This white paper describes the basics of six-step commutation (or trapezoidal control) and field-oriented control (space vector control) in today’s motor control applications. It begins by describing the differences between the current motor types, focusing on the advantages and preferred control algorithms for each type, as well as typical applications for each. It then details the advantages of using the latest family in the NXP microcontroller portfolio, the LPC1500. This white paper specifically discusses the family’s highly integrated analog subsystem—consisting of two 12-channel, 12-bit ADCs sampling at 2 MSPS, 28 PWM channels from four SCTimer/PWM modules, four analog comparators, and a quadrature encoder interface (QEI)—and describes how to use this subsystem in the two control modes mentioned above.
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