Patents by Inventor Lily Du
Lily Du 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: 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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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: 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: 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: 10953762Abstract: A pilot signal detection and indication unit includes a pilot signal scaling unit structured to generate a scaled pilot signal by shifting a pilot signal using a bias voltage and scaling down the pilot signal, a pilot signal duty cycle comparator unit structured to generate a limited pilot signal that has a fixed peak voltage and a duty cycle that is equivalent to the duty cycle of the pilot signal, a processing unit structured to determine a voltage value and the duty cycle value of the pilot signal from the scaled pilot signal and the limited pilot signal, and to generate an indication signal based on the determined voltage value and duty cycle value, and an indication unit having a number of indicators and being structured to activate selected ones of the number of indicators based on the indication signal.Type: GrantFiled: April 22, 2020Date of Patent: March 23, 2021Assignee: EATON INTELLIGENT POWER LIMITEDInventors: Andrew Yang, Tom Xiong, Jerry Zhang, Lily Du, Harry Zhang
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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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Publication number: 20200247259Abstract: A pilot signal detection and indication unit includes a pilot signal scaling unit structured to generate a scaled pilot signal by shifting a pilot signal using a bias voltage and scaling down the pilot signal, a pilot signal duty cycle comparator unit structured to generate a limited pilot signal that has a fixed peak voltage and a duty cycle that is equivalent to the duty cycle of the pilot signal, a processing unit structured to determine a voltage value and the duty cycle value of the pilot signal from the scaled pilot signal and the limited pilot signal, and to generate an indication signal based on the determined voltage value and duty cycle value, and an indication unit having a number of indicators and being structured to activate selected ones of the number of indicators based on the indication signal.Type: ApplicationFiled: April 22, 2020Publication date: August 6, 2020Applicant: EATON INTELLIGENT POWER LIMITEDInventors: ANDREW YANG, TOM XIONG, JERRY ZHANG, LILY DU, HARRY ZHANG
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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: 10661673Abstract: A pilot signal detection and indication unit includes a pilot signal scaling unit structured to generate a scaled pilot signal by shifting a pilot signal using a bias voltage and scaling down the pilot signal, a pilot signal duty cycle comparator unit structured to generate a limited pilot signal that has a fixed peak voltage and a duty cycle that is equivalent to the duty cycle of the pilot signal, a processing unit structured to determine a voltage value and the duty cycle value of the pilot signal from the scaled pilot signal and the limited pilot signal, and to generate an indication signal based on the determined voltage value and duty cycle value, and an indication unit having a number of indicators and being structured to activate selected ones of the number of indicators based on the indication signal.Type: GrantFiled: December 20, 2016Date of Patent: May 26, 2020Assignee: EATON INTELLIGENT POWER LIMITEDInventors: Andrew Yang, Tom Xiong, Jerry Zhang, Lily Du, Harry 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
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Publication number: 20190097409Abstract: 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: ApplicationFiled: September 28, 2017Publication date: March 28, 2019Applicant: EATON CORPORATIONInventors: MARTIN CHEN, TOM XIONG, KEVIN ZHONG, LILY DU
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Publication number: 20180170198Abstract: A pilot signal detection and indication unit includes a pilot signal scaling unit structured to generate a scaled pilot signal by shifting a pilot signal using a bias voltage and scaling down the pilot signal, a pilot signal duty cycle comparator unit structured to generate a limited pilot signal that has a fixed peak voltage and a duty cycle that is equivalent to the duty cycle of the pilot signal, a processing unit structured to determine a voltage value and the duty cycle value of the pilot signal from the scaled pilot signal and the limited pilot signal, and to generate an indication signal based on the determined voltage value and duty cycle value, and an indication unit having a number of indicators and being structured to activate selected ones of the number of indicators based on the indication signal.Type: ApplicationFiled: December 20, 2016Publication date: June 21, 2018Applicant: EATON CORPORATIONInventors: ANDREW YANG, TOM XIONG, JERRY ZHANG, LILY DU, HARRY ZHANG
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Publication number: 20180138723Abstract: 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: November 14, 2016Publication date: May 17, 2018Applicant: EATON CORPORATIONInventors: KEVIN ZHONG, TOM XIONG, DARRON KIRBY LACEY, SOPHIA ZHANG, LILY DU
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Patent number: 9215779Abstract: The touch screen lighting control device provides a multitude of graphical user interface (GUI) displays at a touch screen and is capable of detecting location specific selections based on the GUI to determine control actions for lighting devices, fans and other electrical fixtures. The device includes a mounting strap configured to couple the device to an in-wall junction box, a touch screen, and a thin film transistor communicably coupled to the touch screen for displaying the different displays and receiving selections at the touch screen. A glass panel can also be positioned between the touch screen and the thin film transistor. The GUI presents an interactive template to a user, and the touch screen and thin film transistor determines an interaction from the user based on the user interacting with the interactive template displayed on the GUI a the touch screen.Type: GrantFiled: March 30, 2012Date of Patent: December 15, 2015Assignee: Cooper Technologies CompanyInventors: Carlos Eduardo Restrepo, Darron Kirby Lacey, Richard A. Pabst, Jr., Thomas Landrum, Sheldon Zhang, Lily Du
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Publication number: 20130257315Abstract: The touch screen lighting control device provides a multitude of graphical user interface (GUI) displays at a touch screen and is capable of detecting location specific selections based on the GUI to determine control actions for lighting devices, fans and other electrical fixtures. The device includes a mounting strap configured to couple the device to an in-wall junction box, a touch screen, and a thin film transistor communicably coupled to the touch screen for displaying the different displays and receiving selections at the touch screen. A glass panel can also be positioned between the touch screen and the thin film transistor. The GUI presents an interactive template to a user, and the touch screen and thin film transistor determines an interaction from the user based on the user interacting with the interactive template displayed on the GUI a the touch screen.Type: ApplicationFiled: March 30, 2012Publication date: October 3, 2013Inventors: Carlos Eduardo Restrepo, Darron Kirby Lacey, Richard A. Pabst, JR., Thomas Landrum, Sheldon Zhang, Lily Du