Related Manuals for Megaimpulse NPG30P11
Summary of Contents for Megaimpulse NPG30P11
- Page 1 HIGH VOLTAGE NANOSECOND PULSE GENERATORS NPG30P11 and NPG30N11 USER MANUAL v. 1.0 © 2023 Megaimpulse Ltd.
- Page 2 FOR LOSS OF PROFITS, LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE), EVEN IF MEGAIMPULSE LTD. HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY DEFECT OR ERROR IN THIS MANUAL OR PRODUCT.
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Page 3: Table Of Contents
Triggering the generator ................... 14 SYNC OUT pulse ..................... 16 Overheating protection ..................17 Electronic fuse ....................17 Warranty ......................17 Appendix A. The lists of preset values for the frequency and number of pulses per burst User manual of NPG30P11 and NPG30N11... -
Page 4: What Are In The Package
BNC-to-BNC cable for the connection to the external triggering source; BNC-to-BNC cable for registering the SYNC OUT pulse. Fig.1. General view of NPG30P11 HV nanosecond pulse generator. Fig.2. Typical output pulse waveform on matched 75 Ohm load at max amplitude. -
Page 5: Safety Manual
Place the generator on a stable surface. If you encounter any technical problems with the generator, please contact Megaimpulse Ltd. Do not try to repair the generator by yourself. User manual of NPG30P11 and NPG30N11... -
Page 6: Technical Specification
Output connector NPG30, special HV coaxial type connector 5m coaxial cable with 75 Ohm impedance, Output cable outer diameter 9.6 mm positive for NPG30P11 Pulse polarity negative for NPG30N11 Pulse rise time < 5 ns (fast part of the output pulse) Pulse width (FWHM) 11 ns …... -
Page 7: Front View
– Overheat LED indicator – Output pulse energy 2-digit display – Output pulse energy regulation knob with push button The HV output connector, main power supply connector, and the fans inlets/outlets are located on the rear panel. User manual of NPG30P11 and NPG30N11... -
Page 8: Basic Operation Principles
Therefore, FREQUENCY sets the maximum external pulse frequency (minimum pulse-to-pulse interval), and NUMBER OF PULSES sets the maximum number of pulses per second. So, the generator’s control system prevents overloading and damage to the generator in case of improper external triggering. MEGAIMPULSE LTD. -
Page 9: Front And Rear Panels In Detail
OF PULSES regime. The LED display blinks and indicates the NUMBER OF PULSES without a digital dot. For example, 1 pulse setting is indicated as 0001 1000 pulses setting is indicated as . Press down 1000 User manual of NPG30P11 and NPG30N11... - Page 10 INT/EXT green push button. BNC-type output connector for SYNC OUT pulses. The front edge of the SYNC OUT pulse precedes the HV output pulse by ~1.2µs. SYNC OUT pulse width is 400 ns and the amplitude is 5V. MEGAIMPULSE LTD.
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Page 11: Putting Into Operation
After the first testing of the generator, it is highly recommended to check whether the tight contact was attained. Unscrew the cable connector. There should be no ozone or burnt smell from the connectors or any burnt traces. User manual of NPG30P11 and NPG30N11... - Page 12 Fig.4. The load side connection: the HV central wire of the coaxial cable (1) in solid PE insulator (2), the Teflon cone insulator (3) which prevents unwanted arcing, and the ground contact (4), i.e. screw and nut on the clamp connected to the coaxial cable braid. MEGAIMPULSE LTD.
- Page 13 The temperature of the generator's components becomes high after a long-time operation at a high pulse amplitude and frequency. Allow the idle mode to cool down with the fans for several minutes before turning it off. User manual of NPG30P11 and NPG30N11...
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Page 14: Triggering The Generator
(see Fig.5). So, the external triggering pulse works as an enable signal. The HV pulses are generated continuously while the triggering pulse level is high. This is the simplest way to get externally triggered burst mode. The single pulse mode is possible for the external triggering only. MEGAIMPULSE LTD. - Page 15 (50 kHz) sets the repetition rate of the output pulses, SYNC OUT (CH2, green line). The burst length, i.e. 25 pulses, is determined by SYNC IN pulse width (CH3, blue line), which works as an enable signal. User manual of NPG30P11 and NPG30N11...
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Page 16: Sync Out Pulse
3 V on 50 Ohm load and 5 V on high impedance load, the pulse width is 400 ns. The delay between a rising edge of the SYNC OUT pulse and the HV output pulse is 1.2 µs or less. MEGAIMPULSE LTD. -
Page 17: Overheating Protection
WARRANTY Please see your sales agreement to determine the warranty period and terms. The generator has warranty seals. Removing the warranty seals terminates the warranty. User manual of NPG30P11 and NPG30N11... - Page 18 600 Hz 35 kHz 0.600 035.0 700 Hz 40 kHz 0.700 040.0 800 Hz 45 kHz 0.800 045.0 900 Hz 50 kHz 0.900 050.0 *) The default value of 100 Hz is set at power on the generator. MEGAIMPULSE LTD.
- Page 19 A list of preset values for the number of pulses per burst or per second is presented in Table 2. The 4-digit display flashes at 1 Hz frequency, while displaying the set value of the number of pulses. Table 2. Number of pulses 4 digits display Number of pulses...
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