Questions tagged [controller]

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51 views

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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23 views

LCD Controller- Audio out options? [closed]

I have attached a picture of the LCD controller board that i have. I am wondering if anyone could help suggest audio output options for this? e.g. a specific 5 pin circuit i could plug in that also ...
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30 views

Fan controller overheats and noisy [closed]

My bathroom fan controller gets very hot and makes a loud clicking sound. It works, switching on fan for 5mins after bathroon light goes off. Looking at it wiring, the mains from light switch connects ...
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24 views

RGBW Wireless dimming for COB LED Chip [closed]

I'm working on a project for a ceiling lamp using COB Led chips. I'd like to dim the RGB and the white LEDs wirelessly and here is the problem: COB LEDS are current driven, so I'll need constant ...
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3answers
71 views

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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1answer
47 views

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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28 views

Need help figuring out 8 heater PID controller circuit

I am building heater controller system for 8 heaters using PIDs and contactors. Heaters are divided into 4 groups i.e. 4 pairs of heaters. Each group has its seperate thermocoupler, PID and contactor. ...
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34 views

Arduino/motor shield like controller for 24V DC motor

I have a bunch of small 6V DC motors that I'm running off of an Arduino board and its motor shield. I am able to control the speed via PWM pins and the direction via DIR pins. I wrote a code that ...
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2answers
186 views

12V to 5V regulator for PWM fan controller

I am planning on building a PWM fan controller using a 555 chip. I have found the following schematics for it: The fan I will be using is a Noctua NF-A14 Industrial 3000. From the data sheet, I see ...
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2answers
36 views

Confusion in proportional controller

I was revising proportional controller from here and got confused in following figure which is common in many books also. Since output of controller is proportional(by factor K) to error function but ...
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3answers
78 views

Methods to measure output variable in a feedback system

\$R(t)\$ is reference signal, \$U\$ is controlled input, \$Y\$ is output of the plant, Ts=1 s is sampling time (i.e. after each 1 sec output and reference is compared) and input output relation of the ...
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1answer
73 views

Combine two UART inputs to one averaged UART output?

My thought with this project was to combine two UART gps receivers to one board that would then average the GPS position and output a UART GPS signal. I have no idea if this is even possible. I've ...
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0answers
51 views

DRV8313 Brushless DC motor controller output voltage to motor is zero

I have installed two DRV8313PWP in a custom PCB and I have followed the schematic in the datasheet to control BLDC motors. After researching how to program them, i have concluded that pins EN1, EN2 ...
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1answer
48 views

Voltage Controller Pulse Delay

I want to make, as simples as possible, a circuit that I could control how much delay it can add to a pulse. My goal is to make a anti-wheeling system for motorcycle with cdi. It basically sends a ...
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1answer
60 views

How do I make a voltage switcher using transistors?

I have a 12V battery connected to an electromagnet. I need to be able to change the input voltage from 12V to 9V using a transistor. I was thinking of something that changes the voltage path to a more ...
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58 views

Converting an analog controller into a digital controller... Theory

I have created a stable PI s domain controller for my system. When I go to digitize it in PSIM by adding a ZOH and a delay block and by converting the PI controller into the z domain using backward ...
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1answer
54 views

Solar powered bilge pump [closed]

Thanks in advance for any assistance you provide. My system does everything correctly as expected, but its performance is abysmal. The lift of the pump is very poor, it manages about 50cm before ...
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2answers
60 views

Are electrode based, water level monitoring systems safe?

I want to install a pump control with water level monitoring system. I've seen all kind of sensors, ultrasonic, infrared, mechanical (Based in pressure switch's / float valves), etc. One of the most ...
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2answers
75 views

How to attach wires on a keyboard controller PCB

I want to make a module with 3 momentary buttons that will be record the numbers of pushes on a pc. For this first i though about using an arduino but also I am trying to use a keyboard motherboard/ ...
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0answers
33 views

Stiffness in bldc position loop

I implemented a position loop using lead lag compensator on bldc motor drive. I am not getting stiffness at required position. Can anyone help with the issue. Max tolerance 0.01deg with the reference ...
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0answers
75 views

Custom USB Gamepad Working But Not Detected In-Game

I've created a custom HID gamepad using an STM32L151C8T6 (probably irrelevant) and my computer recognizes the device using the gamepad tester application built into Windows 10. I can verify the ...
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1answer
52 views

PWM Fan Controller for heat exchanger with timed defrost cycle

I am building my own heat exchange ventilator and trying to figure out the best control board options. The first part is simple. I want to enter custom parameters for fan speed based on a temperature ...
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0answers
93 views

Does anyone know what this SMD IC labelled "HuANA" is? I'm having a hard time finding its datasheet on the internet

I am troubleshooting a Xiaomi M365 e-scooter. After checking for problems in the dashboard, I found the BLE controller's supply pin is grounded/shorted with the ground. I found this SMD IC "HuANA&...
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1answer
163 views

What are these pull-ups for on BLDC driver reference schematic?

I'm trying to design a simple BLDC motor controller using L6234 driver IC. Looking at its application reference schematic I came across some weird pull-ups (highlighted in green, I assume these ...
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1answer
62 views

I want to make a temperature controller, but the heating element didn't work

My schematic circuit from controller to heater (12V) When I connect the heater, the voltage drops to zero. When I try it in a simulator with a DC motor, it works: This is my 12V heating element:
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48 views

Can you help identify the controller of smps

Found on smps it is probebly the controller - but couldnt find it on google Looks like it is writen 9202 834p4
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2answers
54 views

What is a "discrete time controller"?

I'm reading a paper, and the first sentence is: Most dynamic systems are controlled by discrete time controllers What is a discrete time controller ? Thanks
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0answers
15 views

Is Image Based Visual Servoing a non-linear controller?

Is Image Based Visual Servoing a non-linear controller? I think it is as the Image Jacobian has square terms of u & v (image-plane coords). Where \$p_u, p_v\$ are the width & height of each ...
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1answer
56 views

How can I make a 'PD' battery port pass 9v instead of standard 5v?

I wanted to get a standard lightweight phone charger to power my DIY portable device. I have tested it with 9v which works but I'm realizing that for those 'PD' chargers I'll need something on my ...
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1answer
59 views

Dc controller fuse keeps blowing

I am using a dc controller like this: https://www.amazon.com/SZMWKJ-Wireless-Controller-Positive-Inversion/dp/B07CG4Y3N9 to control a linear actuator. The controller has a 10A fuse, and the linear ...
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1answer
67 views

DIY LED controller

I am building a LED controller using an ESP 32 and IRLB8721 mosfets. I have 3 RGB LEDs hooked in series. The whole thing is powered by a 12V power supply which says it is set into outputing only 350mA ...
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0answers
125 views

Universal motor torque measurement

I would like to control AC universal motor (brushed). I would like to know the load torque, but I cannot measure the torque directly. I have to calculate it from motor parameters. Please let me know ...
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0answers
44 views

Is it ok to connect the output of a solar controller to a fused outlet on a fuse panel?

The fuse panel is breakered to a battery and is used to power other low amp equipment. The model is the 6 gang blue sea panel with blade type fuses. Since the fuse panel is just a couple pieces of ...
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0answers
23 views

Replacing an analog pot with a digi pot in a flying drone controller

I'm working on a project at the moment and I'm supposed to change the analog pot on the controller with a digi one. My question is does installing the digi pot changes anything in the controller ...
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3answers
229 views

Star Delta Starter control with Arduino

I don't have any experience with star delta starters but on doing some research I concluded that 2 push buttons(NO and NC) are required to turn on or off the system. I have a pump which is star delta ...
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0answers
26 views

Model reference adaptive controller

I have designed a model reference adaptive controller for which I have obtained the step response for different values of adaptation gain. I have attached the output graph obtained. Can anyone please ...
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1answer
98 views

Problem in selection of state variables of inverted pendulum

I was reading about controller design from the book Control System Design, An Introduction by Bernard Friedland. In one of the examples of controller design for an inverted pendulum, the author ...
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0answers
116 views

Controllability and observability from given transfer function

Is it possible to determine whether system is uncontrollable or unobservable or both from given transfer function in which there is pole zero cancellation? for ex.transfer function like this Or it ...
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1answer
59 views

What is significance of these variables in given block diagram of system

This figure is from book by Norman S. Nise and can anyone explain me following variables and their effect on the system 1.'r' , as far as I know it is reference and here author considered its value ...
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2answers
544 views

4.4V Li-ion polymer battery

I accidentally broke down the charge controller on my new Powerbank. However I am left with a brand new unused 20.000 mAh Li-ion Battery. Which I was planning to hookup to a new charging module/...
1
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1answer
72 views

Wiring LED driving lights powered from two separate switches and a common power source for two mode operation

I need to wire a total of four LED driving lights (12 volt, 40 watts per light) that I need to control as two pairs (2 left lights / 2 right lights), with each pair switched by two different means, ...
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1answer
114 views

Is transformation from one state representation to other state representation changes the transfer function of the system

I was reading about designing of controller by state state model from book by Norman S. Nise And author suggested that if state space representations given in problem are of form other than phase ...
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0answers
53 views

Controller design

I was reading controller design using State space model from book by Norman S. In that topic, the author suggested to design controller by converting given state space represention into phase variable ...
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0answers
28 views

How did they calculate the input variable's fuzzy set in this Wikipedia article?

I am looking to understand the fuzzy logic controller ,so I can design an adaptive fuzzy PID controller for an AC/DC converter. Wikipedia "Fuzzy control system" article. Here we see the ...
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0answers
143 views

What is this IC “30=N26” in Philips hue garden light

I'm hoping to identify the IC in this Philips Hue garden light controller, in order to replace it. Suggestions on how to identify what it is, would be greatly appreciated.
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3answers
266 views

Controlling Proportional valve with NPN transistor (TIP 122) using PWM

We are working to control the proportional solenoid valve (9C, 2W) (VSO by parker, datasheet) by changing the voltage across it. For this we are using PWM from the controller, thus changing the ...
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1answer
57 views

Electric scooter

my daughter has trouble depressing the switch on the board to make the scooter go, is there anyway I can wire a throttle to this controller, I can't find the wireing diagram for it so I'm stuck, any ...
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1answer
70 views

Current Theshold Pin of Flyback Converter controller

I am designing a PoE PD with integrated flyback converter controller based on LT4295. I understand most of it but the ITHB Pin (current threshold pin for primary MOSFET) gives me headache. I do not ...
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1answer
39 views

Is it possible to control MPU6000 with Maxon controller Board? [closed]

I am developing a robotic wrist in which I have two DC Motor+encoder pairs connected to a Maxon Escon Module 50/5 each. To control that the output of the wrist is correct, I want to place an IMU unit ...
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1answer
52 views

4 layer PCB controller below layer query [closed]

I have designed in 4 layer PCB. My Controller placed on the PCB top side / first layer. 2nd layer full ground plane. 3rd layer Power plane (fill or not? please confirm.) 4th layer ground fill.