AN IONIC FREQUENCY CONVERTER FOR FEEDING A BETATRON
Viktor Stepanov, A.A. Kukhtin · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 1959
A series of circuits is proposed of ionic frequency converters for feeding a betatron, which do not comprise an inverter unit and make it possible to produce frequencies of 150, 300, 450 cps and more. The description is given and a detalled analysis is performed of two types of circuits of valve frequency converters. The first circuit makes it possible to obtain at the output one- phase voltage of tripled frequency; such a converter consists of two three-phase controlled ionic rectifiers operating alternately with 120 deg electric lag angle. In the circuits of the second type, both half-periods of the transformer secondary winding are utilized. Such circuits can be applied to converters with the frequency ratio f/sub 2//f/sub 1/ = 3, 5, 7, 9, etc. A comparison of the frequency conversion circuits is carried out. The calculation methods of the typical transformers snd the conversion power coefficients are presented. The linear diagrams of the secondary trsnsformer phase voltages and the voltages at the converter output are given. Results from experimental investigation are presented for a circuit built with thyratrons. The circuits proposed have lower cost, larger efficiency, higher simplicity, and reliability in comparison with circuits having an inverter unit. (auth)