Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6737908 | Bootstrap reference circuit including a shunt bandgap regulator with external start-up current source | Michael J. Mottola | 2004-05-18 |
| 6600618 | Time domain voice coil motor control circuit and method | — | 2003-07-29 |
| 6064539 | Method of retracting a read and/or write head for parking | Michael W. Null, Francesco Carobolante | 2000-05-16 |
| 5920166 | Control of slew rate during turn-on of motor driver transistors | Massimiliano Brambilla | 1999-07-06 |
| 5777449 | Torque ripple reduction using back-emf feedback | — | 1998-07-07 |
| 5661383 | Control of slew rate during turn-on of motor driver transistors | Massimiliano Brambilla | 1997-08-26 |
| 5656897 | Current sensing and control in brushless DC motors | Francesco Carobolante, Li-Hsin D. Lu | 1997-08-12 |
| 5619109 | Method and circuitry for drag braking a polyphase DC motor | Scott W. Cameron | 1997-04-08 |
| 5616993 | Method and apparatus for switching a motor between bipolar and unipolar mode | Li-Hsin D. Lu | 1997-04-01 |
| 5572096 | Method and circuit for clamping the recirculation current in stator windings | — | 1996-11-05 |
| 5550446 | Dual slew rate circuit for driver transistors in disk drives | Li-Hsin D. Lu | 1996-08-27 |
| 5514939 | Circuitry for switching the body nodes of driver transistors in drive circuitry for brushless DC motors | Francesco Carobolante, Solomon Ng | 1996-05-07 |
| 5486788 | Chopper stabilized operational transconductance amplifier | Solomon Ng | 1996-01-23 |
| 5451832 | Method and circuitry for drag braking a polyphase DC motor | Scott W. Cameron | 1995-09-19 |