Circuit topologies for single-phase voltage-doubler boostrectifiers |
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Authors: | Salmon JC |
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Institution: | Dept. of Electr. Eng., Alberta Univ., Edmonton, Alta.; |
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Abstract: | A new family of single-phase voltage-doubler PWM (pulse width modulated) boost rectifiers is presented. By examining the switching states of several standard single-phase boost rectifier circuits, three characteristic PWM voltage switching patterns are identified: unipolar PWM; bipolar PWM; and phase-adjusted unipolar PWM. From this analysis, an equivalent family of voltage-doubler rectifiers is derived. When high output voltages are required, voltage-doubler rectifiers are shown to be able to generate AC line currents with the lowest current distortion. The circuits presented are examined using circuit simulators and experimental results |
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