Patents by Inventor Soumya Kanta
Soumya Kanta has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11937348Abstract: A lamp including a light source including at least one string of light emitting diodes (LEDs) within a tube body; end caps having contacts on each end of the tube body; driver electronics within the tube body including a filament detector portion provided by a passive resistance capacitor (RC) circuit that simulates the filament load of a fluorescent lamp when installed into a ballast containing fixture; and a power level selector switch in communication with the driver electronics for selecting the power level for powering the light source.Type: GrantFiled: October 4, 2022Date of Patent: March 19, 2024Assignee: LEDVANCE LLCInventors: Soumya Kanta Ray, Anil Jeswani
-
Patent number: 11757282Abstract: A power system comprises a power source, a transmission line coupled to the power source through a circuit breaker, a shunt reactor coupled to the transmission line, and a current transformer connected in series with the shunt reactor. A method for controlling the circuit breaker of the power system comprises processing an output signal of the current transformer to obtain the voltage on the transmission line by determining a time derivative of a current sensed by the current transformer. The method further comprises performing, by at least one control or protection device, a control or protection operation (e.g., auto-reclosing) based on the determined time derivative of the current sensed by the current transformer.Type: GrantFiled: September 24, 2019Date of Patent: September 12, 2023Assignee: HITACHI ENERGY SWITZERLAND AGInventors: Michael Stanek, Soumya Kanta
-
Patent number: 11703193Abstract: A tube lamp including a light source including at least one string of light emitting diodes within a tube body; end caps having pin contacts on each end of the tube body; and driver electronics including a filament detector portion provided by a passive resistance capacitor (RC) circuit that simulates the filament load of a fluorescent lamp when installed into a ballast containing fixture. The tube lamp may also include a switch for selecting light characteristics for light emitted by the light source.Type: GrantFiled: March 31, 2021Date of Patent: July 18, 2023Assignee: LEDVANCE LLCInventors: Soumya Kanta Ray, Anil Jeswani
-
Publication number: 20230024095Abstract: A lamp including a light source including at least one string of light emitting diodes (LEDs) within a tube body; end caps having contacts on each end of the tube body; driver electronics within the tube body including a filament detector portion provided by a passive resistance capacitor (RC) circuit that simulates the filament load of a fluorescent lamp when installed into a ballast containing fixture; and a power level selector switch in communication with the driver electronics for selecting the power level for powering the light source.Type: ApplicationFiled: October 4, 2022Publication date: January 26, 2023Inventors: Soumya Kanta Ray, Anil Jeswani
-
Patent number: 11497091Abstract: A lamp including a light source including at least one string of light emitting diodes (LEDs) within a tube body; end caps having contacts on each end of the tube body; driver electronics within the tube body including a filament detector portion provided by a passive resistance capacitor (RC) circuit that simulates the filament load of a fluorescent lamp when installed into a ballast containing fixture: and a power level selector switch in communication with the driver electronics for selecting the power level for powering the light source.Type: GrantFiled: April 2, 2021Date of Patent: November 8, 2022Assignee: LEDVANCE LLCInventors: Soumya Kanta Ray, Anil Jeswani
-
Publication number: 20220316660Abstract: A tube lamp including a light source including at least one string of light emitting diodes within a tube body; end caps having pin contacts on each end of the tube body; and driver electronics including a filament detector portion provided by a passive resistance capacitor (RC) circuit that simulates the filament load of a fluorescent lamp when installed into a ballast containing fixture. The tube lamp may also include a switch for selecting light characteristics for light emitted by the light source.Type: ApplicationFiled: March 31, 2021Publication date: October 6, 2022Inventors: Soumya Kanta Ray, Anil Jeswani
-
Publication number: 20220322506Abstract: A lamp including a light source including at least one string of light emitting diodes (LEDs) within a tube body; end caps having contacts on each end of the tube body; driver electronics within the tube body including a filament detector portion provided by a passive resistance capacitor (RC) circuit that simulates the filament load of a fluorescent lamp when installed into a ballast containing fixture; and a power level selector switch in communication with the driver electronics for selecting the power level for powering the light source.Type: ApplicationFiled: April 2, 2021Publication date: October 6, 2022Inventors: Soumya Kanta Ray, Anil Jeswani
-
Patent number: 11437205Abstract: The invention relates to monitoring operation of a switching device in a power system, where a load is connected to a power source through the switching device. The load has windings, with coupling between at least one of two or more phases of a winding, and two or more windings of the load. The method includes obtaining measurements of at least one of voltages and currents, at one or more of a source and load side. Further, the method determines an electrical parameter associated with electrical switching of one or more poles. The parameter for each pole is determined based on at least one of voltage measurements at the source and load side, and line measurements associated with at least one winding. The values of the electrical parameter are monitored to determine the switching instant of the pole, for determining mechanical operating time deviation for estimating future switching instants.Type: GrantFiled: December 23, 2019Date of Patent: September 6, 2022Assignee: Hitachi Energy Switzerland AGInventors: Soumya Kanta, Urmil Parikh, Michael Stanek
-
Patent number: 11317492Abstract: A lamp is provided that can have at least one interface on the lamp body for a selectable lumens and selectable correlated color temperature (CCT). In one embodiment, the lamp design includes a housing having a downlight geometry and a light engine including at least one string of light emitting diodes (LEDs), in which the light engine is position to emit light through a light emission end of the housing having the downlight geometry. The lamp also includes at least one first switch for selecting at least one lumen setting for the light emitted by the light engine; and at least one second switch for selecting at least one correlated color temperature. The first and second switch are mounted to the housing.Type: GrantFiled: March 25, 2021Date of Patent: April 26, 2022Assignee: LEDVANCE LLCInventors: Anil Jeswani, Astrid van Breda, Ravidasa Hegde, Soumya Kanta Ray
-
Publication number: 20220102087Abstract: The invention relates to monitoring operation of a switching device in a power system, where a load is connected to a power source through the switching device. The load has windings, with coupling between at least one of two or more phases of a winding, and two or more windings of the load. The method includes obtaining measurements of at least one of voltages and currents, at one or more of a source and load side. Further, the method determines an electrical parameter associated with electrical switching of one or more poles. The parameter for each pole is determined based on at least one of voltage measurements at the source and load side, and line measurements associated with at least one winding. The values of the electrical parameter are monitored to determine the switching instant of the pole, for determining mechanical operating time deviation for estimating future switching instants.Type: ApplicationFiled: December 23, 2019Publication date: March 31, 2022Inventors: Soumya Kanta, Urmil Parikh, Michael Stanek
-
Patent number: 11255530Abstract: A lamp including a light source having at least one string of light emitting diodes on a printed circuit board present within a tube body; and end caps having a G13 pin layout on each end of the tube body. The lamp may further include an electrical isolation switch mounted on at least one of the end caps, wherein the electrical isolation switch provides shock protection from the lamp when installed into a ballast free fixture. The lamp may further include driver electronics having a filament detector portion provided by a passive resistance capacitor (RC) circuit that simulates the filament load of a fluorescent lamp when installed into a ballast containing fixture.Type: GrantFiled: January 13, 2021Date of Patent: February 22, 2022Assignee: LEDVANCE LLCInventors: Soumya Kanta Ray, Anil Jeswani, Robert Harrison
-
Publication number: 20220037879Abstract: A power system comprises a power source, a transmission line coupled to the power source through a circuit breaker, a shunt reactor coupled to the transmission line, and a current transformer connected in series with the shunt reactor. A method for controlling the circuit breaker of the power system comprises processing an output signal of the current transformer to obtain the voltage on the transmission line by determining a time derivative of a current sensed by the current transformer. The method further comprises performing, by at least one control or protection device, a control or protection operation (e.g., auto-reclosing) based on the determined time derivative of the current sensed by the current transformer.Type: ApplicationFiled: September 24, 2019Publication date: February 3, 2022Inventors: Michael Stanek, Soumya Kanta
-
Publication number: 20210207778Abstract: A lamp is provided that can have at least one interface on the lamp body for a selectable lumens and selectable correlated color temperature (CCT). In one embodiment, the lamp design includes a housing having a downlight geometry and a light engine including at least one string of light emitting diodes (LEDs), in which the light engine is position to emit light through a light emission end of the housing having the downlight geometry. The lamp also includes at least one first switch for selecting at least one lumen setting for the light emitted by the light engine; and at least one second switch for selecting at least one correlated color temperature. The first and second switch are mounted to the housing.Type: ApplicationFiled: March 25, 2021Publication date: July 8, 2021Inventors: Anil Jeswani, Astrid van Breda, Ravidasa Hegde, Soumya Kanta Ray
-
Publication number: 20210131655Abstract: A lamp including a light source having at least one string of light emitting diodes on a printed circuit board present within a tube body; and end caps having a G13 pin layout on each end of the tube body. The lamp may further include an electrical isolation switch mounted on at least one of the end caps, wherein the electrical isolation switch provides shock protection from the lamp when installed into a ballast free fixture. The lamp may further include driver electronics having a filament detector portion provided by a passive resistance capacitor (RC) circuit that simulates the filament load of a fluorescent lamp when installed into a ballast containing fixture.Type: ApplicationFiled: January 13, 2021Publication date: May 6, 2021Inventors: Soumya Kanta Ray, Anil Jeswani, Robert Harrison
-
Patent number: 10982821Abstract: A lamp is provided that can have at least one interface on the lamp body for a selectable lumens and selectable correlated color temperature (CCT). In one embodiment, the lamp design includes a housing having a downlight geometry and a light engine including at least one string of light emitting diodes (LEDs), in which the light engine is position to emit light through a light emission end of the housing having the downlight geometry. The lamp also includes at least one first switch for selecting at least one lumen setting for the light emitted by the light engine; and at least one second switch for selecting at least one correlated color temperature. The first and second switch are mounted to the housing.Type: GrantFiled: April 30, 2020Date of Patent: April 20, 2021Assignee: LEDVANCE LLCInventors: Anil Jeswani, Astrid van Breda, Ravidasa Hegde, Soumya Kanta Ray
-
Patent number: 10920972Abstract: A lamp including a light source having at least one string of light emitting diodes on a printed circuit board present within a tube body; and end caps having a G13 pin layout on each end of the tube body. The lamp may further include an electrical isolation switch mounted on at least one of the end caps, wherein the electrical isolation switch provides shock protection from the lamp when installed into a ballast free fixture. The lamp may further include driver electronics having a filament detector portion provided by a passive resistance capacitor (RC) circuit that simulates the filament load of a fluorescent lamp when installed into a ballast containing fixture.Type: GrantFiled: May 6, 2019Date of Patent: February 16, 2021Assignee: LEDVANCE LLCInventors: Soumya Kanta Ray, Anil Jeswani, Robert Harrison
-
Publication number: 20200263840Abstract: A lamp is provided that can have at least one interface on the lamp body for a selectable lumens and selectable correlated color temperature (CCT). In one embodiment, the lamp design includes a housing having a downlight geometry and a light engine including at least one string of light emitting diodes (LEDs), in which the light engine is position to emit light through a light emission end of the housing having the downlight geometry. The lamp also includes at least one first switch for selecting at least one lumen setting for the light emitted by the light engine; and at least one second switch for selecting at least one correlated color temperature. The first and second switch are mounted to the housing.Type: ApplicationFiled: April 30, 2020Publication date: August 20, 2020Applicant: LEDVANCE LLCInventors: Anil Jeswani, Astrid van Breda, Ravidasa Hegde, Soumya Kanta Ray
-
Patent number: 10683969Abstract: A lamp is provided that can have at least one interface on the lamp body for a selectable lumens and selectable correlated color temperature (CCT). In one embodiment, the lamp design includes a housing having a downlight geometry and a light engine including at least one string of light emitting diodes (LEDs), in which the light engine is position to emit light through a light emission end of the housing having the downlight geometry. The lamp also includes at least one first switch for selecting at least one lumen setting for the light emitted by the light engine; and at least one second switch for selecting at least one correlated color temperature. The first and second switch are mounted to the housing.Type: GrantFiled: May 7, 2018Date of Patent: June 16, 2020Assignee: LEDVANCE LLCInventors: Anil Jeswani, Astrid van Breda, Ravidasa Hegde, Soumya Kanta Ray
-
Patent number: 10677400Abstract: An edgelit lamp structure is provided. The lamp structure may include at least one optical diffuser having textured surface to direct light; a frame present on at least a portion of a perimeter of the optical diffuser; and a plurality of solid state light emitters that are present between the frame and the optical diffuser, the solid state light emitters emitting light that is received by the optical diffuser.Type: GrantFiled: May 7, 2018Date of Patent: June 9, 2020Assignee: LEDVANCE LLCInventors: Anil Jeswani, Valeriy Zolotykh, Soumya Kanta Ray
-
Publication number: 20190338934Abstract: A lamp including a light source having at least one string of light emitting diodes on a printed circuit board present within a tube body; and end caps having a G13 pin layout on each end of the tube body. The lamp may further include an electrical isolation switch mounted on at least one of the end caps, wherein the electrical isolation switch provides shock protection from the lamp when installed into a ballast free fixture. The lamp may further include driver electronics having a filament detector portion provided by a passive resistance capacitor (RC) circuit that simulates the filament load of a fluorescent lamp when installed into a ballast containing fixture.Type: ApplicationFiled: May 6, 2019Publication date: November 7, 2019Inventors: Soumya Kanta Ray, Anil Jeswani, Robert Harrison