Triple resonance pulse transformer circuit

Abstract

A modified, resonant pulse transformer circuit, based on a generalization of the well-known double-resonance pulse transformer circuit, is described. This modified circuit allows complete energy transfer in the presence of non-negligible internal capacitance of realistic pulse transformers, and substantially reduces peak transformer voltage, compared to the double-resonance circuit. Conditions under which the internal capacitance significantly affects energy transfer, and sensitivity of overall efficiency to circuit component values are discussed.

A generalized approach to the design of multiple resonance networks

“…Structures and design formulas for the fourth-order ("Tesla coil") and sixth-order networks with transformers (Fig. 5), for energy transfer between capacitors, can be found in [1], [3], and in [7], [8].…”

“…T HE CONCEPT of "multiple resonance networks" was already described in [1]- [6], as a generalization of the idea of the "double resonance" and "triple resonance" networks known in the literature [7], [8], [13]. As initially described [1], [3], these networks were composed of ideally lossless inductors, transformers, and capacitors, and designed in such a way that all the energy initially stored in a capacitor was, at the closing of a switch, transferred to another capacitor in the circuit through a linear transient.…”

“…Networks with this function are still commonly found in pulsed power systems for physics research and other applications, where the energy is transferred from a large capacitance charged at low voltage to a small capacitance, that becomes charged at high voltage, ideally with the same energy. A triple resonance system was developed more recently [8], for this purpose.…”

Development of 600 kV triple resonance pulse transformer

“…Its main characteristic is that the output voltage across the load is much higher than the voltage across the transformer high-voltage winding, which greatly reduces the insulation requirement of the high-voltage winding and enhances the stability of the transformer. 9,10 Moreover, the triple-resonant circuit has more flexibility than the double resonant circuit to design with given primary capacitance and load impedance. That is to say, this kind of transformer is easier to realize engineering.…”

“…That is to say, this kind of transformer is easier to realize engineering. 11,12 In this paper, through theory analysis under any normal mode frequency ratio, 9 the characteristic equation of the tripleresonance pulse transformer and output voltage expression is derived. According to theory analysis and circuit simulation, the design method for the triple-resonance pulse transformer is presented.…”