Device for continuously controlling the amplitude

专利名称：Device for continuously controlling the

amplitude of a sine shaped A.C. electriccurrent

发明人：OPPRECHT, PAUL申请号：EP83103723.9申请日：19830418公开号：EP0096194A2公开日：19831221

专利附图：

摘要：Device for continuously controlling the amplitude of an essentially sinusoidalalternating electric current (16) flowing in a circuit (15), comprising a control element (17)located in the circuit (15) and means (8) for operating the control element, whichelectrically exhibits similarly advantageous characteristics as those of known regulatingtransformers, particularly with respect to low reactive power losses, low noise factorsand relatively wide adjusting ranges, but, in contrast to these transformers, allows analmost delay-free continuous electronic control. The control element (17) comprises a

parallel circuit of a first and of a second current branch (1, 3) with an inductive resistance(2) in the first current branch (1) and a controllable switching element (4, 5), which can beput into a blocking and into a conducting state, in the second current branch (3), and themeans for operating the control element (17) comprise control means (8), in order to putthe switching element (4, 5) from the blocking state to the conducting state in each halfwave of the alternating current via a variable part of the half wave which can becontrolled by the control means (8).

申请人：ELPATRONIC AG

地址：Baarerstrasse 112 CH-6300 Zug CH

国籍：CH

代理机构：Hotz, Klaus, Dipl.-El.-Ing. / ETH

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