Issued Patents 1989
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890021 | Noise spike elimination circuit for pulse width modulators | — | 1989-12-26 |
| 4887021 | Precision noise spike elimination circuit for pulse width modulators and PWM inverters | — | 1989-12-12 |
| 4877982 | MOSFET turn-on/off circuit | — | 1989-10-31 |
| 4868499 | Object detector with feedback which holds constant the product of the transmitter coil current and frequency to maintain constant sensor voltage output | — | 1989-09-19 |
| 4814687 | Following voltage/current regulator | — | 1989-03-21 |
| 4815052 | Automatic overvoltage protection circuit | — | 1989-03-21 |