US 11,888,485 B2
Pulse power supply device
Shingo Tsuda, Tokyo (JP); and Taichiro Tamida, Tokyo (JP)
Assigned to MITSUBISHI ELECTRIC CORPORATION, Tokyo (JP)
Appl. No. 17/925,015
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Jun. 17, 2020, PCT No. PCT/JP2020/023842
§ 371(c)(1), (2) Date Nov. 14, 2022,
PCT Pub. No. WO2021/255875, PCT Pub. Date Dec. 23, 2021.
Prior Publication US 2023/0188123 A1, Jun. 15, 2023
Int. Cl. H03K 3/57 (2006.01)
CPC H03K 3/57 (2013.01) 8 Claims
OG exemplary drawing
 
1. A pulse power supply device comprising:
a plurality of pulse power supplies each of which to output a pulse voltage that is monopolar; and
a plurality of transformers each comprising a primary winding, a secondary winding, and a tertiary winding, wherein one of the pulse power supplies is connected to one of the primary windings on a one-to-one basis, wherein
a plurality of the secondary windings are sequentially connected in series, both ends of a plurality of the secondary windings connected in series constitute output terminals, and a load is connected to the output terminals to form a first closed circuit,
a plurality of the tertiary windings are sequentially connected in series, both ends of a plurality of the tertiary windings connected in series constitute voltage application terminals, a magnetic reset circuit is connected to the voltage application terminals, and a plurality of the tertiary windings and the magnetic reset circuit form a second closed circuit, and
the magnetic reset circuit comprises:
a magnetic reset power supply that is a power supply to cause a reset current to flow through the tertiary windings; and
an impedance changing circuit configured to be able to change an impedance for limiting an induced current that is possible to be caused to flow in the second closed circuit by a voltage induced in the tertiary windings.