Appreciate any advice or recommendations people might have for tapping the onboard BlueROV power when adding additional custom components that require a DC power source.
I’m presuming the basic approach is to attach a DC-DC converter to the BlueROV power rail to output the required voltage but wondering if there are any limitations with theload (voltage or current output) as well as requirements to isolate/protect the BlueROV electronics or issues with overheating of the electronics enclosure etc?
Hi @BillyBudd -
Ideally most payloads can just accept battery voltage! I have used DCDC converters before, and never run into any “limitations”. If it fits, and isn’t outputting signficiant heat due to a large load, you should be fine! Typically payload sensors draw mA of power, so not enough to be concerned about. The ROV battery is capable of sourcing significant current after all!
Thanks Tony - only low voltage between 3-12V/mA-3A. One of these is a laser scale which I recall an old post you had responded to where a user reported some type of damage to the BlueROV electronics although cannot find the post now. These are 3-5V /50mA so requires a DC convertor but I dont want to damage the ROV.
Hi @BillyBudd -
If you only need 5V at 50mA, you could tap into the 5V pins on the Navigator to use the power supply for this. You’d then have a signal line trigger whatever FET you’re using to turn the laser scalers on ?
I don’t recall the post you’re referring to, sorry.
I think thats what the guy who posted about the issue with his laser scaler did but some issue with the device he was using. If I can track it down I’ll get back to you for advice but thanks for this.