What are some best practices for adding a 12V trigger to a Hypex NC252MP without blowing it up or finding out how good of a speaker dummy load my body makes? My goal is to control it from a Denon AVR that has a 12V trigger out.
I don't want to connect it directly to the Power Supply Enable pin on the amplifier board. That seems "bad" and that I'd want isolation between the trigger in and the amp, by using a relay. What relays would you prefer for this purpose?
The board has both a Standby and Main SMPS, with the Standby currently set to trigger the Main. I assume I can just put a 3.5mm mono connector in the back panel, and connect that to a relay.
Can I use something like this?
https://www.pololu.com/product/2482
I assume that I could connect it like this:
J6.3 -> VDD, COM
J6.4 -> GND
J6.9 -> NO
Incoming trigger wire -> EN
The relay docs say EN will actuate the coil at ~>2.5V and will accept up to 20V, so the 12V high shouldn't damage it.
Where does the trigger cable ground terminate, just at the rear plate?
I assume I could also get their 12V version and connect the trigger directly to VDD and GND, and then short VDD and EN.
I've seen other relays that are just four connectors, two for the trigger and two for the load, but I can't seem to find them.
I'd rather not use an extension outlet with built-in trigger.
I don't want to connect it directly to the Power Supply Enable pin on the amplifier board. That seems "bad" and that I'd want isolation between the trigger in and the amp, by using a relay. What relays would you prefer for this purpose?
The board has both a Standby and Main SMPS, with the Standby currently set to trigger the Main. I assume I can just put a 3.5mm mono connector in the back panel, and connect that to a relay.
Can I use something like this?
https://www.pololu.com/product/2482
I assume that I could connect it like this:
J6.3 -> VDD, COM
J6.4 -> GND
J6.9 -> NO
Incoming trigger wire -> EN
The relay docs say EN will actuate the coil at ~>2.5V and will accept up to 20V, so the 12V high shouldn't damage it.
Where does the trigger cable ground terminate, just at the rear plate?
I assume I could also get their 12V version and connect the trigger directly to VDD and GND, and then short VDD and EN.
I've seen other relays that are just four connectors, two for the trigger and two for the load, but I can't seem to find them.
I'd rather not use an extension outlet with built-in trigger.