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22 Threads found on edaboard.com: 220 Relay
Dear Friends , I have a solenoid valve rated 6W , 220 v AC. That is when switched on via a relay then it gets the supply and it draws around 58mA as checked by clamp meter . Now I want to check whether the solenoid vale is turned on or not using a microcontroller pin and optocoupler 4n35. I have used a circuit also but it seem
this is a simple circuit yet as it uses 220 ac volts i'm think the smart thing is to ask experts if there is anything wrong with it before plugging it in i've a laser sensor with a relay that switches off if the beam isn't recieved a timer relay (delay on) which i use to turn the circuit on for certain amount of time a contactor which i (...)
this is a simple circuit yet as it uses 220 ac volts i'm think the smart thing is to ask experts if there is anything wrong with it before plugging it in i've a laser sensor with a relay that switches off if the beam isn't recieved a timer relay (delay on) which i use to turn the circuit on for certain amount of time a contactor which i (...)
it seems your little board has a 220 resistor which should be enough for this task. I think that your problem reside in another part... your emitter board has a small led, does it turns on when you send a command? does it keep stuck when it fails? if so, maybe your amplifier is too high, try lowering the volume, and maybe add an inverse polarized
Hello, I'm searching the schematics of the pcb from an LKB220 welder unit. The name of this PCB is LKC12. This PCB is also used in Migmag 160 and 240. The service manual of the welder unit gives only parts of the schematics. Mine welder will not start (contactor vibrating!) I suspect a issue in the command circuit of it (K1 relay or the drivin
my aim is to switch an electric bulb operating at 220v AC..for this purpose i use a 12V DC relay that can operate for 220 V appliance according to its data sheet. my relay circuit is now, when i use a regulated power supply( i have used a desktop PC's SMPS unit for power supply that giv
how relay drive a 220 V bulb? bulb? I mean whole circuit is operating on 5 V but 6 V relay is driving 220 V bulb, how?
Err, yes, it all depends on the relay design, if you want to switch 5 KW @220v with a 5v 20 mA relay then a slave relay would be required. Frank
Would somebody be kind to tell me about an AC Mains(220 or 120VAC) regulating circuit capable of delivering up to 600W with overvoltage and overcurrent protection? Thanks in advance...Simplicity is critical For overcurrent protection use fuse. Overvoltage / Undervoltage protection (voltage stabiliz
Hello i create this below circuit but it has a big problem My MCU works fine until after 2-3 seconds that i switched on an AC 220V 1A lamp. as i tested before when i disconnect the AC voltage source from my circuit works fine (it switch on the relay and do the functions properly) what is my wrong?(i forget to say i polygon my PCB)
Hi All, I m still waiting for someone to guide me in detail coz this project is very new to me. Also i need one more suggestion regarding relay selection what type of relay i should use as i will draw max: 300mA on 220 AC.
I have divided a big task into small sub-tasks :) As the title says, I am now focusing on installing a three phase 1.1 kW 220-240/380-480 V @ 50 Hz pump to a PLC unit. Basically how I see it, is the PLC de/activates the relay/contactor which turns on/off the supply to the pump. I need advise and guide throug this, thank you :) I see it
Hello, i am made a temperature controlled fan circuit, but since im new to this im not sure if i made it as optimal as i could. I prety much used the standard recommended applications from the datasheets, and mixed it up into a circuit. The temp. censor i use is a LM35, and i used it like
hi i strand in a situation a computer turns on automatically and i need to run an 220 volt fan when its turns on fan can not run constantly i want to know if anyone knows a circuit that switch fan on when computer turns on an switch off when computer shut down gracias
If you need a power supply at 5v all you need is a 9v 500mv with a 7805T which is a TO 220 OR A 78L08 which is TO92 and 220uf 16v and you have a 5v power supply just send me a Email
my relay has 8 pins. it writes on it 12vdc ,220/250v AC 5A 012-2Z how to use it which pin is doing what? its the first time i use a relay help?!
Hi. I have a problem with the drive of a 220 V ac relay . I have an 8051 mcu with which i drive (with a uln2003 interface ) a 12 vdc relay. This in turn switches a larger 220V ac /6W relay . I have a snubber in shunt with my 12v relay board consisting of a .033 uF X2 cap. in series with 100 (...)
You need a relay with a coil voltage of 220 V. AC . With normally closed contacts.
hello i want to on/off a 220 Vac line with 5 v control signal and i dont want to use relay how can i do this?
Hi, I don't really know AVR micros, but I share some of my experience with PIC. I have a circuit with PIC16f876 that turns 30A (220 AC) relay; and even producing noise with a connection made with touching to wires of the load, every thing works well. I use 100nF Cap from Vss to Vdd HH NeuralC