connect a 12v heated bed to a 24v driven duet wifi
npm1 last edited by
I've got a silicone heated bed that has a 12v 240w sticker on it
Would connecting this to the device below allow me to connect the heater to the 24v driven duet wifi:
I wouldn't want to use another power supply to run it.
bearer last edited by
Only if you also use an external mosfet for the bed, connecting the dc/dc converter to the bed output probably wouldn't work too well, maybe if you used a low enough switching frequency.
By far the easiest method would be to run the 12v bed with 24v at a reduced duty cycle. Look at the P parameter for the M303 command. Beware this does carry some additional risk if the firmware or hardware were to have a problem leaving the heater turned on full power, but it could be mitigated by using a thermal fuse.