Abstract
In order to synchronize the high-current pulsed discharges in the "two-pulse" experiment in which high electromagnetic noise was produced, a high-voltage synchronization system was constructed. Being composed of one multi-channel time delay unit based on a field programmable gate array and five high-voltage pulse generators, the system could send out five 25 kV trigger pulses with time delays from 0 to 1 s and a smallest time step of 10 ns. The time delay unit and each high-voltage pulse generator were separately put inside metallic boxes for electromagnetic shielding, grounded separately and powered by batteries or isolating power supply transformers. The time delay unit delivers the time delay signals through optical fibers to the high-voltage pulse generators. Furthermore, a highly negative biased thyristor was chosen as the switch that controls the discharge from an energy-storage capacitor to the primary of the high-voltage pulse transformer. The synchronization system was successfully used in the "two-pulse" experiment in which the electromagnetic noises were very strong, proving the system possessed a high noise-immunity.
| Original language | English |
|---|---|
| Pages (from-to) | 632-636 |
| Number of pages | 5 |
| Journal | Gaodianya Jishu/High Voltage Engineering |
| Volume | 36 |
| Issue number | 3 |
| State | Published - Mar 2010 |
| Externally published | Yes |
Keywords
- Field programmable gate array
- High-voltage pulse generator
- Multi-channel time delay unit
- Static induced thyristor
- Synchronization system
- Two pulses experiment