Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9887632 | Step-up KP ripple free converter | Ming-Chieh Cheng | 2018-02-06 |
| 9887629 | Pulsating current ripple cancelling circuit and power converting system using the same | Ming-Chieh Cheng | 2018-02-06 |
| 9831785 | Step-up/down direct current converter | Ming-Chieh Cheng, Yen-Shin Lai | 2017-11-28 |
| 9667160 | Step-down direct current converter | Ming-Chieh Cheng | 2017-05-30 |
| 9455634 | DC-DC power conversion apparatus | Po-Yen Chen, Ta-Sheng Hung | 2016-09-27 |
| 9419525 | Isolated power conversion apparatus and method of converting power | Po-Yen Chen, Ta-Sheng Hung | 2016-08-16 |
| 9343956 | Passive power factor correction circuit, electronic device applying the same and operation methods thereof | Wen-Tien Tsai, Ching-Ran Lee, Po-Yen Chen | 2016-05-17 |
| 9257904 | Direct current conversion circuit | Wen-Tien Tsai, Ching-Ran Lee, Po-Yen Chen | 2016-02-09 |
| 9203297 | AC/DC converter and method of correcting power factor | Po-Yen Chen, Ta-Sheng Hung | 2015-12-01 |
| 9190904 | DC conversion circuit | Wen-Tien Tsai, Ching-Ran Lee, Po-Yen Chen | 2015-11-17 |
| 9093898 | Buck converter with single stage | Po-Yen Chen | 2015-07-28 |
| 9054603 | DC to AC conversion circuit with resonant circuit | Po-Yen Chen, Pao-Chuan Lin, Ming-Che Yang | 2015-06-09 |
| 9048750 | Active buck power factor correction device | Wen-Tien Tsai, Ching-Ran Lee, Po-Yen Chen | 2015-06-02 |
| 9000609 | Extension cord with AC and DC outputs for coupling AC and DC sources | Po-Yen Chen, Yu-Hsiang Lee, Hao-Chien Cheng | 2015-04-07 |
| 8995153 | Passive power factor correction circuit | Po-Yen Chen | 2015-03-31 |
| 8971058 | High-efficiency high step-up ratio direct current converter with interleaved soft-switching mechanism | Ming-Chieh Cheng, Ching-Ming Lai, Yen-Liang Chou, Chih-Hsing Fang, Wen-Wei Chan | 2015-03-03 |
| 8854844 | AC/DC converter with passive power factor correction circuit and method of correcting power factor | Po-Yen Chen, Ta-Sheng Hung | 2014-10-07 |
| 8724356 | Two-stage isolated DC/AC conversion circuit structure | Po-Yen Chen, Ching-Hsiang Cheng | 2014-05-13 |
| 8716944 | Non-isolated AC/DC converter with power factor correction | Po-Yen Chen, Yu-Hsiang Lee | 2014-05-06 |
| 8699237 | Soft-switching inverter utilizing high step up ratio circuit with active clamping | Ming-Chieh Cheng, Yu Wang, En-Lin Chen | 2014-04-15 |
| 8643294 | Single stage electronic ballast with power factor correction | Po-Yen Chen, En-Lin Chen, CHIH-LUNG LEE, Yu Wang | 2014-02-04 |
| 8503198 | High boost ratio DC converter | Chao-Han Lee | 2013-08-06 |
| 8493753 | Photovoltaic powered system | Ching-Ming Lai, Chih-Hsing Fang, Wen-Wei Chan, Ming-Chieh Cheng | 2013-07-23 |
| 8391035 | Integrated-type high step-up ratio DC-AC conversion circuit with auxiliary step-up circuit | Ching-Ming Lai | 2013-03-05 |
| 8278847 | LED mixture control device and controlling method thereof | Po-Yen Chen, Ching-Ran Lee, Li-Ling Lee | 2012-10-02 |