Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7551008 | Circuit for fixing peak current of an inductor and method thereof | Mao-Chuan Chien, Yu-Min Sun | 2009-06-23 |
| 7501908 | Oscillation circuit having current scaling relationship and the method for using the same | Mao-Chuan Chien, Yu-Min Sun | 2009-03-10 |
| 7495499 | Power transistor circuit and the method thereof | Chien-Chuan Chung, Yu-Min Sun | 2009-02-24 |
| 7471117 | Circuit for detecting maximal frequency of pulse frequency modulation and method thereof | Li-Chieh Chen, Yu-Min Sun | 2008-12-30 |
| 7456622 | Circuit for starting up a synchronous step-up DC/DC converter and the method thereof | Mao-Chuan Chien, Yu-Min Sun | 2008-11-25 |
| 7446621 | Circuit and method for switching PFM and PWM | Li-Chieh Chen, Yu-Min Sun | 2008-11-04 |
| 7245114 | DC-to-DC step-up converter and conversion method thereof | You Min Sun, Mao Cyuan Jian, Shih Jie Liao | 2007-07-17 |