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Voltage regulators get a lot more expensive as they get to 5 amps or more. Would it be possible to take two voltage regulators and wire then in parallel to a single battery and a single servo controller board (putting the servos on different controller boards isn't very practical). Is that crazy? Could I do it with three voltage regulators?
Or if not, get a switching regulator that can handle high currents. They'll give you much better efficiencies:
If he uses a regulator, it'll likely be a 5V regulator. So with a 7.4V battery fully charged you can expect less than 65% efficiency.
Looking at the datasheets of the switching regulators you can see efficiencies near 90% (depending on various factors).
Of course, the elephant in the room is servo efficiency, which is less than 30% for cheap servos . . .
Quote from: Admin on March 14, 2012, 05:58:21 AMOf course, the elephant in the room is servo efficiency, which is less than 30% for cheap servos . . . You mean power out/power in(?) and yes, neither the motors nor the gearboxes are the Rosetta Stone(s?) of efficiency in cheap servos (not in expensive ones either), but that's hard to change under the current revision of the the Laws of Nature - perhaps some lobbying may help