Assignee
JOULWATT TECH CO LTD
CN·46 granted patents·38 pending applications·15 citations·filing 2021–2025
Top patents by PatentIndex Score
84 records- 0195US12057080B2Light source driving circuit and communication device for display systemJOULWATT TECH CO LTD·Filed 2022·Granted Aug 6, 2024·4 cites·23 claims
- 0291US12057777B2Asymmetric half-bridge flyback converter and control method thereofJOULWATT TECH CO LTD·Filed 2022·Granted Aug 6, 2024·3 cites·16 claims
- 0390US12444343B2LED driver circuit, multi-wire communication device and method for LED display systemJOULWATT TECH CO LTD·Filed 2022·Granted Oct 14, 2025·2 cites·18 claims
- 0486US11817792B2Switching-type regulation driver and regulation driving method thereofJOULWATT TECH CO LTD·Filed 2021·Granted Nov 14, 2023·2 cites·14 claims
- 0585US12294301B2Power supply circuit and light-emitting diode (LED) driving system using power supply circuitJOULWATT TECH CO LTD·Filed 2023·Granted May 6, 2025·1 cites·18 claims
- 0685US11894457B2Semiconductor device and manufacturing method thereofJOULWATT TECH CO LTD·Filed 2021·Granted Feb 6, 2024·2 cites·16 claims
- 0784US11757367B2Flyback switch circuit and control method thereofJOULWATT TECH CO LTD·Filed 2021·Granted Sep 12, 2023·1 cites·17 claims
- 0882US2026066771A1Drive CircuitJOULWATT TECH CO LTD·Filed 2025·Application pending·0 cites
- 0977US2025373173A1Flyback converter and control circuit and control method thereforJOULWATT TECH CO LTD·Filed 2025·Application pending·0 cites
- 1074US2024120849A1Protection Circuit of Flyback Converter and Control MethodJOULWATT TECH CO LTD·Filed 2023·Application pending·0 cites
- 1174US2024120831A1Protection Circuit of Flyback Converter and Control MethodJOULWATT TECH CO LTD·Filed 2023·Application pending·0 cites
- 1273US2026039206A1Switching Power SupplyJOULWATT TECH CO LTD·Filed 2025·Application pending·0 cites
- 1369US11901447B2Semiconductor device and manufacturing method thereofJOULWATT TECH CO LTD·Filed 2023·Granted Feb 13, 2024·0 cites·8 claims
- 1469US2025286465A1Multi-output switching power supply and control method thereofJOULWATT TECH CO LTD·Filed 2025·Application pending·0 cites
- 1569US2025370053A1Detection circuit and method for detecting internal resistance of battery unitJOULWATT TECH CO LTD·Filed 2025·Application pending·0 cites
- 1667US12451891B2Switching frequency synchronization circuit, method therefor and switching power supplyJOULWATT TECH CO LTD·Filed 2024·Granted Oct 21, 2025·0 cites·22 claims
- 1767US12101025B2Switched-mode power supply, power supply circuit thereof, and power supply methodJOULWATT TECH CO LTD·Filed 2022·Granted Sep 24, 2024·0 cites·20 claims
- 1867US12087243B2Light source driving circuit and communication device for display systemJOULWATT TECH CO LTD·Filed 2022·Granted Sep 10, 2024·0 cites·20 claims
- 1966US12483148B2Flyback converter with high efficiency and control method thereofJOULWATT TECH CO LTD·Filed 2023·Granted Nov 25, 2025·0 cites·17 claims
- 2066US2025364914A1Control circuit and control method for flyback converter, and switching power supplyJOULWATT TECH CO LTD·Filed 2025·Application pending·0 cites
- 2164US12598680B2Lighting control circuit, lighting control method, and lighting circuitJOULWATT TECH CO LTD·Filed 2024·Granted Apr 7, 2026·0 cites·14 claims
- 2264US12107413B2Switch protection circuit and power converter suited for different input voltage rangesJOULWATT TECH CO LTD·Filed 2022·Granted Oct 1, 2024·0 cites·14 claims
- 2364US11791704B2Control method of switching circuit, control circuit of switching circuit, and switching circuitJOULWATT TECH CO LTD·Filed 2021·Granted Oct 17, 2023·0 cites·19 claims
- 2464US2025158399A1Power Grid Switching Circuit and Circuit SystemJOULWATT TECH CO LTD·Filed 2024·Application pending·0 cites
- 2563US12484121B2Lighting circuit and control method thereofJOULWATT TECH CO LTD·Filed 2024·Granted Nov 25, 2025·0 cites·15 claims
- 2663US12470068B2Power supply system control method and power supply systemJOULWATT TECH CO LTD·Filed 2024·Granted Nov 11, 2025·0 cites·16 claims
- 2763US12471194B2Driving control circuit of power transistor, lighting control circuit and lighting circuitJOULWATT TECH CO LTD·Filed 2024·Granted Nov 11, 2025·0 cites·11 claims
- 2863US12119749B2Flyback converter, constant-current control method, and lighting systemJOULWATT TECH CO LTD·Filed 2022·Granted Oct 15, 2024·0 cites·20 claims
- 2963US2025239663A1Afe chip with synchronous voltage sampling and battery management systemJOULWATT TECH CO LTD·Filed 2025·Application pending·0 cites
- 3062US11652169B2Semiconductor device and manufacturing method thereofJOULWATT TECH CO LTD·Filed 2021·Granted May 16, 2023·0 cites·8 claims
- 3161US12482598B2Inductor, inductor fabrication method, and power supply circuit containing inductorJOULWATT TECH CO LTD·Filed 2022·Granted Nov 25, 2025·0 cites·20 claims
- 3261US2025183804A1Control circuit with high-voltage startup function and switching power supplyJOULWATT TECH CO LTD·Filed 2024·Application pending·0 cites
- 3360US12477633B2Power conversion circuit for quick response and switching power supplyJOULWATT TECH CO LTD·Filed 2023·Granted Nov 18, 2025·0 cites·19 claims
- 3460US11895749B2Light emitting diode (LED) drive method and circuit, and LED lighting deviceJOULWATT TECH CO LTD·Filed 2022·Granted Feb 6, 2024·0 cites·20 claims
- 3560US2026005612A1High-precision isolation converter and control method thereofJOULWATT TECH CO LTD·Filed 2025·Application pending·0 cites
- 3660US2025211108A1Power converter and current comparison circuitJOULWATT TECH CO LTD·Filed 2024·Application pending·0 cites
- 3759US12489354B2Dropout voltage generation circuit, switching power supply and dropout voltage generation methodJOULWATT TECH CO LTD·Filed 2023·Granted Dec 2, 2025·0 cites·17 claims
- 3859US12218600B2Flyback converter and power supply system with dynamic under voltage protectionJOULWATT TECH CO LTD·Filed 2022·Granted Feb 4, 2025·0 cites·14 claims
- 3959US2024291264A1Electronic fuse circuit and circuit system using the sameJOULWATT TECH CO LTD·Filed 2024·Application pending·0 cites
- 4059US2025023467A1Power converter adopting hybrid modulation and control circuit and control method thereofJOULWATT TECH CO LTD·Filed 2024·Application pending·0 cites
- 4159US2026011658A1Multi-Die Packaging StructureJOULWATT TECH CO LTD·Filed 2025·Application pending·0 cites
- 4258US12317382B2Dimming method and dimming circuitJOULWATT TECH CO LTD·Filed 2023·Granted May 27, 2025·0 cites·14 claims
- 4358US12224670B2Frequency regulating circuit, frequency regulating method and switching circuitJOULWATT TECH CO LTD·Filed 2022·Granted Feb 11, 2025·0 cites·16 claims
- 4458US2025105721A1Multiphase power converter and control circuit, control method thereofJOULWATT TECH CO LTD·Filed 2024·Application pending·0 cites
- 4558US2025096756A1Error amplifier switching converter and a control method of error amplifierJOULWATT TECH CO LTD·Filed 2024·Application pending·0 cites
- 4658US2023411236A1Package structure for power convertor and manufacturing method thereofJOULWATT TECH CO LTD·Filed 2023·Application pending·0 cites
- 4757US12396266B2Electrostatic protection device including scr and manufacturing method thereofJOULWATT TECH CO LTD·Filed 2022·Granted Aug 19, 2025·0 cites·15 claims
- 4857US12206393B2Current limiting circuit of switching circuit and switching circuitJOULWATT TECH CO LTD·Filed 2022·Granted Jan 21, 2025·0 cites·17 claims
- 4957US2025331311A1Electrostatic discharge semiconductor device and manufacturing method thereofJOULWATT TECH CO LTD·Filed 2025·Application pending·0 cites
- 5057US2024213939A1Operational amplifier circuit and switching circuit using the sameJOULWATT TECH CO LTD·Filed 2023·Application pending·0 cites
Showing the top 50 of 84 patent records by PatentIndex Score.
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