control

Hello, I am building a control panel for a set of infrared heaters and would like to use some smart dimmers that use leading edge dimming with 120v (https://inovelli.com/collections/inovelli-white-series/products/thread-matter-white-series-smart-2-1-on-off-dimmer-switch). Because these cannot...

Hi All, I am designing a ATmega328P based PCB control board that has a function of sending and receiving discrete digital signals to and from a PLC. The PLC has sinking outputs. The PLC can accept sinking or sourcing inputs. I want the PCB to output Sourcing (PNP) signals to the PLC. (mostly...

Need a signal to start a motor on a specific position of another rotating rod by another motor once machine is started not everytime of that postion of the roating rod. Rod is spining by a simple AC motor from turning ON the machine to turning OFF of the machine. So we want to syncronize...

I'm trying to make a schematic, where one IR motion control light switch turns on only one light and another IR motion control switch turn on both lights. I have tried many things, especially diodes which I have currently set up, and work almost perfectly, but the problem is that one light is...

I have linear drive motor that I drive with a PWM signal of frequency 1kHz. The minimum duty cycle for the linear motor to start moving without any load is 30 %. Now I am trying to design and tune a PID controller to control the position (ranges from 0 - 10000 counts). My difficulty in...

Hello all, hope you're doing well. I have a peltier (12 V and 7 Amps) and I want to control its temperature using Arduino. I was using the N channel dual MOSFET module and it worked just fine except that it does not switch polarities. I have read about H bridges but still not sure and it is...

Please refer to the diagram below. BX is +110v or 0v. (not sure DC or AC) NX110 assumes -110v. (Maybe 0v? not sure DC or AC) Y2T is 110v DC relay with a part number of KUP-14D15-110. Its operate voltage is 82.5v. When BX is 110v, the relay coils pick up. Why the relay chatters when C1 is...

I'm currently doing my master thesis, and I'm now at a point where I have to control a few AC motors with a microcontroller. From my previous study about the subject, and from previous similar thesis, I've noticed a common practice is to use an optocoupler to separate low voltage from high...

Hello , I always hear Germansengineer use the term PT1,PT2 and PT3 to describe a controller (alternative to PID). I am trying to find their names in English so I can study them. is there any document in English that explain them? Thanks

I have given the following C-Code to test a 60V DC motor with [gear box ratio 16:1 and incremental encoder to see if the code calculates the speed by reading the Pulse signal as feedback for µcontroller from encoder. The µcontroller is ATmega88A-UA. The encoder RE56-3-1000-TI signals 1000 ppr...

hello everyone, i got a question: I need to make a power supply to heat a heater, for that I need to use an arduino due, and use one of the analog pins (it´s like a built-in DAC) of this microcontroller, and draw voltage from that pin, with an external current source or something similar, I...

I'm tryng to make a DC motor into a servo motor. The motor axle has a gear that is in sync with a gear on a potentiometer (MOTORPOT in the code) and I have another potentiometer that works as an input that the motor potentiometer should match in position however I set this pot(CONTROLPOT in...

Hi, I have the following zero-pole map I created of my discrete system (see attached picture) but I want to make the poles closer to the origin. Is there any matlab command or another way in which this can be accomplished ? Thanks in advance.

Hello everyone, So I have been working on a wireless charger for EV applications. The prototype I designed uses a control system to manage the voltage at the exit of the charger. Without going too deep, we can just assume the charger is a source supplying a square signal of 15 Volts of 150kHz...

Hello We designed this Snubber Circuit with this varistor in parallel but we have a problem in a small load. Even when the relay is disconnected, a small current is flowing. For example, when connecting a phone charger, the phone screen keeps turning on and off. The varistor is Hongzhi Elec...

simple rectifier

I have a simple DC power control circuit that I want triggered by reed relays. It is for model railroad use. One set of reed switches detects the passing of the train . The first switch turns the power on to a trolley car so as the train passes the trolley car is moving. The second reed switch...