G - Physics – 05 – F
Patent
G - Physics
05
F
323/4
G05F 1/455 (2006.01) B23K 11/24 (2006.01)
Patent
CA 1214517
ABSTRACT OF THE DISCLOSURE: Installation for a continuously variable control of the amplitude of an essential sinusoidal electrical alternating current flowing in a circuit with a final control element lying in this circuit and means for actuating the final control ele- ment. The installation shows in electrical respect, in parti- cular with regard to low active power losses, low distortion factors and relatively large control ranges, similary favourable characteristics as those of the well-known regulating transform- ers, in contrast to these however permits an almost instanta- neous continously variable electronic control. The final con- trol element comprises a parallel connection of a first and a second current branch with an inductive resistance in the first current branch and a controllable switching member in the second current branch switchable into an off- and an on- state. The means for actuating the final control element com- prise controlling means for switching the switching member in each half-wave of the alternating current over a variable and by the controlling means controllable part of the half-wave from the off-state into the on-state.
428821
Elpatronic Ag
Robic Robic & Associes/associates
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