Abstract

A novel high power factor rectifier that applies the third harmonic current injection and passive resistance emulation is presented. Conditions for the optimal third harmonic current injection are derived. Structure of the rectifier that applies passive resistance emulation enabling recovery of the power taken by the current injection network is presented. A resistance emulator consisting of a transformer, two diodes and a capacitor is proposed. Choice of the passive components is discussed. Volt-ampere ratings of the magnetic components are derived. Dependence of the input current THD on the load level is presented. Analytically obtained results are verified on a 1.5 kW experimental rectifier.

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