Gtat Corporation

Aeg Power Solution B.v.

Michael Harro Liese

Wilfried Vollmar

Casey Michael Wornath

A method and system of igniting one or more filaments for silicon production includes applying an output voltage to the one or more filaments using a transformer connected with the one or more filaments. In addition, the method includes supplying, in combination with the application of the output voltage, a current to a primary winding of the transformer via a choke to limit the current to a first predetermined current threshold range. The combination of the supplied current and applied output voltage allows a predetermined output range to be generated from a power supply device initially required to ignite the one or more filaments.

Cold filament ignition system and method of silicon rods

Disclosed is a circuit arrangement for supplying variable loads (I, I, M, M, O, O, O) from three phases (L, L, L), with a circuit arrangement having four groups of terminals (A, A, A, A; A, A, A, A; A, A; A, A, A) for the loads (I, I, M, M, O, O, O) which are subsequently designated as terminal groups; the circuit arrangement is suitable and set up for supplying the terminals (A, A, A, A) of the second terminal group from the first phase (L); the circuit arrangement is suitable and set up for supplying the terminals (A, A, A) of the fourth terminal group from a second phase (L); the circuit arrangement is suitable and set up for supplying the terminals (A, A, A) of the first terminal group and the third terminal group (A, A) from a third phase (L); the circuit arrangement is suitable and set up for controlling the voltage of the four terminal groups, and exhibits three control loops for this purpose.

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Duesseldorf, Germany

Michael Harro Liese