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Home » Field Weakening—What, How, and Why to do It
Field Weakening—What, How, and Why to do It
August 3, 2021
Let’s start with why field weakening is useful: it produces a wider speed range for a motor — with a constant torque at lower speeds and an almost constant power capability at higher speeds. This technique increases the motor power capability while also improving efficiency. There are many papers and patents discussing how to implement and optimize field weakening.