WC

Wei-Hsu Chang

RT Richtek Technology: 46 patents #8 of 459Top 2%
UC Unity Opto Technology Co.: 22 patents #2 of 53Top 4%
Overall (All Time): #26,685 of 4,157,543Top 1%
73
Patents All Time

Issued Patents All Time

Showing 25 most recent of 73 patents

Patent #TitleCo-InventorsDate
12431791 High efficiency boost power factor correction circuit having shared pin and conversion control circuit thereof Shih-Ho Hsu, Kun-Yu Lin 2025-09-30
12407248 Feedforward frequency response for resonant charge pump Kuo-Chi Liu, Ta-Yung Yang 2025-09-02
12381470 Power supply system Ta-Yung Yang, Shih-Ho Hsu, Mao-Hui Kuo 2025-08-05
12362665 Power converter for reducing switching loss and enhancing system efficiency and control method thereof Kuo-Chi Liu, Ta-Yung Yang 2025-07-15
12348153 High efficiency charging system and power conversion circuit thereof Ta-Yung Yang 2025-07-01
12273035 Control circuit and method for use in stackable multiphase power converter Ta-Yung Yang, Kuo-Chi Liu, Chao-Chi Chen 2025-04-08
12199506 Switched capacitor voltage converter circuit and control method of switched capacitor converter Kuo-Chi Liu, Ta-Yung Yang 2025-01-14
12136877 Switched capacitor voltage converter circuit and switched capacitor voltage conversion method Kuo-Chi Liu, Ta-Yung Yang 2024-11-05
12107492 Power factor correction converter, controller and zero current prediction circuit thereof 2024-10-01
12095359 Power factor correction converter, controller and digital peak-hold circuit thereof 2024-09-17
11876189 Battery system, battery module and battery control circuit thereof Hao-Wen Chung, Chung-Hui Yeh, Kuo-Chen Tsai 2024-01-16
11843321 Control circuit having power saving mode for use in power supply circuit Ta-Yung Yang, Yu-Chang Chen, Tsung-Wei Huang, Shui-Mu Lin 2023-12-12
11843344 Brushless DC electric (BLDC) motor driver circuit 2023-12-12
11581797 Multiple outputs universal serial bus travel adaptor and control method thereof Shih-Jen Yang, Yi-Wei Lee, Ta-Yung Yang 2023-02-14
11545908 Flyback power converter and conversion controller circuit Kun-Yu Lin, Tzu-Chen Lin, Ta-Yung Yang 2023-01-03
11496063 Flyback converter and switching controller circuit and control method thereof Yu-Chang Chen, Kun-Yu Lin, Ta-Yung Yang 2022-11-08
11451154 Flyback converter with a variable frequency discontinuous mode and valley sensing Kun-Yu Lin, Tzu-Chen Lin, Ta-Yung Yang 2022-09-20
11329489 Rechargeable battery with communication and battery control circuit thereof Ta-Yung Yang 2022-05-10
11329491 Distributed battery balance management method and battery system using this method Wei-Ting Tai 2022-05-10
11304272 Lighting system and conversion controller circuit thereof Chang-Yu Wu 2022-04-12
11245267 Battery system, battery module and battery control circuit thereof 2022-02-08
11137733 Foreign object detection method and power system capable of detecting foreign object Jung-Won Kim 2021-10-05
11139744 Flyback power converter and secondary side controller circuit and control method thereof Ta-Yung Yang, Yu-Chang Chen, Chao-Chi Chen, Chuh-Ching Li, Li-Di Lo +1 more 2021-10-05
11139742 Switching controller circuit and method for controlling flyback power converter Ta-Yung Yang, Yu-Chang Chen, Chao-Chi Chen, Chuh-Ching Li, Li-Di Lo +1 more 2021-10-05
11139697 Foreign object detection method and power system capable of detecting foreign object Shang-Hung Hsieh 2021-10-05