Rectifying circuit
AssigneeABB AB
InventorLeo Nuutinen
Life of this patent
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Abstract
The invention relates to a rectifying circuit comprising a bridge connection with RC protected thyristors, a direct voltage circuit with capacitance and a charging circuit containing a diode (3) or a corresponding component for charging the capacitance of the direct voltage circuit. According to the invention, a resistance, which comprises one or more resistors (4), of the RC protection of the thyristors is located in the charging circuit.
Claims5
A rectifying circuit comprising a bridge connection with RC protected thyristors, a RC protection of each said RC protected thyristor comprising series-connected capacitor and resistor in parallel with said RC protected thyristor, the rectifying circuit further comprising a direct voltage circuit with capacitance and a charging circuit containing a rectifying component arranged for charging the capacitance of the direct voltage circuit, wherein said RC protection resistor of each said RC protected thyristor is connected in series with said rectifying component.
Dependencies are inferred from the claim text.