Inventor · disambiguated record
Changjian Liu
Also filed as: LIU CHANGJIAN
15 granted patents·1 pending application·2 citations·filing 2014–2024
83Inventor score
Files withCONTEMPORARY AMPEREX TECHNOLOGY CO LTD13CONTEMPORARY AMPEREX TECHNOLOGY HONG KONG LTD2UNIV HUAZHONG SCIENCE TECH1
Top patents by PatentIndex Score
16 records- 0188US11366462B2High-voltage interlock device and fault detection method thereofCONTEMPORARY AMPEREX TECHNOLOGY CO LTD·Filed 2021·Granted Jun 21, 2022·2 cites·19 claims
- 0273US2025079099A1Drive circuitCONTEMPORARY AMPEREX TECHNOLOGY HONG KONG LTD·Filed 2024·Application pending·0 cites
- 0364US12183527B2Drive circuitCONTEMPORARY AMPEREX TECHNOLOGY HONG KONG LTD·Filed 2022·Granted Dec 31, 2024·0 cites·10 claims
- 0457US12025666B2Detection circuit and detection method of electrical control device, and electric vehicleCONTEMPORARY AMPEREX TECHNOLOGY CO LTD·Filed 2022·Granted Jul 2, 2024·0 cites·18 claims
- 0553US11549999B2High voltage interlock device and detection method thereofCONTEMPORARY AMPEREX TECHNOLOGY CO LTD·Filed 2022·Granted Jan 10, 2023·0 cites·17 claims
- 0653US11320481B2High voltage interlock circuit and detection methodCONTEMPORARY AMPEREX TECHNOLOGY CO LTD·Filed 2020·Granted May 3, 2022·0 cites·13 claims
- 0753US11303215B2System and method for providing a constant power sourceCONTEMPORARY AMPEREX TECHNOLOGY CO LTD·Filed 2020·Granted Apr 12, 2022·0 cites·20 claims
- 0851US11171569B2Wake-up method and wake-up system for battery management systemCONTEMPORARY AMPEREX TECHNOLOGY CO LTD·Filed 2020·Granted Nov 9, 2021·0 cites·20 claims
- 0948US11996833B2Drive circuitCONTEMPORARY AMPEREX TECHNOLOGY CO LTD·Filed 2022·Granted May 28, 2024·0 cites·10 claims
- 1048US11927639B2High-voltage interlocking device and method for detecting the high-voltage interlocking deviceCONTEMPORARY AMPEREX TECHNOLOGY CO LTD·Filed 2021·Granted Mar 12, 2024·0 cites·18 claims
- 1148US11867748B2Electrical control device detection circuit, detection method, and electric vehicleCONTEMPORARY AMPEREX TECHNOLOGY CO LTD·Filed 2021·Granted Jan 9, 2024·0 cites·22 claims
- 1248US11413965B2High voltage interlock circuit and detection method thereofCONTEMPORARY AMPEREX TECHNOLOGY CO LTD·Filed 2021·Granted Aug 16, 2022·0 cites·13 claims
- 1346US11852670B2Method for monitoring insulation monitoring circuit and battery management systemCONTEMPORARY AMPEREX TECHNOLOGY CO LTD·Filed 2021·Granted Dec 26, 2023·0 cites·7 claims
- 1445US11031789B2Battery pack management system and control method thereofCONTEMPORARY AMPEREX TECHNOLOGY CO LTD·Filed 2019·Granted Jun 8, 2021·0 cites·8 claims
- 1542US10725114B2Sampling detection circuit and method for detecting a circuit malfunctionCONTEMPORARY AMPEREX TECHNOLOGY CO LTD·Filed 2019·Granted Jul 28, 2020·0 cites·18 claims
- 1638US10298338B2Method for evaluating quality of radio frequency signals for stellite navigation systemUNIV HUAZHONG SCIENCE TECH·Filed 2014·Granted May 21, 2019·0 cites·13 claims
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