초록 ▼

A polarity reversing circuit having energy compensation may comprise a first inductor connected between the first electrode and a negative terminal of a power supply. The positive terminal of the power supply is connected to the second electrode. A diode and a first capacitor are connected in series

A polarity reversing circuit having energy compensation may comprise a first inductor connected between the first electrode and a negative terminal of a power supply. The positive terminal of the power supply is connected to the second electrode. A diode and a first capacitor are connected in series across the first inductor so that the cathode of the diode is connected to the first electrode. A second capacitor and a switching device are also connected in series across the first and second electrodes. A second inductor is connected between the switching device and the anode of the diode. A bi-directional converter is connected between the power supply and the second capacitor. The voltage polarity between the first and second electrodes may be reversed by actuating the switching device to switch between a non-conducting state and a conducting state. The voltage polarity may be returned to the normal polarity by again actuating the switching device to switch it from the conducting state to the non-conducting state. A bi-directional converter transfers electrical energy between the polarity reversing circuit and the power supply to compensate for variations in the amount of energy reflected by the electrodes during operation.

대표청구항 ▼

[ What is claimed is:] [1.] A polarity reversing circuit for reversing a voltage polarity on a first electrode and a second electrode, comprising:a first inductor;means for connecting said first inductor between the first electrode and a negative terminal of an external power supply;means for connec

[ What is claimed is:] [1.] A polarity reversing circuit for reversing a voltage polarity on a first electrode and a second electrode, comprising:a first inductor;means for connecting said first inductor between the first electrode and a negative terminal of an external power supply;means for connecting the second electrode to a positive terminal of the external power supply;a diode having a cathode and an anode;means for connecting the cathode of said diode to the first electrode;a first capacitor;means for connecting said first capacitor between the anode of said diode and the negative terminal of the external power supply;a second inductor having a first lead and a second lead;means for connecting the first lead of said second inductor to the anode of said diode;a second capacitor;means for connecting said second capacitor between the second lead of said second inductor and the first electrode;switching means connected between the second lead of said second inductor and the positive terminal of the external power supply for selectively connecting the second lead of said second inductor to the positive terminal of the external power supply in response to a switch actuation signal; andbi-directional converter means connected across said second capacitor and connected to the external power supply for transferring electrical energy between said polarity reversing circuit and the external power supply.