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1. (WO2017019152) SOLID-STATE PHASE-SPLITTING TRANSFORMER

Pub. No.:    WO/2017/019152    International Application No.:    PCT/US2016/032879
Publication Date: Fri Feb 03 00:59:59 CET 2017 International Filing Date: Wed May 18 01:59:59 CEST 2016
IPC: H02M 5/16
H02M 5/22
H02M 5/293
Applicants: DENT, Paul Wilkinson
Inventors: DENT, Paul Wilkinson
Title: SOLID-STATE PHASE-SPLITTING TRANSFORMER
Abstract:
A solid state power transformer (300) is described for converting an input power signal at a first phase or voltage to an output signal of a second voltage or opposite phase by the use of bidirectional solid state switches (200-1, 200-2) switched at a high carrier frequency to produce a double-sideband, suppressed-carrier representation of the input power signal, which is then synchronously demodulated using further similar switches (200-3, 200-4) to produce the desired output. It is further disclosed that multiple instances of the above with relative phase-staggering of the switching frequency may be operated in parallel and activated or deactivated according to output current demand to provide maximum efficiency over a wide range of current and power levels.