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1. 发明授权

US12074464B2 Systems and methods for Universal Serial Bus (USB) power delivery with multiple charging ports 有权
公开(公告)号：US12074464B2
公开(公告)日：2024-08-27
申请号：US17268935
申请日：2019-08-29
申请人： Leviton Manufacturing Company, Inc.
发明人： A. M. Sarwar Jahan , Levan Papismedov , Benjamin R. Weiss , Ronald Jansen , Desiree Thomas , William Randall , Ankit Milan Sanghvi
IPC分类号： H02J7/00 , H02J7/02
CPC分类号： H02J7/0013 , H02J7/00 , H02J7/00041 , H02J7/0019 , H02J7/02 , H02J7/00714 , H02J2207/20
摘要： A universal serial bus (USB) charging system includes a power supply including a plurality of power converters and a plurality of power supply outputs electrically coupled to the plurality of power converters, respectively. Each of the plurality of power converters is configured to convert an input voltage to a plurality of output voltages. A plurality of charging ports are electrically connected with the plurality of power supply outputs, respectively. Each of the plurality of charging ports is configured to provide an output voltage selected from the plurality of output voltages to an electronic device. A logic circuit is in electrical communication with the power supply and the plurality of charging ports. The logic circuit is configured to provide direct feedback to the power supply to output a particular output voltage of the plurality of output voltages to the plurality of charging ports.

2. 发明授权

US10856395B1 Lighting load classification and dimmer configuration based thereon 有权
公开(公告)号：US10856395B1
公开(公告)日：2020-12-01
申请号：US16444788
申请日：2019-06-18
申请人： Leviton Manufacturing Company, Inc.
发明人： A M Sarwar Jahan , Wen Gu , Tianjian Huang
IPC分类号： H05B47/175 , G06N20/00
摘要： A machine learning model for classifying different lighting loads based on properties of electrical current through the loads is built. The model is applied to electrical data gathered based on powering a target lighting load in order to classify the load. Based on load classification, operating parameter(s) to control operation of a dimmer to control power to the load are selected and the dimmer is configured with the selected parameter(s) to achieve desired dimmer operation in dimming the load.

3. 发明申请

US20200091758A1 SYSTEMS AND METHODS FOR UNIVERSAL SERIAL BUS (USB) POWER DELIVERY WITH MULTIPLE CHARGING PORTS 审中-公开
公开(公告)号：US20200091758A1
公开(公告)日：2020-03-19
申请号：US16134288
申请日：2018-09-18
申请人： Leviton Manufacturing Company, Inc.
发明人： A. M. Sarwar Jahan , Levan Papismedov , Tint Y. Aung
IPC分类号： H02J7/04 , H02J7/00
摘要： Systems and methods for universal serial bus (USB) power delivery with multiple charging ports or connectors to charge multiple electronic devices. The systems include a power supply having converter(s) that converts an input voltage to different output voltages and outputs; charging ports electrically coupled to the power supply outputs; and a controller electrically coupled to the power supply and the charging ports or connectors. Each of the charging ports is configured to connect to and provide an output voltage selected from the different output voltages to an electronic device. The controller communicates or publishes information regarding the different output voltage levels that can be provided by the power supply to the electronic devices; receives voltage levels selected by the electronic devices via the charging ports; and controls the power supply to provide the selected voltages to the first and second device, respectively.

4. 发明申请

US20190285668A1 MULTIPLE CORE TRANSFORMER ASSEMBLY 审中-公开
公开(公告)号：US20190285668A1
公开(公告)日：2019-09-19
申请号：US16434409
申请日：2019-06-07
申请人： Leviton Manufacturing Company, Inc.
发明人： Ronald Jansen , Michael Kamor , Michael Ostrovsky , Alfred J. Lombardi
IPC分类号： G01R15/18 , H01H1/00 , G01R31/02 , H02H3/16 , H01H83/14 , G01R19/00 , H01F41/02 , H01F17/04
摘要： A circuit interrupting device includes a grounded neutral transformer core, a high frequency transformer core, and a differential transformer core nested within the grounded neutral transformer core and/or the high frequency transformer core. The grounded neutral transformer core and the high frequency transformer core are disposed in a stacked configuration with one another.

5. 发明申请

US20180063928A1 SYSTEM FOR PREVENTING EXCESSIVE CABLE HEATING IN POWER OVER ETHERNET-BASED LIGHTING SYSTEMS 审中-公开
公开(公告)号：US20180063928A1
公开(公告)日：2018-03-01
申请号：US15670721
申请日：2017-08-07
申请人： Leviton Manufacturing Company, Inc.
发明人： Robert L. Hick
IPC分类号： H05B37/02 , H05B33/08
CPC分类号： H05B37/0263 , H04L12/10 , H04L12/40 , H05B33/0815 , H05B33/0854 , H05B37/0254
摘要： A system is disclosed for controlling operation of an LED lighting system, including a Power over Ethernet (PoE) LED driver couplable to a PoE switch via a power and communication link. The PoE LED driver includes a microcontroller for controlling an LED driver chip to operate an associated LED lighting fixture. A voltage and current measurement unit is coupled to the microcontroller to receive power from the power and communication link, and to provide signals to the microcontroller. The provided signals can be representative of an input electrical parameter of the power and communication link. The microcontroller is programmed to compare the signals representative of the input electrical parameter against a predetermined value, and command operation of the LED driver chip based on the comparison.

6. 发明授权

US09271375B2 System and method for occupancy sensing with enhanced functionality 有权
标题翻译：具有增强功能的占用感测系统和方法
公开(公告)号：US09271375B2
公开(公告)日：2016-02-23
申请号：US13775534
申请日：2013-02-25
申请人： Leviton Manufacturing Company, Inc.
发明人： Jaiganesh Balasubramanian , Justin Morton , Subramanian Muthu
IPC分类号： H05B37/02
CPC分类号： H05B37/0227 , F21S8/006 , H05B37/02 , H05B37/0218 , H05B37/0272 , H05B37/03 , Y02B20/46
摘要： A system and method are disclosed for providing fail-safe operation of a lighting system. A lighting level detector is used to obtain a baseline lighting level for a low-intensity light. If the detector measures less than the baseline level when an occupancy sensor determines the space is unoccupied, a high-intensity light is energized and an indication is provided to a user that the low-intensity light has failed. A method is also disclosed for daylighting operation of a lighting system. An occupancy sensor can have Wi-Fi functionality to enable remote configuration of the sensor. A line voltage occupancy sensor can include an interface with low voltage devices. An occupancy sensor can include an integral interface to enable an external control system to override the sensor's normal logic under emergency conditions. An occupancy sensor can include an active temperature compensation feature. An occupancy sensor can also incorporate an automatically adjustable coverage area.
摘要翻译：公开了一种用于提供照明系统的故障安全操作的系统和方法。照明电平检测器用于获得低强度光的基线照明水平。如果当占用传感器确定空间未被占用时，检测器测量小于基准电平，则高强度光被激发，并且向用户提供低强度光已经失败的指示。还公开了一种用于照明系统的采光操作的方法。占用传感器可以具有Wi-Fi功能，可以远程配置传感器。线路电压占用传感器可以包括具有低电压装置的接口。占用传感器可以包括集成接口，以使得外部控制系统可以在紧急情况下覆盖传感器的正常逻辑。占用传感器可以包括有源温度补偿特征。占用传感器还可以包括自动调整的覆盖区域。

7. 发明申请

US20140239817A1 System and Method for Occupancy Sensing with Enhanced Functionality 有权
标题翻译：具有增强功能的占用感知系统和方法
公开(公告)号：US20140239817A1
公开(公告)日：2014-08-28
申请号：US13775534
申请日：2013-02-25
申请人： LEVITON MANUFACTURING COMPANY, INC.
发明人： Richard A. Leinen , Jaiganesh Balasubramanian , Justin Morton , Subramanian Muthu , Robert Hick , John Elzie , Brian Carberry , David Buerer
IPC分类号： H05B37/02
CPC分类号： H05B37/0227 , F21S8/006 , H05B37/02 , H05B37/0218 , H05B37/0272 , H05B37/03 , Y02B20/46
摘要： A system and method are disclosed for providing fail-safe operation of a lighting system. A lighting level detector is used to obtain a baseline lighting level for a low-intensity light. If the detector measures less than the baseline level when an occupancy sensor determines the space is unoccupied, a high-intensity light is energized and an indication is provided to a user that the low-intensity light has failed. A method is also disclosed for daylighting operation of a lighting system. An occupancy sensor can have Wi-Fi functionality to enable remote configuration of the sensor. A line voltage occupancy sensor can include an interface with low voltage devices. An occupancy sensor can include an integral interface to enable an external control system to override the sensor's normal logic under emergency conditions. An occupancy sensor can include an active temperature compensation feature. An occupancy sensor can also incorporate an automatically adjustable coverage area.
摘要翻译：公开了一种用于提供照明系统的故障安全操作的系统和方法。照明电平检测器用于获得低强度光的基线照明水平。如果当占用传感器确定空间未被占用时，检测器测量小于基准电平，则高强度光被激发，并且向用户提供低强度光已经失败的指示。还公开了一种用于照明系统的采光操作的方法。占用传感器可以具有Wi-Fi功能，可以远程配置传感器。线路电压占用传感器可以包括具有低电压器件的接口。占用传感器可以包括集成接口，以使得外部控制系统可以在紧急情况下覆盖传感器的正常逻辑。占用传感器可以包括有源温度补偿特征。占用传感器还可以包括自动调整的覆盖区域。

8. 发明授权

US10568185B1 Two-wire dimmer operation 有权
公开(公告)号：US10568185B1
公开(公告)日：2020-02-18
申请号：US16515222
申请日：2019-07-18
申请人： Leviton Manufacturing Company, Inc.
发明人： Michael Ostrovsky , Alan Neal , Alfred Lombardi
IPC分类号： H05B37/02 , H05B33/08
摘要： Two-wire dimmer operation includes applying first and second control pulses to a switching circuit controlled between ON and OFF states, the first control pulse beginning at a first starting time and extending for a first duration of time that ends at a first ending time, and the second control pulse beginning at a second starting time, after the first ending time, and extending for a second duration of time that ends at a second ending time, detecting levels of current provided to a lighting load during the first duration of time and during the second duration of time, comparing current levels determined based on applying the first and second control pulses, based on the comparing, ascertaining a load type of the lighting load, and selecting, based on the ascertained load type, parameters that control dimming operation of the dimmer.

9. 发明申请

US20190383871A1 GROUND FAULT DETECTOR 审中-公开
公开(公告)号：US20190383871A1
公开(公告)日：2019-12-19
申请号：US16557455
申请日：2019-08-30
申请人： Leviton Manufacturing Company, Inc
发明人： Michael OSTROVSKY , Alek Aronov , Michael Kamor , Renjith Mathew
IPC分类号： G01R31/02 , H02H3/33 , G01R35/00 , G01R31/327
摘要： An apparatus includes an interruption circuit in a power delivery path, and a fault detection circuit configured to provide a fault signal to selectively cause the interruption circuit to interrupt power delivery, wherein the fault detection circuit includes a fault detection integrated circuit and a sensing coil configured to sense a differential current between a phase conductive path and a neutral conductive path in the power delivery path. A processor is configured to selectively control a fault simulation circuit to simulate a fault in the power delivery path, detect a response of the fault detection circuit to the simulated fault, and determine if the response of the fault detection circuit is an expected response. The processor provides an override signal to the interruption circuit to prevent the interruption circuit from receiving a fault signal from the fault detection circuit during, and for a predetermined time after, the simulated fault.

10. 发明申请

US20190356127A1 ARC FAULT CIRCUIT INTERRUPTER 审中-公开
公开(公告)号：US20190356127A1
公开(公告)日：2019-11-21
申请号：US16524728
申请日：2019-07-29
申请人： Leviton Manufacturing Company, Inc.
发明人： Michael OSTROVSKY , John LIBRETTO , Ronald JANSEN , Michael KAMOR , Adam KEVELOS
IPC分类号： H02H3/16 , H02H3/04 , G01R31/02 , G08B21/18 , H02H1/00
摘要： An arc fault circuit interrupter is disclosed. This arc fault circuit interrupter can include any one or more of three different sensors such as a high frequency sensor, and any one of lower frequency sensors such as a current sensor or a differential sensor. The arc fault circuit interrupter can be configured as an in line arc fault circuit interrupter installed in a wall box. In addition, the arc fault circuit interrupter can include a processor configured to determine any one of a series arc fault, or a parallel arc fault.

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