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11.发明授权公开(公告)号：US11824445B2
公开(公告)日：2023-11-21
申请号：US18150600
申请日：2023-01-05
Applicant: Navitas Semiconductor Limited
Inventor： Victor Sinow , Weijing Du
CPC classification number: H02M3/158 , H02M1/0009 , H02M1/08 , H02M1/4208
Abstract: Systems and methods that automatically detect state of switches in power converters are disclosed. In one aspect, a power switch includes a first switch coupled between a power input node and a first terminal of a load, a second switch coupled between the power input node and a second terminal of the load, first and second current sense devices arranged to transmit first and second signals including at least one of a magnitude and polarity of first and second currents through the first and second switches, respectively, a first driver circuit arranged to transmit first control signals to the first switch based at least in part on a voltage at the power input node and the first signal, and a second driver circuit arranged to transmit second control signals to the second switch based at least in part on the voltage at the power input node and the second signal.
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Patent Agency Ranking
公开(公告)号：US20230308091A1
公开(公告)日：2023-09-28
申请号：US18189123
申请日：2023-03-23
Applicant: Navitas Semiconductor Limited
Inventor： Santosh Sharma , Thomas Ribarich , Matteo Uccelli , Victor Sinow
CPC classification number: H03K17/102 , H03K17/063 , H03K2217/0063 , H03K2217/0072
Abstract: Systems and methods for a GaN-based motor drive circuit using synchronous rectification is disclosed. In one aspect, a method of operating a motor drive circuit includes providing a half-bridge circuit including a high-side GaN switch and a low-side GaN switch coupled in series at an output node, providing a motor coupled to the output node, turning on the high-side GaN switch such that a first current flows through the motor, turning off the high-side GaN switch, turning on the low-side GaN switch when a voltage at the output node drops below a predetermined threshold voltage, sensing, using a sense device coupled to the low-side GaN switch, a magnitude of a second current that flows through the low-side GaN switch, and turning off the low-side GaN switch when the magnitude of the second current drops below a predetermined threshold current.
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13.发明授权公开(公告)号：US11575321B2
公开(公告)日：2023-02-07
申请号：US17667335
申请日：2022-02-08
Applicant: Navitas Semiconductor Limited
Inventor： Victor Sinow , Weijing Du
Abstract: Systems and methods that automatically detect state of switches in power converters are disclosed. In one aspect, a power switch includes a first switch coupled between a power input node and a first terminal of a load, a second switch coupled between the power input node and a second terminal of the load, first and second current sense devices arranged to transmit first and second signals including at least one of a magnitude and polarity of first and second currents through the first and second switches, respectively, a first driver circuit arranged to transmit first control signals to the first switch based at least in part on a voltage at the power input node and the first signal, and a second driver circuit arranged to transmit second control signals to the second switch based at least in part on the voltage at the power input node and the second signal.
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公开(公告)号：US20250125725A1
公开(公告)日：2025-04-17
申请号：US18922179
申请日：2024-10-21
Applicant: Navitas Semiconductor Limited
Inventor： Victor Sinow , Weijing Du
Abstract: Systems and methods that automatically detect state of switches in power converters are disclosed. In one aspect, a power switch includes a first switch coupled between a power input node and a first terminal of a load, a second switch coupled between the power input node and a second terminal of the load, first and second current sense devices arranged to transmit first and second signals including at least one of a magnitude and polarity of first and second currents through the first and second switches, respectively, a first driver circuit arranged to transmit first control signals to the first switch based at least in part on a voltage at the power input node and the first signal, and a second driver circuit arranged to transmit second control signals to the second switch based at least in part on the voltage at the power input node and the second signal.
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15.发明授权公开(公告)号：US12166421B2
公开(公告)日：2024-12-10
申请号：US18488952
申请日：2023-10-17
Applicant: Navitas Semiconductor Limited
Inventor： Victor Sinow , Weijing Du
Abstract: Systems and methods that automatically detect state of switches in power converters are disclosed. In one aspect, a power switch includes a first switch coupled between a power input node and a first terminal of a load, a second switch coupled between the power input node and a second terminal of the load, first and second current sense devices arranged to transmit first and second signals including at least one of a magnitude and polarity of first and second currents through the first and second switches, respectively, a first driver circuit arranged to transmit first control signals to the first switch based at least in part on a voltage at the power input node and the first signal, and a second driver circuit arranged to transmit second control signals to the second switch based at least in part on the voltage at the power input node and the second signal.
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16.发明申请公开(公告)号：US20220255432A1
公开(公告)日：2022-08-11
申请号：US17667335
申请日：2022-02-08
Applicant: Navitas Semiconductor Limited
Inventor： Victor Sinow , Weijing Du
Abstract: Systems and methods that automatically detect state of switches in power converters are disclosed. In one aspect, a power switch includes a first switch coupled between a power input node and a first terminal of a load, a second switch coupled between the power input node and a second terminal of the load, first and second current sense devices arranged to transmit first and second signals including at least one of a magnitude and polarity of first and second currents through the first and second switches, respectively, a first driver circuit arranged to transmit first control signals to the first switch based at least in part on a voltage at the power input node and the first signal, and a second driver circuit arranged to transmit second control signals to the second switch based at least in part on the voltage at the power input node and the second signal.
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