Patent ID: 11894175
Assignee: APPLIED MATERIALS, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A high voltage power supply comprising:
a primary winding;
a plurality of secondary windings, each having a first end and a second end; and
a printed circuit board comprising:
a plurality of low voltage doubler circuits, arranged in series, to form a high voltage doubler circuit having a lower voltage at a first end and a high voltage output at a second end, wherein each low voltage doubler circuit comprises a positive end and a negative end and comprises a first capacitor and a second capacitor arranged in series and a first diode and a second diode arranged in series, wherein a positive end of the first capacitor is electrically connected a cathode of the first diode and comprises the positive end of the low voltage doubler circuit, and a negative end of the second capacitor is electrically connected to an anode of the second diode and comprises the negative end of the low voltage doubler circuit, wherein the first end of a respective secondary winding of the plurality of secondary windings is electrically connected to a trace connecting the first capacitor and the second capacitor, and the second end of the respective secondary winding of the plurality of secondary windings is electrically connected to a trace connecting the first diode and the second diode; and
a high voltage shield disposed at the second end of the high voltage doubler circuit and electrically connected to the high voltage output, wherein a shield comprises a wide trace disposed on one or more layers of the printed circuit board.