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公开(公告)号：US10893598B2
公开(公告)日：2021-01-12
申请号：US16257291
申请日：2019-01-25
Applicant: Osram Sylvania Inc. , Osram GmbH
Inventor： Barry Stout , Henry Feil , Nitin Kumar
IPC: H05B47/20 , H04B10/116 , G01S1/04 , H04B10/114 , H05B47/19 , H04W4/02
Abstract: The systems and method disclosed herein include a LCom-enabled luminaire configured to transmit a maintenance trigger encoded in an LCom signal in response to detecting an error or maintenance condition in the LCom-enabled luminaire, receive an access request, transmit maintenance information in response to the access request, and receive correction information to correct the error or maintenance condition. The systems and methods further include a receiver device configured to receive the maintenance trigger, generate the access request based on the maintenance trigger, transmit the access request to the LCom-enabled luminaire, receive maintenance information in response to the access request, and transmit control commands based on the maintenance information.
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公开(公告)号：US20200245424A1
公开(公告)日：2020-07-30
申请号：US16257291
申请日：2019-01-25
Applicant: Osram Sylvania Inc. , Osram GmbH
Inventor： Barry Stout , Henry Feil , Nitin Kumar
IPC: H05B37/03 , H04B10/116 , H05B37/02 , G01S1/04 , H04B10/114
Abstract: The systems and method disclosed herein include a LCom-enabled luminaire configured to transmit a maintenance trigger encoded in an LCom signal in response to detecting an error or maintenance condition in the LCom-enabled luminaire, receive an access request, transmit maintenance information in response to the access request, and receive correction information to correct the error or maintenance condition. The systems and methods further include a receiver device configured to receive the maintenance trigger, generate the access request based on the maintenance trigger, transmit the access request to the LCom-enabled luminaire, receive maintenance information in response to the access request, and transmit control commands based on the maintenance information.
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公开(公告)号：US09992846B2
公开(公告)日：2018-06-05
申请号：US15552232
申请日：2016-02-25
Applicant: OSRAM SYLVANIA Inc.
Inventor： Jinsheng Wei , Andrew Johnsen , Ranjit Jayabalan , Nitin Kumar
IPC: H05B37/02
CPC classification number: H05B37/0209 , H05B33/0815 , H05B33/0842
Abstract: An active damping circuit and system including the same are disclosed. The active damping circuit includes a first resistor, a second resistor, a third resistor, a first transistor, a second transistor, a capacitor, and a microcontroller. The first resistor is connected to a base of the first transistor, and to the microcontroller output. The second resistor is connected to a positive voltage, and to a collector of the first transistor and a gate of the second transistor. The third resistor is connected to a logic ground, and to a source of the second transistor. The capacitor is connected to the collector of the first transistor, the second resistor, and the gate of the second transistor. A drain of the second transistor, and the first capacitor, and the second capacitor, and the microcontroller output, are also connected to the logic ground. An emitter of the first transistor is connected to ground.
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Patent Agency Ranking
公开(公告)号：US10588186B2
公开(公告)日：2020-03-10
申请号：US15641318
申请日：2017-07-04
Applicant: OSRAM SYLVANIA Inc.
Inventor： Nitin Kumar , Markus Ziegler , Naveen Tumula , Thomas Schalton
Abstract: A driver port that provides selectable output currents based on connections thereto, and a driver including the same, is provided. A plurality of shunt resistors are connected in series between a negative output of a driver and a ground. A driver port having a plurality of connection points is provided, each respective connection point connected to a different connection between two of the plurality of shunt resistors. A load including one or more solid state light sources is capable of being connected between one of the connection points of the driver port and a positive output of the driver.
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公开(公告)号：US10225908B2
公开(公告)日：2019-03-05
申请号：US15552241
申请日：2016-02-25
Applicant: OSRAM SYLVANIA Inc.
Inventor： Jinsheng Wei , Andrew Johnsen , Ranjit Jayabalan , Nitin Kumar
Abstract: An active damping circuit is disclosed, which includes a peak current limiter, a drain source voltage limiter, a turn-on driver, a resistor shunt circuit, and a peak current sensor. The peak current sensor detects a rising edge of an input voltage from a phase cut dimmer by detecting a higher peak current. This drives a collector voltage of a second transistor of the peak current limiter low, which lowers a gate voltage of a first transistor of the peak current sensor, and forces it into a linear operating region, so it functions as a damping resistor. When the peak current sensor detects a decreased peak current, such that the turn-on edge of the input voltage is passed, the second transistor turns off, and the turn-on driver turns the first transistor on, such that the active damping circuit is waiting for a next edge of the input voltage.
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公开(公告)号：US09301375B2
公开(公告)日：2016-03-29
申请号：US14064837
申请日：2013-10-28
Applicant: OSRAM SYLVANIA Inc.
Inventor： Nitin Kumar , Markus Ziegler , Shashank Bakre , Ayan Choudhury
CPC classification number: H05B41/16 , H01J65/048 , H05B41/2806 , Y02B20/22
Abstract: A multi-strike ballast to ignite an electrodeless lamp is disclosed, and includes an inverter circuit, a protection circuit, and a controller. The inverter circuit, upon activation, sends an ignition pulse to the lamp. The inverter circuit shuts down upon receiving a deactivation signal, and activates upon receiving an activation signal, triggering another ignition pulse. The protection circuit senses a change in a voltage associated with the lamp. The sensed changed may indicate that the lamp has not yet ignited or that the lamp is broken. The controller receives the sensed change in voltage and, in response, sends a deactivation signal to the inverter circuit. The controller waits a predetermined time and then sends an activation signal to the inverter circuit. The controller repeats until a change in voltage associated with the lamp is not sensed, or until a predefined number of repeats occur, providing multiple ignition pulses to the lamp.
Abstract translation: 公开了一种点燃无电极灯的多冲击镇流器，包括逆变器电路，保护电路和控制器。 逆变器电路在激活时向灯发出点火脉冲。 逆变器电路在接收到去激活信号时关闭，并在接收到激活信号时激活，触发另一个点火脉冲。 保护电路检测与灯相关的电压的变化。 所感测到的变化可能指示灯还没有被点燃或灯被破坏。 控制器接收感测到的电压变化，作为响应，向逆变器电路发送去激活信号。 控制器等待预定时间，然后将激活信号发送到逆变器电路。 控制器重复，直到没有检测到与灯相关的电压变化，或直到发生预定数量的重复，向灯提供多个点火脉冲。
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公开(公告)号：US20180098395A1
公开(公告)日：2018-04-05
申请号：US15552241
申请日：2016-02-25
Applicant: OSRAM SYLVANIA Inc.
Inventor： Jinsheng Wei , Andrew Johnsen , Ranjit Jayabalan , Nitin Kumar
IPC: H05B33/08
CPC classification number: H05B37/0209 , H05B33/0815 , H05B33/0842
Abstract: An active damping circuit is disclosed, which includes a peak current limiter, a drain source voltage limiter, a turn-on driver, a resistor shunt circuit, and a peak current sensor. The peak current sensor detects a rising edge of an input voltage from a phase cut dimmer by detecting a higher peak current. This drives a collector voltage of a second transistor of the peak current limiter low, which lowers a gate voltage of a first transistor of the peak current sensor, and forces it into a linear operating region, so it functions as a damping resistor. When the peak current sensor detects a decreased peak current, such that the turn-on edge of the input voltage is passed, the second transistor turns off, and the turn-on driver turns the first transistor on, such that the active damping circuit is waiting for a next edge of the input voltage.
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公开(公告)号：US20180042084A1
公开(公告)日：2018-02-08
申请号：US15552232
申请日：2016-02-25
Applicant: OSRAM SYLVANIA Inc.
Inventor： Jinsheng Wei , Andrew Johnsen , Ranjit Jayabalan , Nitin Kumar
IPC: H05B37/02
CPC classification number: H05B37/0209 , H05B33/0815 , H05B33/0842
Abstract: An active damping circuit and system including the same are disclosed. The active damping circuit includes a first resistor, a second resistor, a third resistor, a first transistor, a second transistor, a capacitor, and a microcontroller. The first resistor is connected to a base of the first transistor, and to the microcontroller output. The second resistor is connected to a positive voltage, and to a collector of the first transistor and a gate of the second transistor. The third resistor is connected to a logic ground, and to a source of the second transistor. The capacitor is connected to the collector of the first transistor, the second resistor, and the gate of the second transistor. A drain of the second transistor, and the first capacitor, and the second capacitor, and the microcontroller output, are also connected to the logic ground. An emitter of the first transistor is connected to ground.
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