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公开(公告)号：US08988058B2
公开(公告)日：2015-03-24
申请号：US14109107
申请日：2013-12-17
CPC分类号： H02M7/06 , H02M7/155 , H02M7/217 , H05B33/0815 , H05B33/0845 , H05B33/0848 , H05B37/02 , H05B39/04 , H05B39/044 , H05B39/048 , H05B41/3924 , Y02B20/346 , Y10S323/905
摘要： A two-wire load control device (such as, a dimmer switch) for controlling the amount of power delivered from an AC power source to an electrical load (such as, a high-efficiency lighting load) includes a thyristor coupled between the source and the load, a gate coupling circuit coupled between a first main load terminal and the gate of the thyristor, and a control circuit coupled to a control input of the gate coupling circuit. The control circuit generates a drive voltage for causing the gate coupling circuit to conduct a gate current to thus render the thyristor conductive at a firing time during a half cycle of the AC power source, and to allow the gate coupling circuit to conduct the gate current at any time from the firing time through approximately the remainder of the half cycle, where the gate coupling circuit conducts approximately no net average current to render and maintain the thyristor conductive.
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公开(公告)号：US20140103827A1
公开(公告)日：2014-04-17
申请号：US14109107
申请日：2013-12-17
IPC分类号： H05B33/08
CPC分类号： H02M7/06 , H02M7/155 , H02M7/217 , H05B33/0815 , H05B33/0845 , H05B33/0848 , H05B37/02 , H05B39/04 , H05B39/044 , H05B39/048 , H05B41/3924 , Y02B20/346 , Y10S323/905
摘要： A two-wire load control device (such as, a dimmer switch) for controlling the amount of power delivered from an AC power source to an electrical load (such as, a high-efficiency lighting load) includes a thyristor coupled between the source and the load, a gate coupling circuit coupled between a first main load terminal and the gate of the thyristor, and a control circuit coupled to a control input of the gate coupling circuit. The control circuit generates a drive voltage for causing the gate coupling circuit to conduct a gate current to thus render the thyristor conductive at a firing time during a half cycle of the AC power source, and to allow the gate coupling circuit to conduct the gate current at any time from the firing time through approximately the remainder of the half cycle, where the gate coupling circuit conducts approximately no net average current to render and maintain the thyristor conductive.
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公开(公告)号：US09343997B2
公开(公告)日：2016-05-17
申请号：US14581115
申请日：2014-12-23
CPC分类号： H02M7/06 , H02M7/155 , H02M7/217 , H05B33/0815 , H05B33/0845 , H05B33/0848 , H05B37/02 , H05B39/04 , H05B39/044 , H05B39/048 , H05B41/3924 , Y02B20/346 , Y10S323/905
摘要： A two-wire load control device (such as, a dimmer switch) for controlling power delivered from an AC power source to an electrical load (such as, a high-efficiency lighting load) includes a thyristor coupled between the source and the load, a gate coupling circuit coupled between a first main terminal and a gate terminal of the thyristor, and a control circuit. The control circuit is configured to control the gate coupling circuit to conduct a pulse of current through the gate terminal to render the thyristor conductive at a firing time during a half cycle of the AC power source, and to allow the gate coupling circuit to conduct at least one other pulse of current after the firing time during the half cycle. The load control device is further arranged to conduct current through the electrical load if the thyristor becomes non-conductive and remains non-conductive during the half-cycle.
摘要翻译： 用于控制从AC电源传递到电负载（例如，高效照明负载）的电力的二线负载控制装置（例如，调光开关）包括耦合在源极和负载之间的晶闸管， 耦合在晶闸管的第一主端子和栅极端子之间的栅极耦合电路，以及控制电路。 所述控制电路被配置为控制所述栅极耦合电路，以在所述AC电源的半周期期间，通过所述栅极端子进行电流脉冲以使所述晶闸管在点火时间导通，并且允许所述栅极耦合电路在 在半周期内的点火时间之后的电流中至少有一个脉冲。 负载控制装置还被布置成如果晶闸管变得不导通并且在半周期期间保持不导通，则传导电流通过电负载。
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公开(公告)号：US20190081569A1
公开(公告)日：2019-03-14
申请号：US16186847
申请日：2018-11-12
CPC分类号： H02M7/06 , H02M7/155 , H02M7/217 , H05B33/0815 , H05B33/0845 , H05B33/0848 , H05B37/02 , H05B39/04 , H05B39/044 , H05B39/048 , H05B41/3924 , Y02B20/346 , Y10S323/905
摘要： A two-wire load control device (such as, a dimmer switch) for controlling the amount of power delivered from an AC power source to an electrical load (such as, a high-efficiency lighting load) includes a thyristor coupled between the source and the load, a gate coupling circuit coupled between a first main load terminal and the gate of the thyristor, and a control circuit coupled to a control input of the gate coupling circuit. The control circuit generates a drive voltage for causing the gate coupling circuit to conduct a gate current to thus render the thyristor conductive at a firing time during a half cycle of the AC power source, and to allow the gate coupling circuit to conduct the gate current at any time from the firing time through approximately the remainder of the half cycle, where the gate coupling circuit conducts approximately no net average current to render and maintain the thyristor conductive.
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公开(公告)号：US10158300B2
公开(公告)日：2018-12-18
申请号：US15852328
申请日：2017-12-22
IPC分类号： H02M1/06 , H02M1/08 , G05F1/455 , H02M7/06 , H05B33/08 , H05B39/04 , H05B37/02 , H05B41/392 , H02M7/155 , H02M7/217
摘要： A two-wire load control device (such as, a dimmer switch) for controlling the amount of power delivered from an AC power source to an electrical load (such as, a high-efficiency lighting load) includes a thyristor coupled between the source and the load, a gate coupling circuit coupled between a first main load terminal and the gate of the thyristor, and a control circuit coupled to a control input of the gate coupling circuit. The control circuit generates a drive voltage for causing the gate coupling circuit to conduct a gate current to thus render the thyristor conductive at a firing time during a half cycle of the AC power source, and to allow the gate coupling circuit to conduct the gate current at any time from the firing time through approximately the remainder of the half cycle, where the gate coupling circuit conducts approximately no net average current to render and maintain the thyristor conductive.
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公开(公告)号：US20180131288A1
公开(公告)日：2018-05-10
申请号：US15852328
申请日：2017-12-22
CPC分类号： H02M7/06 , H02M7/155 , H02M7/217 , H05B33/0815 , H05B33/0845 , H05B33/0848 , H05B37/02 , H05B39/04 , H05B39/044 , H05B39/048 , H05B41/3924 , Y02B20/346 , Y10S323/905
摘要： A two-wire load control device (such as, a dimmer switch) for controlling the amount of power delivered from an AC power source to an electrical load (such as, a high-efficiency lighting load) includes a thyristor coupled between the source and the load, a gate coupling circuit coupled between a first main load terminal and the gate of the thyristor, and a control circuit coupled to a control input of the gate coupling circuit. The control circuit generates a drive voltage for causing the gate coupling circuit to conduct a gate current to thus render the thyristor conductive at a firing time during a half cycle of the AC power source, and to allow the gate coupling circuit to conduct the gate current at any time from the firing time through approximately the remainder of the half cycle, where the gate coupling circuit conducts approximately no net average current to render and maintain the thyristor conductive.
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公开(公告)号：US20150108913A1
公开(公告)日：2015-04-23
申请号：US14581115
申请日：2014-12-23
CPC分类号： H02M7/06 , H02M7/155 , H02M7/217 , H05B33/0815 , H05B33/0845 , H05B33/0848 , H05B37/02 , H05B39/04 , H05B39/044 , H05B39/048 , H05B41/3924 , Y02B20/346 , Y10S323/905
摘要： A two-wire load control device (such as, a dimmer switch) for controlling the amount of power delivered from an AC power source to an electrical load (such as, a high-efficiency lighting load) includes a thyristor coupled between the source and the load, a gate coupling circuit coupled between a first main load terminal and the gate of the thyristor, and a control circuit coupled to a control input of the gate coupling circuit. The control circuit generates a drive voltage for causing the gate coupling circuit to conduct a gate current to thus render the thyristor conductive at a firing time during a half cycle of the AC power source, and to allow the gate coupling circuit to conduct the gate current at any time from the firing time through approximately the remainder of the half cycle, where the gate coupling circuit conducts approximately no net average current to render and maintain the thyristor conductive.
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