Difference between revisions of "Test"
From Mech
Jump to navigationJump to search| Line 12: | Line 12: | ||
[[Image:speed_controller_simple.gif]] |
[[Image:speed_controller_simple.gif]] |
||
<math> |
|||
Revision as of 16:25, 18 August 2009
<math> Beware that there is a “dead band” when Vin is between 0.7V and -0.7V, because the voltage has not pass the cutoff voltage for either transistor. This is known as crossover distortion.
Push-Pull Follower Example: A (Poor) Motor Speed Controller
Suppose we want to control the speed of a motor by varying the input voltage between +5V and -5V. We attempt to do this by setting put a voltage divider with a potentiometer like in the circuit below.
<math>
