High voltage resonant inverter for capacitive load
First Claim
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1. A high voltage generator for an electrical load having capacitive components, comprising:
- a main inductor connector across and in parallel with the electrical load, said main inductor and the load constituting a resonant circuit;
an auxiliary inductor magnetically coupled to the main inductor;
a drive circuit including the auxiliary inductor and a pair of parallel connected switches connected across an alternating current source having a peak current to energize periodically the electrical load; and
means for opening and closing the pair of parallel switches alternately in push pull relationship at times to apply to the auxiliary inductor a current below the peak current of the current source.
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Abstract
An inductor is connected in parallel with an electrical load which, together with the capacitive components of the load, forms a resonant circuit. An auxiliary inductance coupled to the aforesaid conductor is energized periodically. During the oscillations, the resonant circuit delivers the energy to the load. The power dissipation of the switches is very low, due to the auxiliary inductance and the resonant circuit. The high-voltage generator is particularly suitable for gas lasers.
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Citations
5 Claims
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1. A high voltage generator for an electrical load having capacitive components, comprising:
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a main inductor connector across and in parallel with the electrical load, said main inductor and the load constituting a resonant circuit; an auxiliary inductor magnetically coupled to the main inductor; a drive circuit including the auxiliary inductor and a pair of parallel connected switches connected across an alternating current source having a peak current to energize periodically the electrical load; and means for opening and closing the pair of parallel switches alternately in push pull relationship at times to apply to the auxiliary inductor a current below the peak current of the current source. - View Dependent Claims (2, 3, 4, 5)
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Specification