Abstract
The steady-state performance of three-phase brushless DC motors supplied from bipolar drive circuits is analysed using frequency domain techniques. The drive system model caters for arbitrary waveforms of the induced voltage, delta- and star-connected windings, advanced and retarded commutation, the on-time of each transistor within one cycle ranging from 120o to 180o (electrical degrees), transistor and diode voltage drops and an average switch resistance in the on-state. Predictions from the analysis are compared with previously published results.
Published Version
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