Importance

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Abstract

A high-voltage pulse generator may include a number “n” (n is a natural number of not less than 2) of primary electric circuits connected in parallel to one another on the primary side of a pulse transformer, and a secondary electric circuit of the pulse transformer, which is connected to a pair of discharge electrodes disposed in a laser chamber of a gas laser apparatus. The “n” primary electric circuits may include a number “n” of primary coils connected in parallel to one another, a number “n” of capacitors respectively connected in parallel to the “n” primary coils, and a number “n” of switches respectively connected in series to the “n” capacitors. The “n” primary electric circuits may be connected to a number “n” of chargers for charging the “n” capacitors, respectively. The secondary electric circuit may include a number “n” of secondary coils connected in series to one another, and a number “n” of diodes each connected to opposite ends of each of the “n” secondary coils, to prevent a reverse current flowing from the pair of discharge electrodes toward the secondary coils.

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First Claim