Device for the suppression of arcs
First Claim
1. Circuit configuration for the suppression of arcs in a plasma wherein to a plasma path a voltage source is connected, comprising a means for sensing an instantaneous value of the voltage of the plasma path, a means for generating a mean plasma voltage determined over a given time and a means for comparing said instantaneous value of the voltage of the plasma path with the mean plasma voltage and for isolating said voltage source (11) from said plasma path if the difference between the instantaneous value of the plasma voltage and the mean plasma voltage exceeds a given value.
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Accused Products
Abstract
The invention relates to a circuit configuration for the suppression of arcs in a plasma wherein to the plasma path (5, 7, 8) a voltage (11) is applied. The instantaneous value of the voltage of the plasma path (5, 7, 8) is compared with a mean value of the voltage which has been determined over a given period of time. If the difference between the instantaneous value and mean value exceeds a given amount, the plasma path (5, 7, 8) is isolated from the voltage (11).
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Citations
6 Claims
- 1. Circuit configuration for the suppression of arcs in a plasma wherein to a plasma path a voltage source is connected, comprising a means for sensing an instantaneous value of the voltage of the plasma path, a means for generating a mean plasma voltage determined over a given time and a means for comparing said instantaneous value of the voltage of the plasma path with the mean plasma voltage and for isolating said voltage source (11) from said plasma path if the difference between the instantaneous value of the plasma voltage and the mean plasma voltage exceeds a given value.
Specification