls well. However, the system requires a certain minimum duty cycle to balance the heat loss. ...
4
votes
3answers
222 views
Help finding transfer function for root locus using Matlab
I'd like to pick \$k_d\$ using root locus method, but have problems deriving the necessary transfer function of the system presented below. Assume \$k_p\$ is fixed. The question originates from Randal ...
4
votes
0answers
75 views
How to use SCPI on HP33120A via RS232?
I have old Hewlet Packard 33120A function generator (it should be the same type as Agilent 33120A) and I would like to control it with MCU (ATMega). The generator has RS232 and use SCPI commands.
I ...
