Patents by Inventor Kevin Zhong
Kevin Zhong 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).
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Patent number: 11937355Abstract: A dimmer switch system for dimming a load includes a master dimmer structured to be electrically connected to a power source and the load and to control dimming of the load by regulating power provided from the power source to the load, and at least one accessory dimmer structured to be electrically connected to the master dimmer via a traveler conductor. The master dimmer is structured to generate a first control signal on the traveler conductor to indicate a type of the master dimmer, and the at least one accessory dimmer is structured to selectively enable or disable one or more functions of the at least one accessory dimmer based on the type of the master dimmer.Type: GrantFiled: December 20, 2021Date of Patent: March 19, 2024Assignee: EATON INTELLIGENT POWER LIMITEDInventors: Sumeet T. Raghavani, Grayling Love, Ahmed El-Gayyar, Kevin Zhong, Saivaraprasad Murahari
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Publication number: 20240079784Abstract: An electronic device may be provided with an antenna having a resonating element and a light source module mounted to a flexible printed circuit and a metal cowling. The module may emit light through a rear housing wall. The printed circuit may be interposed between the metal cowling and a conductive support plate in the rear housing wall. The printed circuit may include a ground trace coupled to the resonating element. A dimpled pad may couple the ground trace to the support plate. Compressive foam may be used to exert a force against the flexible printed circuit that presses the dimpled pad against the conductive support plate. The ground trace and the dimpled pad may form a return path to ground for the resonating element. The dimpled pad may occupy less height within the device than other structures such as metal springs.Type: ApplicationFiled: August 30, 2023Publication date: March 7, 2024Inventors: Han Wang, Victor C. Lee, Jingni Zhong, Ming Chen, Bhaskara R. Rupakula, Yiren Wang, Yuan Tao, Christopher Q. Ma, Zhiheng Zhou, Sherry Cao, Kevin M. Froese, Hao Xu, Hongfei Hu, Mattia Pascolini
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Patent number: 11719400Abstract: Electrical devices with lights having onboard secondary power supplies are configured with synchronizable zone-based operation and/or color selectable modes. The electrical devices can be power receptacles and can be connected to a line input of a power circuit of a power grid and can also have the onboard secondary (emergency power) power supplies. The devices are configured so that respective lights can automatically illuminate upon motion detection in a zone and/or upon a disruption to the power circuit or to a powered state of a particular electrical device. The devices can be configured to allow a user to select different color or color temperatures using a color selection circuit.Type: GrantFiled: December 14, 2021Date of Patent: August 8, 2023Assignee: EATON INTELLIGENT POWER LIMITEDInventors: Abdulkabir O. Dansalami, Saivaraprasad Murahari, Kevin Zhong, Huafei Huang, Sophia Zhang
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Patent number: 11678425Abstract: A dimmer includes a sole intensity actuator structured to be used for at least one of: adjusting light intensity based on a first user input during normal operation; or entering configuration mode based on a second user input and adjusting an end trim value based on a third user input; a sole intensity potentiometer coupled to the sole intensity actuator and comprising a variable resistor, the sole intensity potentiometer structured to measure an input voltage based on variable resistance, and a controller coupled to the sole intensity potentiometer and a driver circuit coupled to a bidirectional switching device, the controller structured to control dimmer operation, comprising receiving an input voltage signal and transmitting a dimming signal to the driver circuit, the dimming signal based at least in part on the signal.Type: GrantFiled: April 11, 2022Date of Patent: June 13, 2023Assignee: EATON INTELLIGENT POWER LIMITEDInventors: Hoon Lee, Gayatri Pandit, Swapnil Suresh Sabde, Rahul Sakhare, Saivaraprasad Murahari, Haidong Harry Zhang, Shifang Sophia Sophia Zhang, Lili Lily Du, Kun Kevin Zhong
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Publication number: 20220338329Abstract: A dimmer includes a sole intensity actuator structured to be used for at least one of: adjusting light intensity based on a first user input during normal operation; or entering configuration mode based on a second user input and adjusting an end trim value based on a third user input; a sole intensity potentiometer coupled to the sole intensity actuator and comprising a variable resistor, the sole intensity potentiometer structured to measure an input voltage based on variable resistance, and a controller coupled to the sole intensity potentiometer and a driver circuit coupled to a bidirectional switching device, the controller structured to control dimmer operation, comprising receiving an input voltage signal and transmitting a dimming signal to the driver circuit, the dimming signal based at least in part on the signal.Type: ApplicationFiled: April 11, 2022Publication date: October 20, 2022Applicant: EATON INTELLIGENT POWER LIMITEDInventors: Hoon Lee, Gayatri Pandit, Swapnil Suresh Sabde, Rahul Sakhare, Saivaraprasad Murahari, Haidong Harry Zhang, Shifang Sophia Sophia Zhang, Lili Lily Du, Kun Kevin Zhong
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Publication number: 20220221117Abstract: Electrical devices with lights having onboard secondary power supplies are configured with synchronizable zone-based operation and/or color selectable modes. The electrical devices can be power receptacles and can be connected to a line input of a power circuit of a power grid and can also have the onboard secondary (emergency power) power supplies. The devices are configured so that respective lights can automatically illuminate upon motion detection in a zone and/or upon a disruption to the power circuit or to a powered state of a particular electrical device. The devices can be configured to allow a user to select different color or color temperatures using a color selection circuit.Type: ApplicationFiled: December 14, 2021Publication date: July 14, 2022Inventors: Abdulkabir O. Dansalami, Saivaraprasad Murahari, Kevin Zhong, Huafei Huang, Sophia Zhang
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Publication number: 20220117065Abstract: A dimmer switch system for dimming a load includes a master dimmer structured to be electrically connected to a power source and the load and to control dimming of the load by regulating power provided from the power source to the load, and at least one accessory dimmer structured to be electrically connected to the master dimmer via a traveler conductor. The master dimmer is structured to generate a first control signal on the traveler conductor to indicate a type of the master dimmer, and the at least one accessory dimmer is structured to selectively enable or disable one or more functions of the at least one accessory dimmer based on the type of the master dimmer.Type: ApplicationFiled: December 20, 2021Publication date: April 14, 2022Applicant: EATON INTELLIGENT POWER LIMITEDInventors: SUMEET T. RAGHAVANI, GRAYLING LOVE, AHMED EL-GAYYAR, KEVIN ZHONG, SAIVARAPRASAD MURAHARI
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Patent number: 11240893Abstract: A dimmer includes a power supply circuit including a current limiter and a switch, the power supply circuit electrically coupled to a power source and a load, where current is channeled via the current limiter during a power-on of the dimmer and via the switch during operation of the dimmer after the power-on, a triode for alternating current (TRIAC) control circuit electrically coupled to the power source and the load, where the TRIAC control circuit is structured to control operation of a TRIAC configured to control an amount of power supplied to the load; and a processing unit electrically coupled to the power supply circuit and the TRIAC control circuit, where the processing unit is structured to control the switch and the TRIAC control circuit after the power-on.Type: GrantFiled: November 6, 2019Date of Patent: February 1, 2022Assignee: EATON INTELLIGENT POWER LIMITEDInventors: Lin Yang, Lily Du, Haidong Zhang, Chuanchuan Zhuang, Kevin Zhong
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Patent number: 11240901Abstract: A dimmer switch system for dimming a load includes a master dimmer structured to be electrically connected to a power source and the load and to control dimming of the load by regulating power provided from the power source to the load, and at least one accessory dimmer structured to be electrically connected to the master dimmer via a traveler conductor. The master dimmer is structured to generate a first control signal on the traveler conductor to indicate a type of the master dimmer, and the at least one accessory dimmer is structured to selectively enable or disable one or more functions of the at least one accessory dimmer based on the type of the master dimmer.Type: GrantFiled: December 23, 2019Date of Patent: February 1, 2022Assignee: EATON INTELLIGENT POWER LIMITEDInventors: Sumeet T. Raghavani, Grayling Love, Ahmed El-Gayyar, Kevin Zhong, Saivaraprasad Murahari
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Patent number: 11173796Abstract: An electric vehicle charging circuit breaker for charging an electric vehicle with power from a power source. The electric vehicle charging circuit breaker includes a circuit protection unit structured to provide circuit protection between the power source and the electric vehicle, an electric vehicle charging unit structured to control charging of the electric vehicle, a metering unit structured to meter power flowing between the power source and the electric vehicle, and a display unit structured to display information including at least one of metering information and a status of electric vehicle charging.Type: GrantFiled: March 13, 2020Date of Patent: November 16, 2021Assignee: EATON INTELLIGENT POWER LIMITEDInventors: Kevin Zhong, Tom Xiong, Darron Kirby Lacey, Sophia Zhang, Lily Du
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Publication number: 20210195719Abstract: A dimmer switch system for dimming a load includes a master dimmer structured to be electrically connected to a power source and the load and to control dimming of the load by regulating power provided from the power source to the load, and at least one accessory dimmer structured to be electrically connected to the master dimmer via a traveler conductor. The master dimmer is structured to generate a first control signal on the traveler conductor to indicate a type of the master dimmer, and the at least one accessory dimmer is structured to selectively enable or disable one or more functions of the at least one accessory dimmer based on the type of the master dimmer.Type: ApplicationFiled: December 23, 2019Publication date: June 24, 2021Applicant: EATON INTELLIGENT POWER LIMITEDInventors: SUMEET T. RAGHAVANI, GRAYLING LOVE, AHMED EL-GAYYAR, KEVIN ZHONG, SAIVARAPRASAD MURAHARI
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Publication number: 20210136885Abstract: A dimmer includes a power supply circuit including a current limiter and a switch, the power supply circuit electrically coupled to a power source and a load, where current is channeled via the current limiter during a power-on of the dimmer and via the switch during operation of the dimmer after the power-on, a triode for alternating current (TRIAC) control circuit electrically coupled to the power source and the load, where the TRIAC control circuit is structured to control operation of a TRIAC configured to control an amount of power supplied to the load; and a processing unit electrically coupled to the power supply circuit and the TRIAC control circuit, where the processing unit is structured to control the switch and the TRIAC control circuit after the power-on.Type: ApplicationFiled: November 6, 2019Publication date: May 6, 2021Applicant: EATON INTELLIGENT POWER LIMITEDInventors: LIN YANG, LILY DU, HAIDONG ZHANG, CHUANCHUAN ZHUANG, KEVIN ZHONG
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Patent number: 10813188Abstract: A dimmer structured to be connected to a power source via a hot conductor and to a load via a load conductor includes a zero-crossing detector structured to generate a zero-crossing signal that that has a high state or a low state and changes states in response to a voltage between the hot conductor and the load conductor reaching or leaving zero volts only during a positive half-cycle of power received from the power source, a processing unit structured to receive the zero-crossing signal and to generate a triac control signal based on the zero-crossing signal, and a triac control unit including a triac and being structured to electrically connect between the hot conductor and the neutral conductor and to turn on and turn off the triac based on the triac control signal.Type: GrantFiled: November 14, 2019Date of Patent: October 20, 2020Assignee: EATON INTELLIGENT POWER LIMITEDInventors: Haidong Zhang, Lin Yang, Lily Du, Hoon Lee, Kevin Zhong
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Patent number: 10798796Abstract: A dimmer switch system for dimming a load includes a master dimmer structured to be electrically connected to a power source and the load and to control dimming of the load by regulating power provided from the power source to the load, and at least one accessory dimmer structured to be electrically connected to the master dimmer via a traveler conductor. The master dimmer is structured to generate a first control signal on the traveler conductor during one of a positive or negative half-cycle of power from the power source. The at least one accessory dimmer is structured to generate a second control signal on the traveler conductor during the other of the positive or negative half-cycle of power from the power source.Type: GrantFiled: December 23, 2019Date of Patent: October 6, 2020Assignee: EATON INTELLIGENT POWER LIMITEDInventors: Ahmed El-Gayyar, Sumeet T. Raghavani, Kevin Zhong, Saivaraprasad Murahari
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Patent number: 10716191Abstract: A dimmer system includes a master dimmer electrically connected between a power source and a load and structured to control dimming of the load. The master dimmer includes a power supply structured to generate first direct current power and second direct current power and a constant current circuit structured to fix a current level of the second direct current power. The dimmer system also includes a plurality of remote dimmers structured to receive and be powered by the second direct current power with the fixed current level.Type: GrantFiled: December 23, 2019Date of Patent: July 14, 2020Assignee: EATON INTELLIGENT POWER LIMITEDInventors: Kevin Zhong, Saivaraprasad Murahari, Lily Du, Martin Chen, Ahmed El-Gayyar, Lin Yang
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Publication number: 20200220365Abstract: An electric vehicle charging circuit breaker for charging an electric vehicle with power from a power source. The electric vehicle charging circuit breaker includes a circuit protection unit structured to provide circuit protection between the power source and the electric vehicle, an electric vehicle charging unit structured to control charging of the electric vehicle, a metering unit structured to meter power flowing between the power source and the electric vehicle, and a display unit structured to display information including at least one of metering information and a status of electric vehicle charging.Type: ApplicationFiled: March 13, 2020Publication date: July 9, 2020Applicant: EATON INTELLIGENT POWER LIMITEDInventors: KEVIN ZHONG, TOM XIONG, DARRON KIRBY LACEY, SOPHIA ZHANG, LILY DU
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Patent number: 10682924Abstract: An electrical circuit for electric vehicle supply equipment, the electrical circuit including a pilot control signal unit structured to generate a pilot control signal having a state including one of a high state and a low state, an isolation unit electrically connected to the pilot control signal unit and a first ground and being structured to isolate the pilot control signal to generate an isolated pilot control signal, and an amplification unit electrically connected to the isolation unit, having a second ground, and being structured to amplify the isolated pilot control signal to generate a pilot signal. The isolation unit is structured to isolate the second ground of the amplification unit from the first ground.Type: GrantFiled: November 30, 2017Date of Patent: June 16, 2020Assignee: EATON INTELLIGENT POWER LIMITEDInventors: Lin Yang, Tom Xiong, Kevin Zhong, Chuanchuan Zhuang, Xianzhen Zhang
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Patent number: 10637227Abstract: A circuit interrupter including a first set of separable contacts, a second set of separable contacts, a first operating mechanism structured to open the first set of separable contacts, a second operating mechanism structured to open and close the second set of separable contacts, and an electronic trip unit including a routine structured to detect a fault condition and a type of the fault condition, to control the second operating mechanism to open the second set of separable contacts in response to detecting a first type of fault condition, and to control the second operating mechanism to close the second set of separable contacts a predetermined amount of time after controlling the second operating mechanism to open the second set of separable contacts.Type: GrantFiled: September 28, 2017Date of Patent: April 28, 2020Assignee: EATON INTELLIGENT POWER LIMITEDInventors: Martin Chen, Tom Xiong, Kevin Zhong, Lily Du
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Patent number: 10630089Abstract: An electric vehicle charging circuit breaker for charging an electric vehicle with power from a power source. The electric vehicle charging circuit breaker includes a circuit protection unit structured to provide circuit protection between the power source and the electric vehicle, an electric vehicle charging unit structured to control charging of the electric vehicle, a metering unit structured to meter power flowing between the power source and the electric vehicle, and a display unit structured to display information including at least one of metering information and a status of electric vehicle charging.Type: GrantFiled: November 14, 2016Date of Patent: April 21, 2020Assignee: EATON INTELLIGENT POWER LIMITEDInventors: Kevin Zhong, Tom Xiong, Darron Kirby Lacey, Sophia Zhang, Lily Du
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Patent number: 10616967Abstract: A dimmer includes a processing unit structured to generate a dimming control signal, wherein in the on state the dimming control signal has a constant voltage with a low pulse a predetermined time after each zero-crossing in power flowing through the hot conductor and in the off state the dimming control signal has a constant voltage, a load control circuit structured to electrically connect between the hot conductor and the load conductor and to selectively electrically connect the hot conductor to the load conductor based on the dimming control signal, and a snubber control circuit including a snubber structured to electrically couple between the hot conductor and the load conductor, wherein the snubber control circuit is structured to activate the snubber when the dimming control signal has the on state and to deactivate the snubber when the dimming control signal has the off state.Type: GrantFiled: April 18, 2019Date of Patent: April 7, 2020Assignee: EATON INTELLIGENT POWER LIMITEDInventors: Kevin Zhong, Hoon Lee, Saivaraprasad Murahari, Lily Du