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公开(公告)号：US11991796B2
公开(公告)日：2024-05-21
申请号：US18184762
申请日：2023-03-16
IPC分类号： H05B39/04 , H02M7/06 , H02M7/155 , H02M7/217 , H05B41/392 , H05B45/10 , H05B45/14 , H05B45/37 , H05B47/10 , H05B47/19 , H05B45/315
CPC分类号： H05B39/04 , H02M7/06 , H02M7/155 , H02M7/217 , H05B39/044 , H05B39/048 , H05B41/3924 , H05B45/10 , H05B45/14 , H05B45/37 , H05B47/10 , H05B47/19 , H05B45/315 , Y02B20/30 , 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：US11317484B2
公开(公告)日：2022-04-26
申请号：US17262294
申请日：2019-07-22
发明人： Kengo Miyamoto , Shogo Kajiwara
IPC分类号： H05B45/10 , H05B45/40 , H05B45/315 , H02M5/293 , H02M7/06
摘要： In a load control system as described, each of a plurality of switch circuits includes a switch electrically connected between an associated one second terminal out of a plurality of second terminals and a first terminal. A control circuit controls the switch that each of the plurality of switch circuits includes and thereby controls supply of power to a load associated with each of the plurality of switch circuits. A power supply circuit is electrically connected between the plurality of second terminals and the first terminal and receives power from a power supply via the first terminal and at least one second terminal out of the plurality of second terminals and thereby generates power to be supplied to at least the control circuit.
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公开(公告)号：US11382204B2
公开(公告)日：2022-07-05
申请号：US17026429
申请日：2020-09-21
发明人： Daniel C. Raneri
IPC分类号： H05B47/185 , H05B47/19 , H05B45/315 , H05B47/195
摘要： A multiple location dimming system may include a smart dimmer (e.g., a main load control device) and one or more remote dimmers (e.g., accessory devices) for controlling the amount of power delivered to a lighting load. The multiple location dimming system may be installed in place of a multiple location switch system (e.g., having three, four, or more multi-way switches), and may not require a neutral connection at any of the control devices of the multiple location dimming system. The main load control device and the accessory devices of the multiple location dimming system may be configured to display a present intensity level of a lighting load on one or more visual indicators. The accessory devices may have the same or different user interfaces as the main load control device, and may provide additional functionality over that which the main load control device offers.
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公开(公告)号：US20210144826A1
公开(公告)日：2021-05-13
申请号：US17059245
申请日：2019-05-22
申请人： King Kuen Hau
发明人： King Kuen Hau
IPC分类号： H05B45/315 , H05B39/08 , H05B39/04
摘要： Disclosed is a phase-cut dimmer, comprising an AC switch coupled in series between an AC supply and a load; a DC power supply powered from a voltage across the switch; a zero-crossing detector of a phase-cut AC voltage across the switch; a timer generating a timing signal of a duty-cycle proportional to a variable fraction of a peak voltage of a sawtooth signal, wherein the sawtooth signal is synchronized to the zero-crossing detector; a blanking signal generator triggered by a duty-cycle detector to reduce the duty-cycle when the duty-cycle of the timing signal exceeds a predetermined maximum limit; and an operation mode selector activated by an output of an inductive load detector.
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公开(公告)号：US20240130016A1
公开(公告)日：2024-04-18
申请号：US18539341
申请日：2023-12-14
申请人： Jianhua Liang
发明人： Jianhua Liang
IPC分类号： H05B45/24 , H05B45/315 , H05B45/325 , H05B45/355
CPC分类号： H05B45/24 , H05B45/315 , H05B45/325 , H05B45/355
摘要： The present disclosure discloses a multifunctional dimmable driving power supply, including an alternating current (AC) input, a high-power factor correction circuit, an AC/direct current (DC) conversion circuit, a load, a phase-cut input signal, an analog input signal, a micro control unit (MCU) control module, a multishift switching device, a metal oxide semiconductor field effect transistor (MOSFET) driving circuit, a rotational potentiometer, and a temperature sensor module. The multishift switching device on the power supply is used to select different frequency outputs, switch different color temperature values, and select different curve outputs, so that the multifunctional dimmable driving power supply has high universality.
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公开(公告)号：US11743997B2
公开(公告)日：2023-08-29
申请号：US17855883
申请日：2022-07-01
发明人： Daniel C. Raneri
IPC分类号： H05B47/185 , H05B47/19 , H05B45/315 , H05B47/195
CPC分类号： H05B47/185 , H05B47/19 , H05B45/315 , H05B47/195
摘要： A multiple location dimming system may include a smart dimmer (e.g., a main load control device) and one or more remote dimmers (e.g., accessory devices) for controlling the amount of power delivered to a lighting load. The multiple location dimming system may be installed in place of a multiple location switch system (e.g., having three, four, or more multi-way switches), and may not require a neutral connection at any of the control devices of the multiple location dimming system. The main load control device and the accessory devices of the multiple location dimming system may be configured to display a present intensity level of a lighting load on one or more visual indicators. The accessory devices may have the same or different user interfaces as the main load control device, and may provide additional functionality over that which the main load control device offers.
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公开(公告)号：US20210274611A1
公开(公告)日：2021-09-02
申请号：US17262294
申请日：2019-07-22
发明人： Kengo MIYAMOTO , Shogo KAJIWARA
IPC分类号： H05B45/10 , H05B45/315 , H02M5/293 , H02M7/06 , H05B45/40
摘要： In a load control system as described, each of a plurality of switch circuits includes a switch electrically connected between an associated one second terminal out of a plurality of second terminals and a first terminal. A control circuit controls the switch that each of the plurality of switch circuits includes and thereby controls supply of power to a load associated with each of the plurality of switch circuits. A power supply circuit is electrically connected between the plurality of second terminals and the first terminal and receives power from a power supply via the first terminal and at least one second terminal out of the plurality of second terminals and thereby generates power to be supplied to at least the control circuit.
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