jstarne1
USA
Asked
— Edited
Hello All, I am thinking this may be a custom build but I will poke around for help. I need to drop the 40 volts from the main drive batteries to usable voltage for the Sabertooth 2x12a motor controller and also the EZB itself of course. Since these run power to the drive motors I need at least 15 amps of current and I would like to have a buffer up to 20 for the EZB V4, and other smaller electronics.
The main batteries are Lipo 40v
The drive motors are 18v
Then there is EZB v4
Any help is appreciated. So far I have come up with paralleling several low dropout regulators , maybe 15 or 20 together sharing a common load.
I think the power supply combo you and DJ have come up with is a good solid one. If you want to buck the voltage down from the 18v batteries for the EZB and other devices that will accept anywhere from 4.8 to 9v then I'd suggest the Castle Creations CC Bec 10A 6S Switching Regulator. Here's the specs. The last line shows the programmer you need to set the voltage:
1.2" (30mm) x .6" (15mm) x .4" (10mm) , Weight: .4oz (11g) Input voltage: 5V to 25.2V (2S to 6S LiPo) Current output: 12 volts input = 7 amps continuous, 10 amp peak Current output: 24 volts input = 5 amps* continuous, 7 amp peak Selectable Output: 4.8 - 9.0V via the Castle Link (sold separately), Default voltage is 5.1V
I use two of these on each of my B9 arms to adjust voltage from 12v down to 7 and 6 volts for servos. Their small and pricey but really stand up and do the job. There are three wires for output. I just use the red and balck for voltage and snip off the third.
Here's an amazon link: 10 amp CC Bec
Here's the Castle Link: Link