3.6.3 Output characteristicsThe circuit of Figure 3.26 was simulated for different loads and frequencies to quantify the output characteristics for a dc-input of 650V. Figure 3.36 and Figure 3.37 is the result of these simulations.
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Figure 3.36: Output voltage Characteristics of the combined circuits (cp. Figure 3.26) The maximum output voltage is ~12.5kV (mostly independent on the working frequency). The short circuit current decreases with increasing frequency. At a switching frequency of over 16kHz the circuit is short-circuit proof and a limiting resistor (cp. paragraph 2.4) is dispensable. Figure 3.37 shows the power rating dependent on current and frequency. The diagram shows that at a frequency of 16kHz the maximum output power is at about 3A. According to Figure 2.3, the arc voltage at this current is 30V/cm. According to Figure 3.36, the output voltage at 3A is 4000V. Combining these data, in this mode of operation an arc-length of 130cm should be able to be achieved.
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Figure 3.37: Output power Characteristics of the combined circuits (cp. Figure 3.26) |
This page is part of a Frameset: Electrodynamic Sculpture: A Thesis by Rafael Bräg. |
