Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8324967 | System and method for controlling a power amplifier using a programmable ramp circuit | Huaimao Sheng | 2012-12-04 |
| 7888980 | Charge pump with low charge injection and low clock feed-through | Huaimao Sheng | 2011-02-15 |
| 6989710 | Binary frequency-shift keying demodulator and frequency-to-voltage converter | Zhaofeng Zhang, Jun Wu | 2006-01-24 |
| 6876529 | Electrostatic discharge protection circuit | — | 2005-04-05 |
| 6208183 | Gated delay-locked loop for clock generation applications | Akbar Ali, Matteo Conta | 2001-03-27 |
| 6072289 | System and method for controlling high side slew rate in a spindle motor driver | — | 2000-06-06 |
| 5986493 | Clamping circuit and method for clamping a voltage | — | 1999-11-16 |
| 5982217 | PNP driven NMOS ESD protection circuit | Julian Zhiliang Chen, Thomas A. Vrotsos, Charvaka Duvvury | 1999-11-09 |
| 5936365 | Method and apparatus for using back EMF to control a motor | Chin-Lung Li | 1999-08-10 |
| 5723963 | Apparatus and method for controlling transition between PWM and linear operation of a motor | Chinh Nguyen, Masimiliano Brambilla, Eugene Lee, Athos Canclini | 1998-03-03 |
| 5689162 | Apparatus and method for current sensing for motor driver in pwm mode | — | 1997-11-18 |
| 5610486 | Current mirror circuit used in a coil driver circuit of a brushless DC motor | — | 1997-03-11 |