Questions tagged [controller]
Tag is very generic and a bad choice. Please consider a more appropriate and directed tag.
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How to program Motor Controller via SPI
I am using Allegro A4962. Our college course requires us to use an industrial grade motor controller like this one which must be interfaceable to external power mosfets, have PWM as the only input, ...
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NCP12400 ROPP (overpower protection)
This picture is a typical application circuit in the datasheet of NCP12400 flyback controller IC. What does the ROPP in the red circle mean and how does it work?
Some people say it is used to filter ...
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I have a RBGW LED controller that is 4CH*4A but I need a controller that is 4CH*1.5A. Is there an easy way to make this 4CH*4A controller work?
I have a RBGW LED controller that is 4CH*4A but I need a controller that is 4CH*1.5A. Is there an easy way to make this 4CH*4A controller work? The controller is a PWM controller.
Could I simply add ...
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K-Method in Type II Controller
Refer to this document, K-method can be used to find the pole and zero frequency of a Type II controller. There is one point confusing me. Right before Equation 30, it said k is a ratio of fp and fz. ...
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Motor controller design for Ryobi 40 V 16" Lawmower
I'm attempting to build a soft-start motor controller for a Ryobi 40 V, 16 inch electric mower (to replace a broken factory unit; unit is potted so I can't see/access the guts). Only details I have ...
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Use a single push button in two different circuits with different voltages
I recently assembled a multiple switch formed by some resistors and 3 push buttons (NO) to drive an audio effect for guitar (which I will call effect 1), this switch is passive and receives current (...
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Setting the parameters of PID for 10 °C set point
I have a PID controller (REX C100), connected to a TEC1-12706 (Thermal Electric Cooling) and a thermocouple K-type. I want to set 10 °C on my PID.
The problem is that the actual temperature in PID is ...
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Solar panel help
I already have a solar charge controller connected to my solar panels protecting the attached batteries from overcharging.
However I'd like to charge a second battery bank without connecting it up to ...
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Are there drawbacks to connecting a remote diode temperature sensor through a connector and cable interface?
I would like to connect an external temperature sensor (external to the PCB) to a the DP/DN pins of an EMC2103 fan controller. My plan would be to use a twisted pair cable with a generic TO-92 remote ...
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Modifying the latest EK-04 LED controller to have the LEDs stay steady on by default at power up
In June 2023 I bought several of these latest LEDs string lights powered by 120VAC featuring a tiny EK-04 white controller.
On the board there are two ICs, one is a MB10F bridge rectifier.
The other ...
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Help to find LED Robotic Head components
I'm going crazy trying to find this component (Sorry the board is uncleaned full of flux everywhere):
At first I thought it was a simple DC-DC controller (voltage regulator) but I have no way to find ...
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How to design a PI/PID controller with a given bandwidth and phase margin?
I've read the article, Introduction: PID Controller Design, which explained really well the effect each branch of the controller has on the rise time, settling time, overshoot, and error, which gives ...
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What's the point of the proportional branch in a PI controller?
I just watched this MatLab video on the basics of how PI/PID controllers work and for the most part it makes sense. They started with an example with just a P controller and showed that, while it ...
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How to simulate GaN (Gallium Nitride) Mosfet circuits on Simulink?
I am doing a research on GaN devices and comparision of their performances in DC DC converters as compared to Si devices. The issue that I am facing is that I can't find a way to simulate them on ...
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Sensing NES controller plugged in with Arduino
The NES controller is a simple parallel-in-serial-out chip with clock, latch and data pins exposed, as well as 5 V and GND through its connector.
The thing is (and I already researched but I haven't ...
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Way around battery controller limiting maximum charge of new cells
I rebuilt a camera battery (NP-F550) and need clarification as to what is going wrong.
The battery charges and powers the camera without issue, but will only charge for ~5 minutes before charging ...
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Buck PFC controller
I'm considering a buck PFC for the design of my SMPS. The input will take 50 VAC rectify it using a full bridge rectifier. The buck PFC stage will then step down the voltage to a 15 V/20 A output.
I'm ...
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Addressable RGB lights on a battery
I'm working on a DIY project making an RGB tube light or wand. My concern is how I can run an addressable RGB strip on batteries.
Things I have;
A one metre strip with 144 pixels on it that needs 5V ...
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Problem combining sensors with controller board
I found nice touchless sensors to detect water level and need to incorporate them with a control board that will pump water when the level is low and stop when refilled.
I got it figured out using ...
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E-bike battery connection problem
I've been trying to build an e-bike and I have run into a problem with connecting the battery to the controller. As you can see from the pictures there's a 5-pin connector that needs cables to be ...
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Removal of electronic silicone caulk sealant
A controller is sitting under the sealant. I have tried to open it using hot air but no so successful. Can anyone please suggest me any solvent or easiest method to soften and remove the sealant.
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If I give this controller 48 V, 20 A, will it cause damage?
I have a DC power supply that outputs 48 V, 20 A. The bike controller says it works on 36 V and 48 V, and 23 A as a maximum.
Are these 23 A in the case of 48 V, or in the case of 36 V? I'm afraid ...
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What type of motor is in my 110 V, 9 A, variable-speed drill press? It is 60 years old
It quit working. It has AC power going to a small circuit board (which has a small transformer on it), but no power coming out to the motor. It has 2 brushes and a commutator.
I was thinking the ...
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adjusting amount of hysteresis band
How is the amount of hysteresis band in the on/off controller adjusted?
I know that there should be a relation with time constant but I can't find the exact proportion.
Read so many papers but didn't ...
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LCD controller to laptop screen
I found a universal LCD controller in my broken 32" Telefunken TV.
I thought of trying to use it on my broken 15.6" laptop screen.
The interface is LVDS (1 ch, 6-bit), 30-pin connector.
The ...
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PWM Fan Controller, inverted duty cycle
What I am trying to design is a 12 V DC controller for a PWM fan that uses a 100 Hz input signal and reversed duty cycle between 8 and 87 % to drive it. What I mean by reversed is that the fan is on ...
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What device could be used to clamp a 0-10 VDC output from a pot to a lower VDC
We have an outdated machine where software along with most everything else, is obsolete. I am looking for a way, to take the 0-10 VDC output from a potentiometer, which is used as a reference for ...
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Actuator linking alternatives
I am working on a project that requires raising and lowering a static flexible rubber to a max height of 300mm from a zero, flat point.
My issue, other than the fact my expertise lies within other ...
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Switching an active inductor controller with a high-side MOSFET [closed]
I need help switching an active inductor controller using inductive reactance to control the current of two feeds. The circuit I have built uses make-before-break switching just like a rotating brush ...
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MPPT solar charge controller - battery charge current at MPP
I am currently planning to design an MPPT solar charge controller and I am trying to follow a reference design from TI - TIDA 010042.
I am planning to use arduino as the microcontroller for this ...
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CNC Servo System Grounding
Here it's a sketch of a simplified CNC servo system.
The servo drives are non isolated (Digital GND connected to Power GND, drawn as GND)
(My main question on the picture too)
#1: Why some ...
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How to implement the design of a bidirectional buck-boost converter?
I need your help in designing a bidirectional buck boost converter with the following requirements:
Input voltage: 100V-400V
Voltage range: 250V-1.2kV
Output current: 40-80A
Power dissipation of 24 ...
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Relay contact arcing
I use a relay with an 80 amp contact rating to start and run a 1 1/2 hp AC pump motor. The points arc badly and soon become unusable.
Is there a way I can add capacitors to the points in this AC ...
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Solar charge controller
I have a question related to pwm charge controller .If I have 120W,22V PV pannel and i have to charge a 12.8V ,54Ah battery,which solar controller to use, pwm or MPPT?
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Using a varying DC voltage signal to trigger an on/off signal?
This question is for automotive use.
A system monitors a constant voltage of 3.3 to 5 V (this voltage is fixed but varies from vehicle to vehicle) to indicate an "okay" status, when there is ...
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Integral Compensator Realization from Transfer Function
I am trying to design a compensator based on the transfer function below
Gc(s)=(1.017E6s+4.969E9)/(s^2+4.884E5s)
The transfer function has a constant that is offsetting circuit gain, followed by a low ...
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PID controller question
I came across this PID controller that drives a motor, which I understand well.
For my application, I need to drive a load in both direction (two electromagnets in series with poles opposed).
The ...
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Brushed DC Motor Closed Loop Speed Control Under Load
I've designed a PI controller to control brushed DC motor speed between 0.6Hz - 6Hz (RPM:36 - 360). When I control the motor speed at 0.6Hz (approximately 4.0V supply and 60% PWM duty), it can rotate ...
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Is it possible to modify 8-pin Christmas tree LED controller's functions?
Intro
I have an 8-function artificial Christmas tree. The 2-wire LEDs have eight different lighting settings. The control box of the tree has a pushbutton that I can depress to cycle through the ...
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DE-9 female to usb male conversion of gamepad for PC
I have an old game console which had Mario and contra old games . It has two controllers,they have db 9 female at there end but i want it to run it in my PC via USB. I want to know how i can convert ...
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Pre-charge resistor and contactor power dissipation calculation
I am building my e-motorcycle. I am planning to use only one contactor instead of using three contactors. In my plan, pre-charge resistor and contactor circuit will be main contactor too. I am curious ...
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Quick state feedback controller question
If two estimators where used in a state feedback system, one with error dynamics poles at -10 and -9 and another one at -80 and -90.
Which system will give you a better overall performance?
user279216
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Identify a component in a picture of a motor controller
I have the picture below of an electronic component I want to identify and get the meaning of the code marked on it. There are two of them pointed with arrows. The code on the visible one is J1K.
The ...
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Designing a controller (control systems)
I have to propose a controller C such that the entire closed loop system would be stable and the error approaches zero as time goes to infinite. I'll now explain in more detail.
I need to find a ...
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Problem with TRIAC-TDA1085c circuit
I have a problem with a TDA1085c circuit.
The board has 2 terminal switch with a moving shaft.There are 3 positions. Position 0 (motor stopped) position 1 (right-handed rotation) and position 3 (left-...
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What are the limits of Peltier cells?
I am doing a project for the university.
The project consists of a temperature controller in a glass chamber. The objective is a controllable temperature in a range of 0 - 100 degrees Celsius. The ...
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DIY Ebike BLDB motor controller, low torque, is it my motor?
I've designed a 3 phase inverter for driving a BLDC hub motor. The design (if anyone wants to look at schematics, is here). This works well, the motor spins up and down fine, no worries.
However, if I ...
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What is "Reference" that leads to the controller block?
I am currently reading the textbook Fundamentals of Power Electronics, third edition, by Robert W. Maksimovic and Dragan Erickson. In the introduction, the authors say the following:
Control is ...
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Throttling of Electronic Speed Controller with 6S lipo
Thanks for having look at this.
I had an turnigy 150A ESC and 2000KV bldc motor. I calibrated ESC and it happened perfectly.
I connected 3S lipo to ESC and increased the throttle from 1100uS to 2000uS....
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