ox (plural oxen) 1  An adult castrated male of cattle (B. taurus). 2  Any bovine animal (genus Bos). A neat, a beef.
The control line does not supply. power to the motor directly it is an. input to a control chip inside the. servo and as such it does not have. to supply much current to the servo. Consequently if you are designing a. servo controller you may use just. about any technology (CMOS, TTL,
What you're missing is that the input is 120 volts but the output is only 12 volts. Electricity from the wall is AC, and is 120 volts. The adapter changes that to low-voltage DC, usually 3, 6, 9, or 12 volts. So the output is 12V x 1.67A = 20W, which is less than the 30W input. Output is always less than input, because the conversion process is inefficient.