Patent ID: 6667875
Filing Date: 2003-12-23
Classification: B03C,H03K

Abstract:
A pulse generator for producting a voltage pulse at a capacitive load, comprising:a) a separate energy storage capacitor; b) a self-opening, controllable switch; c) a freewheeling circuit including at least one diode, connected in parallel with the controllable switch; d) a first charging circuit being connected in series with the energy storage, a capacitor and at least an inductance; e) a high voltage decoupling capacitor being connected in series with the load; f) a second charging circuit being connected in parallel with the load, whereby the pulse generator and the second charging circuit are capacitively isolated by way of the high-voltage decoupling capacitor; wherein in combination:g) the energy storage capacitor is larger than the load capacitor; h) and the self-opening switch is parallel with the capacitive load, whereby the overall efficiency is enhanced despite the capacitance mismatch between the energy storage capacitor and the load capacitor.