I have a project in mind where I'll be using a wireless remote system to trigger a larger AC Mains device. For simplicity, I would like to use a SSR to handle the ~15A draw. There is a coil involved, so I like the spike protection built into the Solid State Relays.
The wireless controller outputs a short (~50ms) pulse at 18VDC ~30mA once a second as it polls looking for its originally intended load. When activated from the remote, it connects directly to the 18VDC power source and the source current available will be > 1A (up to 3A I believe if the batteries are fully charged).
I need a way to keep the voltage at the relay terminals below 1.5V (it operates 3-32VDC) when the current is at the low level, but over the 3V so the relay will trigger when the device is triggered and the full current is made available.
I'm scratching my head looking at voltage divider networks and bypass resistors, but I can't seem to get my brain to come to a clear answer I understand.
Thoughts/ideas?
The wireless controller outputs a short (~50ms) pulse at 18VDC ~30mA once a second as it polls looking for its originally intended load. When activated from the remote, it connects directly to the 18VDC power source and the source current available will be > 1A (up to 3A I believe if the batteries are fully charged).
I need a way to keep the voltage at the relay terminals below 1.5V (it operates 3-32VDC) when the current is at the low level, but over the 3V so the relay will trigger when the device is triggered and the full current is made available.
I'm scratching my head looking at voltage divider networks and bypass resistors, but I can't seem to get my brain to come to a clear answer I understand.
Thoughts/ideas?