High voltage switching apparatus
AssigneeE2V Technologies (UK) Limited
InventorsRobert Richardson, Stephen Iskander
Life of this patent
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Abstract
A switching arrangement for a high voltage load provides high voltage pulses to the load. The switching arrangement includes N switching modules where N is typically 75. A load capacitance of Cd is required to avoid voltage overshoot at the load and is provided by a capacitance of nCd arranged in parallel with each switch. In addition, a graded capacitance is arranged across each switch. The graded capacitance compensates for unequal voltage sharing during high transience. The graded capacitance and the distributed load capacitance may be arranged as a single capacitance across each switch.
Claims8
A high voltage switching arrangement for applying a pulse across a load, comprising a capacitor for providing electrical energy to the load, and a switch stack for connecting the capacitor to the load, the switch stack comprising a plurality of switches arranged in series, and a plurality of capacitances in parallel across the switches, wherein the parallel capacitances each comprise a distributed load component and a component to compensate for unequal voltage sharing during high transience, the compensation component being graded across the switches.
Dependencies are inferred from the claim text.