Patents by Inventor Zhangji ZHOU
Zhangji ZHOU 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: 11843287Abstract: It is disclosed a motor thermal protection device and operation method thereof. The motor thermal protection device utilizes a power supply of a motor for power supplying and comprises: a capacitor timing circuit, configured to time after the motor is powered off; a power-off time determining unit, configured to perform a reading operation of reading an output voltage of the capacitor timing circuit after the motor is powered on, and determine a power-off time from when the motor is powered off to when the motor is powered on according to the output voltage; and a heat accumulation calculating unit, configured to calculate a remaining heat accumulation when the motor is powered on according to the power-off time and a heat accumulation when the motor is powered off.Type: GrantFiled: July 16, 2021Date of Patent: December 12, 2023Assignee: Schneider Electric Industries SASInventors: Zhangji Zhou, Lei Shi, Ying Shi, Bing Shuang, Haijun Zhao, Wenhua Wang, Shuang Sun, Siyu Liu
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Patent number: 11652345Abstract: The present disclosure relates to a driving apparatus for a reclosing apparatus and a driving method thereof. The driving apparatus comprises a first energy storage unit, a timing unit, a control unit, and a first power supply unit, a second energy storage unit and a driving unit. The timing unit outputs a first enable signal; the control unit outputs a second enable signal or a third enable signal; the first power supply unit enables the second energy storage unit to receive the power when receiving the second enable signal, and enables the second energy storage unit to discharge when receiving the third enable signal; the second energy storage unit receives and stores the power via the first power supply unit; and the driving unit provides the power stored in the first energy storage unit to the reclosing apparatus when a predetermined condition is satisfied.Type: GrantFiled: July 16, 2021Date of Patent: May 16, 2023Assignee: Schneider Electric Industries SASInventors: Haijun Zhao, Ying Shi, Jiamin Chen, Fabien Dechamps, Zhangji Zhou, Shuang Sun, Bing Shuang, Lei Shi
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Patent number: 11528791Abstract: A driving circuit is provided in this present disclosure, the driving circuit includes a voltage input module, a quick start module and a control module. The voltage input module includes a first input terminal and a second input terminal and is configured to receive an alternating current voltage and convert the alternating current voltage into a direct current voltage. The quick start module is coupled to the voltage input module and configured to receive the direct current voltage and convert the direct current voltage into a startup voltage. The control module is coupled to the quick start module and configured to receive the startup voltage and control a load, wherein the quick start module comprises a first resistor and a second resistor connected in series and is coupled between the first input terminal and the control module.Type: GrantFiled: September 19, 2019Date of Patent: December 13, 2022Assignee: CURRENT LIGHTING SOLUTIONS, LLCInventors: Zhu Mao, Min Fang, Zhangji Zhou, Shuyi Qin, Bo Zhang, Fanbin Wang
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Patent number: 11509257Abstract: A motor protector and a method for operating the same.Type: GrantFiled: December 30, 2020Date of Patent: November 22, 2022Assignee: Schneider Electric Industries SASInventors: Ying Shi, Haijun Zhao, Jiamin Chen, Shuang Sun, Zhangji Zhou, Bing Shuang, Fabien Dechamps, Benjamin Edwards
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Publication number: 20220021197Abstract: The present disclosure relates to a driving apparatus for a reclosing apparatus and a driving method thereof. The driving apparatus comprises a first energy storage unit, a timing unit, a control unit, and a first power supply unit, a second energy storage unit and a driving unit. The timing unit outputs a first enable signal; the control unit outputs a second enable signal or a third enable signal; the first power supply unit enables the second energy storage unit to receive the power when receiving the second enable signal, and enables the second energy storage unit to discharge when receiving the third enable signal; the second energy storage unit receives and stores the power via the first power supply unit; and the driving unit provides the power stored in the first energy storage unit to the reclosing apparatus when a predetermined condition is satisfied.Type: ApplicationFiled: July 16, 2021Publication date: January 20, 2022Applicant: Schneider Electric Industries SASInventors: Haijun ZHAO, Ying SHI, Jiamin CHEN, Fabien DECHAMPS, Zhangji ZHOU, Shuang SUN, Bing SHUANG, Lei SHI
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Publication number: 20220021279Abstract: It is disclosed a motor thermal protection device and operation method thereof. The motor thermal protection device utilizes a power supply of a motor for power supplying and comprises: a capacitor timing circuit, configured to time after the motor is powered off; a power-off time determining unit, configured to perform a reading operation of reading an output voltage of the capacitor timing circuit after the motor is powered on, and determine a power-off time from when the motor is powered off to when the motor is powered on according to the output voltage; and a heat accumulation calculating unit, configured to calculate a remaining heat accumulation when the motor is powered on according to the power-off time and a heat accumulation when the motor is powered off.Type: ApplicationFiled: July 16, 2021Publication date: January 20, 2022Applicant: Schneider Electric Industries SASInventors: Zhangji ZHOU, Lei SHI, Ying SHI, Bing SHUANG, Haijun ZHAO, Wenhua WANG, Shuang SUN, Siyu LIU
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Publication number: 20220021200Abstract: The disclosure relates to a power supply device for a motor protector and a power supplying method thereof. The motor protector receives power. The power supply device comprises: a first power supplying unit, configured to receive and store the power and supply power to a tripping device of the motor protector; a second power supplying unit, configured to receive the power and supply power to a calculation and control device of the motor protector; a third power supplying unit, configured to receive and store the power and supply power to a reclosing device of the motor protector; and a control unit, configured to control an order in which the first power supplying unit, the second power supplying unit and the third power supplying unit receive the power.Type: ApplicationFiled: July 16, 2021Publication date: January 20, 2022Applicant: Schneider Electric Industries SASInventors: Ying SHI, Haijun ZHAO, Fabien DECHAMPS, Zhangji ZHOU, Shuang SUN
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Publication number: 20210385923Abstract: A driving circuit is provided in this present disclosure, the driving circuit includes a voltage input module, a quick start module and a control module. The voltage input module includes a first input terminal and a second input terminal and is configured to receive an alternating current voltage and convert the alternating current voltage into a direct current voltage. The quick start module is coupled to the voltage input module and configured to receive the direct current voltage and convert the direct current voltage into a startup voltage. The control module is coupled to the quick start module and configured to receive the startup voltage and control a load, wherein the quick start module comprises a first resistor and a second resistor connected in series and is coupled between the first input terminal and the control module.Type: ApplicationFiled: September 19, 2019Publication date: December 9, 2021Inventors: Zhu Mao, Min Fang, Zhangji Zhou, Shuyi Qin, Bo Zhang, Fanbin Wang
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Publication number: 20210203266Abstract: A motor protector and a method for operating the same.Type: ApplicationFiled: December 30, 2020Publication date: July 1, 2021Applicant: Schneider Electric Industries SASInventors: Ying SHI, Haijun ZHAO, Jiamin CHEN, Shuang SUN, Zhangji ZHOU, Bing SHUANG, Fabien DECHAMPS, Benjamin Edwards
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Patent number: 10973101Abstract: A single-stage driver for an LED device, configured to be coupled between a power supply and the LED device, comprises: a rectifier, a DC-to-DC converter, a resistor and a controller. The rectifier is configured to be coupled to the power supply and convert an alternating voltage from the power supply into a first direct voltage. The DC-to-DC converter, which comprises at least two switches, is coupled between the rectifier and the LED device and configured to receive the first direct voltage and provide a constant current to the LED device. The resistor is configured to be coupled in series with the LED device. The controller is coupled between the resistor and the at least two switches, and configured to keep the current through the LED device stable around a predetermined current value by controlling the switches based on a voltage across the resistor, wherein all the at least two switches are turned on or off synchronously.Type: GrantFiled: August 7, 2019Date of Patent: April 6, 2021Assignee: CURRENT LIGHTING SOLUTIONS, LLCInventors: Zhu Mao, Min Fang, Zhangji Zhou, Shuyi Qin, Fanbin Wang
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Publication number: 20200053847Abstract: A single-stage driver for a LED device, configured to be coupled between a power supply and the LED device, comprises: a rectifier, a DC-to-DC converter, a resistor and a controller. The rectifier is configured to be coupled to the power supply and convert an alternating voltage from the power supply into a first direct voltage. The DC-to-DC converter, which comprises at least two switches, is coupled between the rectifier and the LED device and configured to receive the first direct voltage and provide a constant current to the LED device. The resistor is configured to be coupled in series with the LED device. The controller is coupled between the resistor and the switches, and configured to keep the current through the LED device stable around a predetermined current value by controlling the switches based on a voltage across the resistor, wherein all the switches are turned on or off synchronously.Type: ApplicationFiled: August 7, 2019Publication date: February 13, 2020Inventors: Zhu MAO, Min FANG, Zhangji ZHOU, Shuyi QIN, Fanbin WANG
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Patent number: 10440798Abstract: The present invention provides an LED lamp and a temperature control circuit applied to the LED lamp. The LED lamp includes at least one LED unit, a magnetic ballast, and an LED drive circuit. The magnetic ballast is coupled to a power and configured to limit and stabilize a received alternating current. The LED drive circuit includes a temperature control circuit. The temperature control circuit is coupled to the magnetic ballast and connected in parallel with the LED unit, is configured to detect an internal temperature of the LED lamp and adjust an output power of the LED unit, and includes a thermal sensitive module having a negative temperature coefficient thermistor and a phase cut circuit.Type: GrantFiled: April 27, 2018Date of Patent: October 8, 2019Assignee: CURRENT LIGHTING SOLUTIONS, LLCInventors: Zhu Mao, Zhangji Zhou, Min Fang, Fanbin Wang, Shuyi Qin
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Publication number: 20180338356Abstract: The present invention provides an LED lamp and a temperature control circuit applied to the LED lamp. The LED lamp includes at least one LED unit, a magnetic ballast, and an LED drive circuit. The magnetic ballast is coupled to a power and configured to limit and stabilize a received alternating current. The LED drive circuit includes a temperature control circuit. The temperature control circuit is coupled to the magnetic ballast and connected in parallel with the LED unit, is configured to detect an internal temperature of the LED lamp and adjust an output power of the LED unit, and includes a thermal sensitive module having a negative temperature coefficient thermistor and a phase cut circuit.Type: ApplicationFiled: April 27, 2018Publication date: November 22, 2018Inventors: Zhu MAO, Zhangji ZHOU, Min FANG, Fanbin WANG, Shuyi QIN