|RC circuit sample.pdf||FEATURE ARTICLE
train is ill suited, because the mechanical delay imposed between commanding a new position and that new position being achieved can become greater than what the system requirements will tolerate.
TORQUE + SPEED
To have both high torque and speed requires you to employ a more potent motor. Such motors don't have to be large, but they do require a heftier V × A product delivered to their terminals. Of course, the output of the servo IC can be boosted via a handful of discrete PNP and NPN bipolar junction power transistors, but the biasing of this external array of parts is a nontrivial task. Care must be taken to provide bias tracking stability over temperature, given the PN junction's notorious negative temperature coefficient. Additionally, there is the undesirable inherent inefficiency of the multiple VCE(sat) voltage drops in series with the load, as well as the power wasted in the emitter ballast resistors. Creating an external H-Bridge with discrete MO|