The next day Hillary and I attended the dedication of William Jefferson Clinton Elementary Magnet School in Sherwood, just outside North Little Rock.

This section covers all types of motors, from the elementary circuitry needed to control a variable reluctance motor, to the H-bridge circuitry needed to control a bipolar permanent magnet motor.

The radical construction and operating principle of the orthogonal cylinder structure double air gap common permanent magnet three freedom motor are introduced, and elementary analysis is carried out.