ARC DETECTOR FOR DETECTING ARCS, PLASMA SYSTEM AND METHOD OF DETECTING ARCS

    公开(公告)号:US20210156893A1

    公开(公告)日:2021-05-27

    申请号:US17161768

    申请日:2021-01-29

    Abstract: An arc detector for detecting arcs in an RF plasma system includes at least two inputs configured to connect to an RF source, at least one output configured to connect to a plasma load, and a 3 dB coupler connected to the at least two inputs and the at least one output. The arc detector further includes a measuring device configured to measure at least two physical quantities transmitted between the 3 dB coupler and the at least one output, a determinator configured to determine an evaluation quantity based on the at least two physical quantities, and a differentiator configured to differentiate the evaluation quantity. The arc detector additionally includes a comparator configured to compare the output quantity of the differentiator with a reference value indicative of an arc.

    Power converter, power supply system and HF plasma system

    公开(公告)号:US11798786B2

    公开(公告)日:2023-10-24

    申请号:US17161808

    申请日:2021-01-29

    CPC classification number: H01J37/32174 H03F3/2176

    Abstract: A power converter configured to generate a high-frequency power signal comprises at least one amplifier stage having first and second amplifier paths each having an amplifier, the first amplifier path outputting a first amplifier path output signal and the second amplifier path outputting a second amplifier path output signal that, has a phase shift relative to the first amplifier path output signal greater than 0° and less than 180°. The first and second amplifier paths are connected to a phase-shifting coupler that is configured to couple the first and second amplifier path output signals to form the high-frequency power signal. At least one amplifier of the first and second amplifier paths comprises a SiC MOSFET.

    BALUN AND AMPLIFIER INCLUDING BALUN

    公开(公告)号:US20210159872A1

    公开(公告)日:2021-05-27

    申请号:US17163605

    申请日:2021-02-01

    Abstract: A balun configured for a power range between 500 W and 5 kW output includes a balanced signal port comprising a first connection and a second connection and further includes a single-ended signal port comprising a third connection and a fourth connection, the fourth connection being connected to ground. In addition, the balun includes a first capacitor disposed between the first connection and a first end of a first resistor and a second capacitor disposed between the second connection and the first end of the first resistor. A second end of the first resistor is connected to ground.

    Balun and amplifier including balun

    公开(公告)号:US11955947B2

    公开(公告)日:2024-04-09

    申请号:US17163605

    申请日:2021-02-01

    CPC classification number: H03H7/42 H03F3/265 H03F2200/09 H03F2200/451

    Abstract: A balun configured for a power range between 500 W and 5 kW output includes a balanced signal port comprising a first connection and a second connection and further includes a single-ended signal port comprising a third connection and a fourth connection, the fourth connection being connected to ground. In addition, the balun includes a first capacitor disposed between the first connection and a first end of a first resistor and a second capacitor disposed between the second connection and the first end of the first resistor. A second end of the first resistor is connected to ground.

    POWER CONVERTER, POWER SUPPLY SYSTEM AND HF PLASMA SYSTEM

    公开(公告)号:US20210159050A1

    公开(公告)日:2021-05-27

    申请号:US17161808

    申请日:2021-01-29

    Abstract: A power converter configured to generate a high-frequency power signal comprises at least one amplifier stage having first and second amplifier paths each having an amplifier, the first amplifier path outputting a first amplifier path output signal and the second amplifier path outputting a second amplifier path output signal that, has a phase shift relative to the first amplifier path output signal greater than 0° and less than 180°. The first and second amplifier paths are connected to a phase-shifting coupler that is configured to couple the first and second amplifier path output signals to form the high-frequency power signal. At least one amplifier of the first and second amplifier paths comprises a SiC MOSFET.

Patent Agency Ranking