Think Power Factor. How can you keep your single-phase power factor over 0.8 while covering a wide range of output voltage?
Using a transformer with dual-secondary windings and automatically choosing the right mix of both series coupled output and parallel coupled output, the Spang Power Electronics 8552 Digital Series/Parallel Switch keeps your power factor high and greatly reduces unwanted EMI as compared to standard phase-fired SCR controllers.
Need DC elimination too? No problem! The 8552 DSPS can control output DC voltages to within +/- 1 mVDC.