High power generator and method of supplying high power pulses

A high power (HP) generator configured to deliver a pulsed high power with a high voltage value and/or a high current value to a capacitive load, the HP generator comprising:

• a plurality of low power (LP) generators,
• each respective LP generator comprising a respective energy storage component, wherein, during operation, the respective energy storage component is charged to a respective predefined value related to the respective energy storage component,
• each respective LP generator configured to supply, during operation, at an output thereof a respective LP generator-value, which corresponds to the respective predefined value of the respective energy storage component incorporated in the respective LP generator,
• a coupling in which the plurality of LP generators is electrically connected such that a coupling-value at an output of the coupling, which corresponds to an output value at an output of the HP generator, is obtainable, and wherein, during operation, at least in some states of the HP generator, the coupling-value is higher than the LP-generator-value at the output of one of the plurality of LP generators,
• a control unit configured to select a respective contribution of each of the plurality of LP generators to the output value of the HP generator during power delivery of the HP generator, in order to generate a rise and/or a decay of a pulse at the output of the coupling,
• wherein at least one LP generator comprises an LP-generator-value limiting circuit, the LP-generator-value limiting circuit comprising at least one of:
• a series circuit of a diode and a capacitor configured to clamp an overvoltage present at ends thereof to a voltage that the capacitor is charged up, and a discharge circuit to discharge the capacitor, or
• a resistor and a switching element, or
• a variable electrically controllable impedance with a power dissipating part.