neazoi
Advanced Member level 6
Hi,
I have a dual coil latch relay (NEC EA2-5T) and I would like to find a way to switch it on and off using a single RF signal from the same coaxial.
I cannot use DC fed into the coaxial for it, I can only use RF power remotely rectified into DC at the relay side.
One way I was thinking was the time delay like this
**broken link removed** in figure 7.
So when I send an RF pulse one coil is energized instantly, but when I send a longer pulse the other coil is energized.
I have to figure out how I will block the first (already energized) coil in that second case.
Any solutions or other ideas would be helpful.
Just bear in mind that I can only use the transmitter RF for control, nothing else.
I have a dual coil latch relay (NEC EA2-5T) and I would like to find a way to switch it on and off using a single RF signal from the same coaxial.
I cannot use DC fed into the coaxial for it, I can only use RF power remotely rectified into DC at the relay side.
One way I was thinking was the time delay like this
**broken link removed** in figure 7.
So when I send an RF pulse one coil is energized instantly, but when I send a longer pulse the other coil is energized.
I have to figure out how I will block the first (already energized) coil in that second case.
Any solutions or other ideas would be helpful.
Just bear in mind that I can only use the transmitter RF for control, nothing else.