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公开(公告)号：US11844155B2
公开(公告)日：2023-12-12
申请号：US17827195
申请日：2022-05-27
IPC分类号： H05B39/04 , H05B45/10 , H05B45/31 , H05B45/3575 , H05B45/38 , H05B45/50 , H02M5/257 , H02M1/00 , H05B45/59
CPC分类号： H05B39/044 , H05B45/10 , H05B45/31 , H05B45/3575 , H05B45/38 , H02M1/0006 , H02M5/2576 , H05B45/50 , H05B45/59
摘要： A load control device for controlling power delivered from an AC power source to an electrical load may comprise a thyristor, a gate current path, and a control circuit. The control circuit may be configured to control the gate current path to conduct a pulse of gate current through a gate terminal of the thyristor to render the thyristor conductive at a firing time during a half-cycle of the AC power source. The control circuit may operate in a first gate drive mode in which the control circuit renders the gate current path non-conductive after a pulse time period from the firing time. The control circuit may operate in a second gate drive mode in which the control circuit maintains the gate current path conductive after the pulse time period during the half-cycle.
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公开(公告)号：US11350494B2
公开(公告)日：2022-05-31
申请号：US17086915
申请日：2020-11-02
IPC分类号： H05B45/10 , H05B45/31 , H05B45/3575 , H05B45/38 , H05B45/50 , H05B39/04 , H02M5/257 , H02M1/00
摘要： A load control device for controlling power delivered from an AC power source to an electrical load may comprise a thyristor, a gate current path, and a control circuit. The control circuit may be configured to control the gate current path to conduct a pulse of gate current through a gate terminal of the thyristor to render the thyristor conductive at a firing time during a half-cycle of the AC power source. The control circuit may operate in a first gate drive mode in which the control circuit renders the gate current path non-conductive after a pulse time period from the firing time. The control circuit may operate in a second gate drive mode in which the control circuit maintains the gate current path conductive after the pulse time period during the half-cycle.
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公开(公告)号：US20240064881A1
公开(公告)日：2024-02-22
申请号：US18496996
申请日：2023-10-30
IPC分类号： H05B39/04 , H05B45/10 , H05B45/31 , H05B45/3575 , H05B45/38
CPC分类号： H05B39/044 , H05B45/10 , H05B45/31 , H05B45/3575 , H05B45/38 , H02M5/2576
摘要： A load control device for controlling power delivered from an AC power source to an electrical load may comprise a thyristor, a gate current path, and a control circuit. The control circuit may be configured to control the gate current path to conduct a pulse of gate current through a gate terminal of the thyristor to render the thyristor conductive at a firing time during a half-cycle of the AC power source. The control circuit may operate in a first gate drive mode in which the control circuit renders the gate current path non-conductive after a pulse time period from the firing time. The control circuit may operate in a second gate drive mode in which the control circuit maintains the gate current path conductive after the pulse time period during the half-cycle.
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公开(公告)号：US20220295610A1
公开(公告)日：2022-09-15
申请号：US17827195
申请日：2022-05-27
IPC分类号： H05B39/04 , H05B45/10 , H05B45/31 , H05B45/3575 , H05B45/38
摘要： A load control device for controlling power delivered from an AC power source to an electrical load may comprise a thyristor, a gate current path, and a control circuit. The control circuit may be configured to control the gate current path to conduct a pulse of gate current through a gate terminal of the thyristor to render the thyristor conductive at a firing time during a half-cycle of the AC power source. The control circuit may operate in a first gate drive mode in which the control circuit renders the gate current path non-conductive after a pulse time period from the firing time. The control circuit may operate in a second gate drive mode in which the control circuit maintains the gate current path conductive after the pulse time period during the half-cycle.
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公开(公告)号：US20210051777A1
公开(公告)日：2021-02-18
申请号：US17086915
申请日：2020-11-02
摘要： A load control device for controlling power delivered from an AC power source to an electrical load may comprise a thyristor, a gate current path, and a control circuit. The control circuit may be configured to control the gate current path to conduct a pulse of gate current through a gate terminal of the thyristor to render the thyristor conductive at a firing time during a half-cycle of the AC power source. The control circuit may operate in a first gate drive mode in which the control circuit renders the gate current path non-conductive after a pulse time period from the firing time. The control circuit may operate in a second gate drive mode in which the control circuit maintains the gate current path conductive after the pulse time period during the half-cycle.
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公开(公告)号：US10827571B2
公开(公告)日：2020-11-03
申请号：US16252776
申请日：2019-01-21
摘要： A load control device for controlling power delivered from an AC power source to an electrical load may comprise a thyristor, a gate current path, and a control circuit. The control circuit may be configured to control the gate current path to conduct a pulse of gate current through a gate terminal of the thyristor to render the thyristor conductive at a firing time during a half-cycle of the AC power source. The control circuit may operate in a first gate drive mode in which the control circuit renders the gate current path non-conductive after a pulse time period from the firing time. The control circuit may operate in a second gate drive mode in which the control circuit maintains the gate current path conductive after the pulse time period during the half-cycle.
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