Assignee
JOULWATT TECH (HANGZHOU) CO LTD
CN·39 granted patents·1 pending application·143 citations·filing 2015–2021
Top patents by PatentIndex Score
40 records- 0196US10505442B2Synchronous rectification control circuit, method and flyback switch circuitJOULWATT TECH HANGZHOU CO LTD·Filed 2017·Granted Dec 10, 2019·16 cites·10 claims
- 0296US10461653B1Active-clamp flyback circuit and control method thereofJOULWATT TECH HANGZHOU CO LTD·Filed 2019·Granted Oct 29, 2019·14 cites·20 claims
- 0395US10153684B2Bleeder circuitJOULWATT TECH HANGZHOU CO LTD·Filed 2016·Granted Dec 11, 2018·37 cites·9 claims
- 0493US10644604B2Flyback switching power supplyJOULWATT TECH HANGZHOU CO LTD·Filed 2019·Granted May 5, 2020·9 cites·14 claims
- 0591US10886853B1Power device driving method and drive circuit for switching circuit, and the switching circuitJOULWATT TECH HANGZHOU CO LTD·Filed 2019·Granted Jan 5, 2021·10 cites·10 claims
- 0689US10199949B1Active-clamp flyback circuit and control method thereofJOULWATT TECH HANGZHOU CO LTD·Filed 2018·Granted Feb 5, 2019·6 cites·17 claims
- 0789US10143051B2Bleeder circuit and control method thereof, and LED control circuitJOULWATT TECH HANGZHOU CO LTD·Filed 2017·Granted Nov 27, 2018·7 cites·10 claims
- 0889US10090750B1Isolating switch circuit and control method thereofJOULWATT TECH HANGZHOU CO LTD·Filed 2018·Granted Oct 2, 2018·6 cites·20 claims
- 0987US10411685B2Circuit and method for detecting current zero-crossing point, and circuit and method for detecting load voltageJOULWATT TECH HANGZHOU CO LTD·Filed 2015·Granted Sep 10, 2019·4 cites·18 claims
- 1085US10355604B2Control circuit and control method for switch circuit and switching-mode power supply circuitJOULWATT TECH HANGZHOU CO LTD·Filed 2017·Granted Jul 16, 2019·5 cites·13 claims
- 1184US10298129B1Power supplying circuit for drive of switching power supply and switching power supplyJOULWATT TECH HANGZHOU CO LTD·Filed 2018·Granted May 21, 2019·4 cites·20 claims
- 1283US11288431B2Method and system for establishing metal interconnection layer capacitance prediction modelJOULWATT TECH HANGZHOU CO LTD·Filed 2020·Granted Mar 29, 2022·2 cites·9 claims
- 1382US11652098B2Transistor structure for electrostatic protection and method for manufacturing sameJOULWATT TECH HANGZHOU CO LTD·Filed 2021·Granted May 16, 2023·2 cites·11 claims
- 1481US11165355B2Clamping switch abnormality detection method, clamping switch abnormality detection circuit and switch circuitJOULWATT TECH HANGZHOU CO LTD·Filed 2020·Granted Nov 2, 2021·3 cites·20 claims
- 1581US10396658B2Power supply protection circuit and methodJOULWATT TECH HANGZHOU CO LTD·Filed 2017·Granted Aug 27, 2019·4 cites·2 claims
- 1678US10205448B2Switch control circuit and switch circuitJOULWATT TECH HANGZHOU CO LTD·Filed 2017·Granted Feb 12, 2019·3 cites·20 claims
- 1777US10218272B2Control circuit and control method for switch power supply, and switch power supplyJOULWATT TECH HANGZHOU CO LTD·Filed 2017·Granted Feb 26, 2019·2 cites·18 claims
- 1876US11463079B2Power transistor driving method, driving circuit and switching circuitJOULWATT TECH HANGZHOU CO LTD·Filed 2020·Granted Oct 4, 2022·1 cites·19 claims
- 1975US10951108B1Switching power supply controlling circuit and controlling method thereofJOULWATT TECH HANGZHOU CO LTD·Filed 2019·Granted Mar 16, 2021·3 cites·14 claims
- 2072US11201553B2Control method and control circuit for switching power supply circuit, and switching power supply circuitJOULWATT TECH HANGZHOU CO LTD·Filed 2019·Granted Dec 14, 2021·2 cites·8 claims
- 2171US10320291B2Control circuit and device with edge comparison for switching circuitJOULWATT TECH HANGZHOU CO LTD·Filed 2017·Granted Jun 11, 2019·2 cites·12 claims
- 2265US10075152B2Integrated circuit with multiplexed pin and pin multiplexing methodJOULWATT TECH HANGZHOU CO LTD·Filed 2017·Granted Sep 11, 2018·1 cites·20 claims
- 2351US11309796B2Control method of single live line charging circuit, control circuit of single live line charging circuit and single live line charging circuitJOULWATT TECH HANGZHOU CO LTD·Filed 2020·Granted Apr 19, 2022·0 cites·19 claims
- 2450US11563381B2Control method of switching circuit, control circuit of switching circuit, and switching circuitJOULWATT TECH HANGZHOU CO LTD·Filed 2020·Granted Jan 24, 2023·0 cites·9 claims
- 2548US10855163B2Supply method of dual-chip power circuit and dual-chip power circuitJOULWATT TECH HANGZHOU CO LTD·Filed 2020·Granted Dec 1, 2020·0 cites·9 claims
- 2648US10715125B2Circuit and method for detecting current zero-crossing point and circuit and method for detecting load voltageJOULWATT TECH HANGZHOU CO LTD·Filed 2019·Granted Jul 14, 2020·0 cites·16 claims
- 2746US12100741B2Lateral double-diffused transistor and manufacturing method thereofJOULWATT TECH HANGZHOU CO LTD·Filed 2020·Granted Sep 24, 2024·0 cites·19 claims
- 2846US10327296B2Dimming circuit, dimming method and LED driving circuitJOULWATT TECH HANGZHOU CO LTD·Filed 2017·Granted Jun 18, 2019·0 cites·12 claims
- 2945US11152866B2Active clamping flyback circuit and control method thereofJOULWATT TECH HANGZHOU CO LTD·Filed 2019·Granted Oct 19, 2021·0 cites·10 claims
- 3045US10411586B2Circuit and method for overcurrent control and power supply system including the sameJOULWATT TECH HANGZHOU CO LTD·Filed 2017·Granted Sep 10, 2019·0 cites·10 claims
- 3144US11438979B2LED driving circuit and LED driving methodJOULWATT TECH HANGZHOU CO LTD·Filed 2020·Granted Sep 6, 2022·0 cites·20 claims
- 3242US10263610B2Control method and control circuit for switch circuit and switch circuit deviceJOULWATT TECH HANGZHOU CO LTD·Filed 2017·Granted Apr 16, 2019·0 cites·3 claims
- 3341US10645780B2Control circuit and control method for lighting circuit, and lighting circuitJOULWATT TECH HANGZHOU CO LTD·Filed 2019·Granted May 5, 2020·0 cites·10 claims
- 3441US10506684B2Protection circuit and illumination driving circuitJOULWATT TECH HANGZHOU CO LTD·Filed 2017·Granted Dec 10, 2019·0 cites·4 claims
- 3540US11218136B2Power transistor driving method, driving circuit and switching circuitJOULWATT TECH HANGZHOU CO LTD·Filed 2020·Granted Jan 4, 2022·0 cites·5 claims
- 3640US10418910B2Isolated switch-mode power supply and control circuit and control method for isolated switch-mode power supplyJOULWATT TECH HANGZHOU CO LTD·Filed 2018·Granted Sep 17, 2019·0 cites·12 claims
- 3739US9918365B1Ripple removing circuit and LED control circuit applying the sameJOULWATT TECH HANGZHOU CO LTD·Filed 2016·Granted Mar 13, 2018·0 cites·20 claims
- 3836US10886913B2Drive method and drive circuit for power switch, and power supply systemJOULWATT TECH HANGZHOU CO LTD·Filed 2017·Granted Jan 5, 2021·0 cites·17 claims
- 3934US9787182B2Self-adaption current control circuitJOULWATT TECH (HANGZHOU) CO LTD·Filed 2016·Granted Oct 10, 2017·0 cites·8 claims
- 4032US2017117802A1Circuit for increasing buck output voltageJOULWATT TECH (HANGZHOU) CO LTD·Filed 2016·Application pending·0 cites
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