Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8427126 | Digital control of PWM converters with nonlinear gain scheduling | Hao Peng | 2013-04-23 |
| 8344703 | Variable on-time control method for high light-load efficiency, small output voltage ripple, and audible-noise-free operation | Veter Chang | 2013-01-01 |
| 7508182 | Method and apparatus for improved current mode control for large conversion ratio synchronous buck converter with lossless current sense | — | 2009-03-24 |
| 6376999 | Electronic ballast employing a startup transient voltage suppression circuit | Yushan Li | 2002-04-23 |
| 6373725 | Reconfigurable converter for multiple-level input-line voltages | Adan F. Hernandez, Gert W. Bruning | 2002-04-16 |
| 6362575 | Voltage regulated electronic ballast for multiple discharge lamps | Theo Stommen | 2002-03-26 |
| 6337800 | Electronic ballast with inductive power feedback | — | 2002-01-08 |
| 6326740 | High frequency electronic ballast for multiple lamp independent operation | Gert W. Bruning | 2001-12-04 |
| 6310444 | Multiple lamp LCD backlight driver with coupled magnetic components | — | 2001-10-30 |
| 6288497 | Matrix structure based LED array for illumination | Shaomin Peng | 2001-09-11 |
| 6249088 | Three-dimensional lattice structure based led array for illumination | — | 2001-06-19 |
| 6239557 | Transformer winding technique with reduced parasitic capacitance effects | Roderick T. Himman | 2001-05-29 |
| 6201353 | LED array employing a lattice relationship | Shaomin Peng | 2001-03-13 |
| 6194839 | Lattice structure based LED array for illumination | — | 2001-02-27 |
| 6194840 | Self-oscillating resonant converter with passive filter regulator | — | 2001-02-27 |
| 6181079 | High power electronic ballast with an integrated magnetic component | Adan F. Hernandez | 2001-01-30 |
| 6169374 | Electronic ballasts with current and voltage feedback paths | — | 2001-01-02 |
| 6072710 | Regulated self-oscillating resonant converter with current feedback | — | 2000-06-06 |
| 6016257 | Voltage regulated power supply utilizing phase shift control | Joseph Chang, Gert W. Bruning | 2000-01-18 |
| 5781418 | Switching scheme for power supply having a voltage-fed inverter | Joseph Chang | 1998-07-14 |