Hi everybody,
I have been looking for a solution to my problem (below) for some time now, I finally decided to join the forum, hoping someone could help me.
So, here is what I have:
A device controlling a 240v latching relay, producing an
But I would like to replace the latching relay by two regular relays in order to have
For this application I was thinking about using a rectifier to swich from 240v AC to 240V DC (or four adapted diods), a capacitor to hold the charge a bit longer and finally a 12v DC relay in series with a resistor that would be 19x the resistance of the relay coil (voltage divider).
Could someone help me make this work ?
How could I make it safe... working with 240v AC is quite dangerous.
I will also need to build 10 similar circuits and cost will definitely be an important factor !
Finally, I will give some explanation of the application:
I'm automating motorised curtain tracks to integrate them in my home automation system. The track opening (or closing) swich is a momentary contact between two wires (one +5V and one GND).
The controlling device would be a modified X**broken link removed**.
In advance, thank you for your help,
Martin
I have been looking for a solution to my problem (below) for some time now, I finally decided to join the forum, hoping someone could help me.
So, here is what I have:
A device controlling a 240v latching relay, producing an
- implulse of 240v AC on two wires during less than 1 second to open the relay, and
- implulse of 240v AC on two other wires during less than 1 second to close the relay
But I would like to replace the latching relay by two regular relays in order to have
- the first relay closed during slightly more than one second when the orignial relay was closing
- the second relay closed during slightly more than one second when the orignial relay was opening
For this application I was thinking about using a rectifier to swich from 240v AC to 240V DC (or four adapted diods), a capacitor to hold the charge a bit longer and finally a 12v DC relay in series with a resistor that would be 19x the resistance of the relay coil (voltage divider).
Could someone help me make this work ?
How could I make it safe... working with 240v AC is quite dangerous.
I will also need to build 10 similar circuits and cost will definitely be an important factor !
Finally, I will give some explanation of the application:
I'm automating motorised curtain tracks to integrate them in my home automation system. The track opening (or closing) swich is a momentary contact between two wires (one +5V and one GND).
The controlling device would be a modified X**broken link removed**.
In advance, thank you for your help,
Martin