| 7843146 |
LED dimming control circuit |
Shang-Yu Chang Chien |
2010-11-30 |
| 7498791 |
Reverse current preventing circuit and method |
— |
2009-03-03 |
| 7474544 |
Initial voltage establishing circuit for a switching voltage converter |
— |
2009-01-06 |
| 7339360 |
Switching voltage regulator with an improved range of input voltage |
Li-Cheng Chen, Fang-Te Su |
2008-03-04 |
| 7271642 |
Charge pump drive circuit for a light emitting diode |
Chia-Hung Tsen |
2007-09-18 |
| 7180274 |
Switching voltage regulator operating without a discontinuous mode |
Guang-Nan Tzeng |
2007-02-20 |
| 7176667 |
Buck-boost voltage converter |
Guang-Nan Tzeng, Yu-Ming TSAI |
2007-02-13 |
| 7157888 |
Light loading control circuit for a buck-boost voltage converter |
Yu-Ming TSAI |
2007-01-02 |
| 7123060 |
Drive circuit for a switching element |
Chia-Hung Tsen |
2006-10-17 |
| 7106032 |
Linear voltage regulator with selectable light and heavy load paths |
Fang-Te Su |
2006-09-12 |
| 7050914 |
Current sensing circuit |
Guang-Nan Tzeng |
2006-05-23 |
| 7009857 |
Soft-start charge pump circuit |
Guang-Nan Tzeng |
2006-03-07 |
| 6995603 |
High efficiency charge pump with prevention from reverse current |
Guang-Nan Tzeng |
2006-02-07 |
| 6911867 |
Error amplifier and DC-DC converter and the method thereof |
Guang-Nan Tzeng, Yung-Chih Chen |
2005-06-28 |
| 6903935 |
Memory card with a static electricity conducting board |
— |
2005-06-07 |
| 6903537 |
Switching DC-to-DC converter with multiple output voltages |
Guang-Nan Tzeng, Chi-Yang Chen |
2005-06-07 |
| 6861830 |
Method of improving transient noise of a switching DC-to-DC converter with multiple output voltages |
Guang-Nan Tzeng, Chi-Yang Chen |
2005-03-01 |
| 6791368 |
Current sensing circuit and method of a high-speed driving stage |
Guang-Nan Tzeng |
2004-09-14 |
| 6724989 |
Camera strobe recharging integrated circuit |
Ching-Kun Lin, Yung-Chih Chen |
2004-04-20 |