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In order to perform data acquisition and avoid unwanted over-current damage to the power supply,a convenient and real-time method of experimentally investigating repetitive nanosecond-pulse breakdown in polymer dielectric samples is presented.The measurement-acquisition and control system not only records breakdown voltage and current,and time-to-breakdown duration,but also provides a real-time power-off protection for the power supply.Furthermore,the number of applied pulses can be calculated by the product of the time-to-breakdown duration and repetition rate.When the measured time-to-breakdown duration error is taken into account,the repetition rate of applied nanosecond-pulses should be below 40 kHz.In addition,some experimental data on repetitive nanosecond-pulse breakdown of polymer films are presented and discussed.
In order to perform data acquisition and avoid unwanted over-current damage to the power supply, a convenient and real-time method of experimentally investigating repetitive nanosecond-pulse breakdown in polymer dielectric samples is presented. The measurement-acquisition and control system not only records breakdown voltage and current, and time-to-breakdown duration, but also provides a real-time power-off protection for the power supply. Fuerthermore, the number of applied pulses can be calculated by the product of the time-to-breakdown duration and repetition rate .When the measured time-to-breakdown duration error is taken into account, the repetition rate of applied nanosecond-pulses should be below 40 kHz. In addition, some experimental data on repetitive nanosecond-pulse breakdown of polymer films are presented and discussed.