| 摘要 |
<p>A converter for high voltages is disclosed. The apparatus comprises a bridge circuit having serially arranged switching assemblies (1, 2, 3, 4) so connected as to define at least two input nodes (50, 60) and two output nodes (70, 80), the input nodes being adapted to receive the input voltage across the nodes, and the output nodes being adapted to provide a take-off point for the output waveform. A control circuit is provided to supply a respective control signal to each switching assembly in the bridge circuit. The apparatus also includes a resonant circuit (100) connected across the output nodes (70, 80). The devices are switched at the resonant frequency of the resonant circuit. Thus, by switching as the current crosses zero in the resonant circuit sudden rises in voltage across the devices can be avoided.</p> |
