公开(公告)号：US12072725B2

公开(公告)日：2024-08-27

申请号：US17762244

申请日：2020-09-24

Applicant: DH Technologies Development PTE. LTD.

Inventor： Manuel Faur ,  Ernesto Gradin

IPC: G05F1/595 ,  G05F1/575

CPC classification number: G05F1/595 ,  G05F1/575

Abstract: In one aspect, a voltage regulator is disclosed, which comprises a first voltage regulator unit configured for regulating a voltage generated by a positive high voltage source, a second voltage regulator unit configured for regulating a voltage generated by a negative high voltage source, a polarity switch for connecting said first and second voltage regulator units to said positive and negative high voltage sources, respectively, and an output voltage port for receiving a regulated positive and negative high voltage from said first and said second voltage regulator units, respectively.

公开(公告)号：US12191131B2

公开(公告)日：2025-01-07

申请号：US17762247

申请日：2020-09-24

Applicant: DH Technologies Development PTE. LTD.

Inventor： Manuel Faur ,  Ernesto Gradin

IPC: H01J49/02 ,  H02M1/14

Abstract: A high-voltage power supply system for a mass spectrometer comprises a ground-referenced power supply with a first transformer having a primary winding and a secondary winding, the primary winding is electrically coupled to a first source of AC power, and a floated bias voltage power supply with a second transformer having a primary winding and a secondary winding, the primary winding of the second transformer is electrically coupled to a second source of AC power. A return electrical path of the floated bias voltage power supply is electrically coupled to the ground-referenced power supply to bias an output voltage of the ground-referenced power supply. A floating shield is around the floating bias voltage power supply, and at least one resistive element is in the return electrical path of the floated bias voltage power supply to reduce noise coupled from the floated bias voltage power supply to the ground-referenced power supply.