Single Phase Brushless Permanent Magnet Motor Simple Physics Model - PART 1 скачать в хорошем качестве

Single Phase Brushless Permanent Magnet Motor Simple Physics Model - PART 1

A simple freshmen level physics model is presented for the single coil (single phase) permanent magnet brushless motor. Understanding the motor requires basic understanding of Faraday's Law of induction, the Lorentz Force, and Lenz's Law. The motivation for this work was its ultimate application to a pulse motor, such as levitating Mendocino type motor having a permanent rotor magnet(s), and a single fixed coil driven by a pulse motor driver circuit. That application is not made in this video, but will be used in future videos... The model was created in MathCad, and the video walks through the derivation of primary quantities like induced torque, EMF voltage, and coil current, and then combines these to produce expressions for input and output power and motor power efficiency. The results of the model can be used to optimize the motor coil conduction angle so as balance output mechanical power and motor efficiency. A part 2 walks describes how coil conduction angle affects the motor efficiency and output power.