公开(公告)号：US20240355612A1

公开(公告)日：2024-10-24

申请号：US18685356

申请日：2022-08-23

Applicant: DH Technologies Development Pte. Ltd.

Inventor： David M. COX ,  Manuel FAUR ,  Mircea GUNA ,  Yang KANG ,  Andrei SONOC

IPC: H01J49/42 ,  H01J49/00

CPC classification number: H01J49/4215 ,  H01J49/004

Abstract: In one aspect, an ion filter for use in a mass spectrometer is disclosed, which includes a plurality of rods arranged in a multipole configuration to provide a passageway through which ions can travel, said plurality of rods being configured for application of RF voltages thereto to provide an electromagnetic field within the passageway for providing radial confinement of the ions and further configured for application of a DC voltage thereto. At least two pairs of auxiliary electrodes are interspersed between the plurality of rods and are configured for application of a DC bias voltage with one polarity to one of said pairs and a DC bias voltage with an opposite polarity to the other one of said pairs to provide a DC potential difference between the auxiliary electrodes and the plurality of rods.

公开(公告)号：US20250036151A1

公开(公告)日：2025-01-30

申请号：US18792786

申请日：2024-08-02

Applicant: DH Technologies Development Pte. Ltd.

Inventor： Manuel FAUR ,  Ernesto GRADIN

IPC: 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：US20220382310A1

公开(公告)日：2022-12-01

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

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：US20250132141A1

公开(公告)日：2025-04-24

申请号：US18685537

申请日：2022-08-23

Applicant: DH Technologies Development Pte. Ltd.

Inventor： Takashi BABA ,  Manuel FAUR ,  Tiberiu GERA ,  Robert HAUFLER ,  William LOYD ,  Pavel RYUMIN ,  Congsheng YOU

IPC: H01J49/02 ,  H01J49/00 ,  H01J49/42

Abstract: A system for applying RF voltages to a multipole ion processing device, configured for use in a mass spectrometer, includes a first RF generator configured to generate a first RF voltage and apply to a first pole electrode set, a second RF generator configured to generate a second RF voltage and apply to a second pole electrode set, a first amplitude adjustor configured to adjust an amplitude of the first RF voltage, a second amplitude adjustor configure to adjust an amplitude of the second RF voltage, and a phase adjustor in communication with the first RF generator and the second RF generator to adjust phase output of at least one of the first RF generator and the second RF generator so as to adjust a phase differential between the first RF voltage and the second RF voltage to be within a desired range.

公开(公告)号：US20220384170A1

公开(公告)日：2022-12-01

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.