-
公开(公告)号：US20200084852A1
公开(公告)日：2020-03-12
申请号：US16683723
申请日：2019-11-14
Applicant: Lutron Technology Company LLC
Inventor： Stuart W. DeJonge , Steven J. Kober , Mark S. Taipale
Abstract: A load control device (e.g., an LED driver) for controlling the intensity of a lighting load (e.g., an LED light source) may provide a wide output range and flicker-free adjustment of the intensity of the lighting load. The load control device may comprise a load regulation circuit, a control circuit, and a filter circuit (e.g., a boxcar filter circuit) that operates in a different manner in dependence upon a target current. When the intensity of the lighting load is near a low-end intensity, the control circuit may adjust an operating frequency of the load regulation circuit in response to the target current, and may control the filter circuit to filter a current feedback signal during a filter window that repeats on periodic basis. When the intensity of the lighting load is near a high-end intensity, the control circuit may control the filter circuit to constantly filter the current feedback signal.
-
公开(公告)号：US20200037408A1
公开(公告)日：2020-01-30
申请号：US16526629
申请日：2019-07-30
Applicant: Lutron Technology Company LLC
Inventor： Stuart W. DeJonge
IPC: H05B33/08
Abstract: A load control device may utilize a feedback signal representative of an average magnitude of the load current conducted through an electrical load to control the amount of power delivered to the electrical load. The feedback signal may be generated based on a sense signal that is electrically isolated from the line voltage input of the load control device. Depending on the operational characteristics of the electrical load, the feedback signal may be generated using different techniques. In one example technique, the sense signal may be integrated and filtered to derive the feedback signal. In another example technique, the sense signal may be used in conjunction with an input power of the load control device and an efficiency parameter of the load control device to derive the feedback signal. In yet another example technique, values derived from the foregoing two techniques may be blended together to obtain the feedback signal.
-
公开(公告)号：US10517154B2
公开(公告)日：2019-12-24
申请号：US16278293
申请日：2019-02-18
Applicant: Lutron Technology Company LLC
Inventor： Stuart W. DeJonge , Steven J. Kober , Mark S. Taipale
Abstract: A load control device (e.g., an LED driver) for controlling the intensity of a lighting load (e.g., an LED light source) may provide a wide output range and flicker-free adjustment of the intensity of the lighting load. The load control device may comprise a load regulation circuit, a control circuit, and a filter circuit (e.g., a boxcar filter circuit) that operates in a different manner in dependence upon a target current. When the intensity of the lighting load is near a low-end intensity, the control circuit may adjust an operating frequency of the load regulation circuit in response to the target current, and may control the filter circuit to filter a current feedback signal during a filter window that repeats on periodic basis. When the intensity of the lighting load is near a high-end intensity, the control circuit may control the filter circuit to constantly filter the current feedback signal.
-
公开(公告)号：US20190364629A1
公开(公告)日：2019-11-28
申请号：US16532365
申请日：2019-08-05
Applicant: Lutron Technology Company LLC
Inventor： Robert C. Newman, JR. , Stuart W. DeJonge
IPC: H05B33/08
Abstract: A load control device for controlling power delivered from a power source to an electrical load may comprise a control circuit configured to control the load regulation circuit to control the power delivered to the electrical load. The control circuit may be configured to operate in an AC mode when an input voltage is an AC voltage and in a DC mode when the input voltage is a DC voltage. The control circuit may be configured to disable the power converter in the DC mode. The control circuit may be configured to render a controllable switching circuit conductive in the AC mode, and non-conductive in the DC mode. The rectifier circuit may be configured to rectify the input voltage to generate a rectified voltage when the input voltage is an AC voltage, and to pass through the input voltage when the input voltage is a DC voltage.
-
公开(公告)号：US20240381507A1
公开(公告)日：2024-11-14
申请号：US18784017
申请日：2024-07-25
Applicant: Lutron Technology Company LLC
Inventor： Stuart W. DeJonge , Steven J. Kober , Mark S. Taipale
IPC: H05B45/44 , H05B45/10 , H05B45/3725 , H05B45/50 , H05B47/155
Abstract: A load control device (e.g., an LED driver) for controlling the intensity of a lighting load (e.g., an LED light source) may provide a wide output range and flicker-free adjustment of the intensity of the lighting load. The load control device may comprise a load regulation circuit, a control circuit, and a filter circuit (e.g., a boxcar filter circuit) that operates in a different manner in dependence upon a target current. When the intensity of the lighting load is near a low-end intensity, the control circuit may adjust an operating frequency of the load regulation circuit in response to the target current, and may control the filter circuit to filter a current feedback signal during a filter window that repeats on periodic basis. When the intensity of the lighting load is near a high-end intensity, the control circuit may control the filter circuit to constantly filter the current feedback signal.
-
Patent Agency Ranking
公开(公告)号：US20240183219A1
公开(公告)日：2024-06-06
申请号：US18442452
申请日：2024-02-15
Applicant: Lutron Technology Company LLC
Inventor： Andrew K. Cooney , Jordan H. Crafts , Stuart W. DeJonge , Galen E. Knode , Jonathan T. Lenz , Justin J. Mierta , Donald R. Mosebrook
CPC classification number: E06B9/38 , E06B9/32 , E06B9/322 , E06B9/68 , E06B9/70 , E06B9/72 , E06B2009/2625 , E06B9/62 , E06B2009/6818 , E06B2009/6872
Abstract: A low-power radio-frequency (RF) receiver is characterized by a decreased current consumption over prior art RF receivers, such that the RF receiver may be used in control devices, such as battery-powered motorized window treatments and two-wire dimmer switches. The RF receiver uses an RF sub-sampling technique to check for the RF signals and then put the RF receiver to sleep for a sleep time that is longer than a packet length of a transmitted packet to thus conserve battery power and lengthen the lifetime of the batteries. The RF receiver compares detected RF energy to a detect threshold that may be increased to decrease the sensitivity of the RF receiver and increase the lifetime of the batteries. After detecting that an RF signal is being transmitted, the RF receiver is put to sleep for a snooze time period that is longer than the sleep time and just slightly shorter than the time between two consecutive transmitted packets to further conserve battery power.
-
公开(公告)号：US11949281B2
公开(公告)日：2024-04-02
申请号：US18307924
申请日：2023-04-27
Applicant: Lutron Technology Company LLC
Inventor： Stuart W. DeJonge , Robert C. Newman, Jr. , Matthew W. Nuhfer , Michael W. Pessina , Thomas M. Shearer
Abstract: Systems and methods described herein provide examples of an electrical panel (e.g., a modular electrical panel) that is configured to control a plurality of electrical loads. The electrical panel may include a control circuit, memory, a communication circuit, and an alternating current (AC) line feed and/or a direct current (DC) line feed. The electrical panel may also include a plurality of power supplies and a plurality of control modules, where more than one control module is associated with each of the plurality of power supplies. Each control module may configured to receive DC power from the associated power supply and provide an output voltage to at least one electrical load. The electrical panel provides flexibility as to whether each stage of conversion, regulation, and/or control is performed at a control module located within the electrical panel or performed at an accessory module located at an electrical load.
-
公开(公告)号：US11930574B2
公开(公告)日：2024-03-12
申请号：US17750647
申请日：2022-05-23
Applicant: Lutron Technology Company LLC
Inventor： Stuart W. DeJonge , Robert C. Newman, Jr.
Abstract: A controllable lighting device may utilize a controllable impedance circuit to conduct a load current through an LED light source. The controllable impedance circuit may be coupled in series with a first switching device, which may be rendered conductive and non-conductive via a pulse-width modulated signal to adjust an average magnitude of the load current. The controllable lighting device may further comprise a control loop circuit that includes a second switching device. The second switching device may be rendered conductive and non-conductive in coordination with the first switching device to control when a feedback signal is provided to the control loop circuit and used to control the LED light source. The control loop circuit may be characterized by a time constant that is significantly greater than an operating period of the load current.
-
公开(公告)号：US11909204B2
公开(公告)日：2024-02-20
申请号：US16809508
申请日：2020-03-04
Applicant: Lutron Technology Company LLC
Inventor： Edward J. Blair , Joseph R. Parks , John H. Bull , Samuel F. Chambers , Stuart W. DeJonge
CPC classification number: H02J1/084 , H02J7/00032 , H02J7/00712
Abstract: A control system may include a direct-current (DC) power bus for charging (e.g., trickle charging) internal energy storage elements in control devices of the control system. For example, the control devices may be motorized window treatments configured to adjust a position of a covering material to control the amount of daylight entering a space. The system may include a DC power supply that may generate a DC voltage on the DC power bus. For example, the DC power bus may extend from the DC power supply around the perimeter of a floor of the building and may be connected to all of the motorized window treatments on the floor (e.g., in a daisy-chain configuration). Wiring the DC power bus in such a manner may dramatically reduce the installation labor and wiring costs of an installation, as well as decreasing the chance of a miswire.
-
公开(公告)号：US11753866B2
公开(公告)日：2023-09-12
申请号：US16055806
申请日：2018-08-06
Applicant: Lutron Technology Company LLC
Inventor： Andrew K. Cooney , Jordan H. Crafts , Stuart W. DeJonge , Galen E. Knode , Jonathan T. Lenz , Justin J. Mierta , Donald R. Mosebrook
CPC classification number: E06B9/38 , E06B9/32 , E06B9/322 , E06B9/68 , E06B9/70 , E06B9/72 , E06B9/62 , E06B2009/2625 , E06B2009/6818 , E06B2009/6872
Abstract: A motorized window treatment provides a low-cost solution for controlling the amount of daylight entering a space through a window. The window treatment includes a covering material, a drive shaft, at least one lift cord rotatably received around the drive shaft and connected to the covering material, and a motor coupled to the drive shaft for raising and lowering the covering material. The window treatment also includes a spring assist unit for assisting the motor by providing a torque that equals the torque provided by the weight on the cords that lift the covering material at a position midway between fully-open and fully-closed positions, which helps to minimize motor usage and conserve battery life if a battery is used to power the motorized window treatment. The window treatment may comprise a photosensor for measuring the amount of daylight outside the window and temperature sensors for measuring the temperatures inside and outside of the window. The position of the covering material may be automatically controlled in response to the photosensor and the temperature sensors to save energy, or may also be controlled in response to an infrared or radio-frequency remote control.
-
-
-
-
-
-
-
-
-
Search Results
76
records
(took 0.026 seconds)
