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Marx Generator


Part Number: MG20-22C-2000PF

The APELC MG20-22C-2000PF is a megavolt-class Marx Generator specifically designed to drive low-impedance loads. It uses a low impedance, parallel-switched topology, making it well-suited for a wide variety of High Power Microwave (HPM) and flash X-Ray applications.

With a maximum 50 kV charge voltage, and an 18 Ohm source impedance, this generator will deliver a 500 kV, 1.1 kJ pulse into a matched load with a peak power of more than 12 GW.


With a 600 kV open circuit voltage, the MG15-3C-940PF is capable of delivering 300 kV into a 50 Ohm load, with a peak power of approximately 1.7 GW. The generator is also capable of operating with very high repetition rates for short durations.

  • Maximum open-circuit voltage: 1 MV
  • Peak voltage into matched load: 500 kV
  • Source impedance: 18 Ohm
  • Maximum repetition rate: 20 Hz
  • Energy per pulse: 1.1 kJ


The following items are included with this Marx Generator:

  • Marx Generator
  • High-voltage power supply cable with quick connect
  • High-voltage trigger cable with quick connect
  • Two additional stages

The following item is required for proper implementation of this Marx Generator:

  • High-voltage power supply
  • High-voltage trigger unit
  • Pressurized breathable dry air source
Parameter Description Value Unit
N Number of Marx Generator stages 20
Epulse Maximum Marx energy per pulse 1.1 kJ
Pmax Peak power to a matched load 12 GW
Vch Marx maximum charge voltage 50 kV
VE Peak Erected voltage 1000 kV
Cstage Capacitance per Marx stage 44 nF
CE Erected capacitance 2.2 nF
Le Series Inductance 712 nH
Zm Marx Impedance 18 Ohm
L Length 60 in
D Diameter 20 in
PRFmax Maximum Burst-Mode PRF 20 Hz


APELC’s selection of add-on features for high-voltage components are designed to increase safety and usability.


Rugged high-voltage quick disconnect cable connectors for voltages up to 700 kV.


Integrated high-speed current diagnostics in high-voltage quick disconnects.


Software to increase user safety and reduce time spent in testing.


Termination and monitoring capability for a high-voltage, high-power pulse without radiating equipment.


Providing the trigger pulse to a Marx Generator through a pulse forming circuit.


Fully integrated power and control units to deliver a turnkey package for our pulsed power systems.


For more information or to discuss a custom or turnkey system, complete the form below and we will contact you within 24 hours.

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