Patents by Inventor Jirong HUO
Jirong HUO 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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Publication number: 20220270838Abstract: Embodiments of this application relate to the field of electricity, and disclose a drive circuit. In some embodiments of this application, the drive circuit includes a low-side driver module and a delay module, the delay module is configured to output a delay signal of preset duration to the low-side driver module in a case that a control module is being reset; and the low-side driver module is configured to: according to on the delay signal of preset duration, maintain a first state within the preset duration, the first state being the same as a second state; where the second state is a working state of the low-side driver module before the control module is reset, and the second state includes being on or off. The embodiments can help avoid safety hazards caused by unexpected disconnection of a drive signal of the control module.Type: ApplicationFiled: May 10, 2022Publication date: August 25, 2022Inventors: Jirong Huo, Yanhui Fu, Le Chu, Changjian Liu
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Publication number: 20220255546Abstract: Embodiments of this application relate to the field of electricity, and disclose a drive circuit. In some embodiments of this application, the drive circuit includes a high-side driver module and a delay module, the delay module is configured to output a delay signal of preset duration to the high-side driver module in a case that a control module is being reset; and the high-side driver module is configured to: according to the delay signal of preset duration, remain in a first state within the preset duration, the first state being the same as a second state; where the second state is a working state of the high-side driver module before the control module is reset, and the second state includes being on or off.Type: ApplicationFiled: April 29, 2022Publication date: August 11, 2022Applicant: Contemporary Amperex Technology Co., LimitedInventors: Jirong HUO, Yanhui FU, Changjian LIU, Le CHU
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Patent number: 11360136Abstract: Disclosed are a load state detection circuit and method. A microcontroller is connected to a switch unit which is connected between a detecting power supply and a load to be tested. A voltage sampling point is formed at either terminal of the load to be tested, and the voltage sampling circuit is connected between the voltage sampling point and the microcontroller. The voltage sampling circuit is configured to sample a voltage at the voltage sampling point. The microcontroller is configured to connect the load to be tested and the detecting power supply by controlling the switch unit, and determine whether a fault exists in the load to be tested according to a received voltage at the voltage sampling point sampled by the voltage sampling circuit, before connecting the load to be tested with the drive power supply.Type: GrantFiled: March 17, 2021Date of Patent: June 14, 2022Assignee: Contemporary Amperex Technology Co., LimitedInventors: Yuqun Zeng, Kai Wu, Jirong Huo, Le Chu, Yanhui Fu, Qiandeng Li
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Patent number: 11258278Abstract: The present disclosure discloses a detection circuit and method. The detection circuit comprises: a controller, a battery pack, a main positive switch module, a main negative switch module and at least one detection loop. The controller collects voltages of a positive electrode and a negative electrode of the battery pack and a voltage between external sides of the main positive switch module and the main negative switch module when turning on the main positive or negative switch module and after turning on any detection loop, and obtains resistance values of insulation resistors of the external sides according to resistance values of insulation resistors of internal sides of the main positive and negative switch module, as well as the voltages of the positive electrode and the negative electrode and the voltage between the external sides of the main positive switch module and the main negative switch module, which are collected twice.Type: GrantFiled: February 24, 2020Date of Patent: February 22, 2022Assignee: Contemporary Amperex Technology Co., LimitedInventors: Jianwei Zhuo, Le Chu, Jirong Huo, Yanhui Fu, Qiandeng Li
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Patent number: 11150302Abstract: The present application provides a high voltage detection circuit and method. The high voltage detection circuit includes a current adjustment module configured to be turned on or off to adjust a current in a high voltage circuit, a first detection module configured to provide a detection signal and transmit the detection signal to a processor module and the processor module configured to determine whether a master positive switch or a master negative switch is in malfunction according to a desired operation state of the master positive switch, a desired operation state of the master negative switch and the detection signal.Type: GrantFiled: October 19, 2019Date of Patent: October 19, 2021Assignee: Contemporary Amperex Technology Co., LimitedInventors: Jirong Huo, Yanhui Fu, Le Chu, Qiandeng Li
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Publication number: 20210199706Abstract: Disclosed are a load state detection circuit and method. A microcontroller is connected to a switch unit which is connected between a detecting power supply and a load to be tested. A voltage sampling point is formed at either terminal of the load to be tested, and the voltage sampling circuit is connected between the voltage sampling point and the microcontroller. The voltage sampling circuit is configured to sample a voltage at the voltage sampling point. The microcontroller is configured to connect the load to be tested and the detecting power supply by controlling the switch unit, and determine whether a fault exists in the load to be tested according to a received voltage at the voltage sampling point sampled by the voltage sampling circuit, before connecting the load to be tested with the drive power supply.Type: ApplicationFiled: March 17, 2021Publication date: July 1, 2021Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Yuqun ZENG, Kai WU, Jirong HUO, Le CHU, Yanhui FU, Qiandeng LI
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Patent number: 10983154Abstract: Disclosed are a load state detection circuit and method. A microcontroller is connected to a switch unit which is connected between a detecting power supply and a load to be tested. A voltage sampling point is formed at either terminal of the load to be tested, and the voltage sampling circuit is connected between the voltage sampling point and the microcontroller. The voltage sampling circuit is configured to sample a voltage at the voltage sampling point. The microcontroller is configured to connect the load to be tested and the detecting power supply by controlling the switch unit, and determine whether a fault exists in the load to be tested according to a received voltage at the voltage sampling point sampled by the voltage sampling circuit, before connecting the load to be tested with the drive power supply.Type: GrantFiled: July 23, 2019Date of Patent: April 20, 2021Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Yuqun Zeng, Kai Wu, Jirong Huo, Le Chu, Yanhui Fu, Qiandeng Li
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Publication number: 20200274374Abstract: The present disclosure discloses a detection circuit and method. The detection circuit comprises: a controller, a battery pack, a main positive switch module, a main negative switch module and at least one detection loop. The controller collects voltages of a positive electrode and a negative electrode of the battery pack and a voltage between external sides of the main positive switch module and the main negative switch module when turning on the main positive or negative switch module and after turning on any detection loop, and obtains resistance values of insulation resistors of the external sides according to resistance values of insulation resistors of internal sides of the main positive and negative switch module, as well as the voltages of the positive electrode and the negative electrode and the voltage between the external sides of the main positive switch module and the main negative switch module, which are collected twice.Type: ApplicationFiled: February 24, 2020Publication date: August 27, 2020Inventors: Jianwei ZHUO, Le CHU, Jirong HUO, Yanhui FU, Qiandeng LI
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Publication number: 20200271726Abstract: The present application provides a high voltage detection circuit and method. The high voltage detection circuit include: a current adjustment module configured to be turned on or off to adjust a current in a high voltage circuit; a first detection module configured to provide a detection signal and transmit the detection signal to a processor module; the processor module configured to determine whether a positive switch unit or a negative switch unit is in malfunction according to a desired operation state of the positive switch unit, a desired operation state of the negative switch unit and the detection signal.Type: ApplicationFiled: October 19, 2019Publication date: August 27, 2020Applicant: Contemporary Amperex Technology Co., LimitedInventors: Jirong HUO, Yanhui FU, Le CHU, Qiandeng Li
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Publication number: 20200088778Abstract: Disclosed are a load state detection circuit and method. A microcontroller is connected to a switch unit which is connected between a detecting power supply and a load to be tested. A voltage sampling point is formed at either terminal of the load to be tested, and the voltage sampling circuit is connected between the voltage sampling point and the microcontroller. The voltage sampling circuit is configured to sample a voltage at the voltage sampling point. The microcontroller is configured to connect the load to be tested and the detecting power supply by controlling the switch unit, and determine whether a fault exists in the load to be tested according to a received voltage at the voltage sampling point sampled by the voltage sampling circuit, before connecting the load to be tested with the drive power supply.Type: ApplicationFiled: July 23, 2019Publication date: March 19, 2020Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Yuqun ZENG, Kai WU, Jirong HUO, Le CHU, Yanhui FU, Qiandeng LI